ORCID Profile
0000-0001-8815-1951
Current Organisation
Deakin University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Nanomaterials | Nanotechnology | Nanofabrication, Growth and Self Assembly | Nanotechnology | Physical Chemistry (Incl. Structural) | Functional Materials | Materials Engineering | Mineralogy and Crystallography | Chemical Spectroscopy | Hybrid Vehicles and Powertrains | Colloid And Surface Chemistry | Macromolecular and Materials Chemistry | Polymerisation Mechanisms | Characterisation Of Macromolecules | Agricultural Biotechnology not elsewhere classified | Nanotechnology not elsewhere classified | Energy Generation, Conversion and Storage Engineering | Mechanical Engineering | Metals and Alloy Materials | Geology not elsewhere classified
ANZSRC Socio-Economic Objective (SEO)
Expanding Knowledge in Technology | Biological sciences | Energy Storage (excl. Hydrogen) | Expanding Knowledge in the Physical Sciences | Climate Change Mitigation Strategies | Solar-photoelectric | Environmentally Sustainable Manufacturing not elsewhere classified | Manufacturing not elsewhere classified | Diagnostic methods | Earth sciences | Chemical sciences | Industrial chemicals and related products | Environmentally Sustainable Energy Activities not elsewhere classified | Expanding Knowledge in Engineering | Diagnostics |
Related Links
Publications
Protein Electrochemistry Using Aligned Carbon Nanotube Arrays
Publisher: American Chemical Society (ACS)
Date: 07-2003
DOI: 10.1021/JA035722F
Abstract: The remarkable electrocatalytic properties and small size of carbon nanotubes make them ideal for achieving direct electron transfer to proteins, important in understanding their redox properties and in the development of biosensors. Here, we report shortened SWNTs can be aligned normal to an electrode by self-assembly and act as molecular wires to allow electrical communication between the underlying electrode and redox proteins covalently attached to the ends of the SWNTs, in this case, microperoxidase MP-11. The efficiency of the electron transfer through the SWNTs is demonstrated by electrodes modified with tubes cut to different lengths having the same electron-transfer rate constant.
Toward Ubiquitous Environmental Gas Sensors—Capitalizing on the Promise of Graphene
Publisher: American Chemical Society (ACS)
Date: 25-01-2010
DOI: 10.1021/ES902659D
Abstract: Atomically thin sheets of carbon known as "graphene" have captured the imagination of much of the scientific world during the past few years. Although these single sheets of graphite were under our noses for years-within technologies ranging from the humble pencil, which has been around since at least 1565 (Petroski, H. The Pencil: A History of Design and Circumstance Alfred A. Knopf: New York, 1993), to modern nuclear reactors-graphene was merely considered as part of graphite's crystal structure until 2004, when Novoselov, Geim, and colleagues (Science 2004, 306, 666-669) first presented some of the surprising electrical properties of graphene layers they had isolated by mechanically peeling sheets off graphite crystals. Today, graphene's unique electronic structures and properties, bolstered by other intriguing properties discovered in the intervening years, threaten the dominance of carbon nanotubes, a more mature allotrope of carbon, in potential applications from electronics to sensors. In this review, we will consider the promise of graphene for producing small-scale gas sensors for environmental monitoring.
Co-reactant Electrogenerated Chemiluminescence of Iridium(III) Complexes Containing an Acetylacetonate Ligand
Publisher: Wiley
Date: 03-05-2017
Fabrication of Cobaltosic Oxide Nanoparticle‐Doped 3 D MXene/Graphene Hybrid Porous Aerogels for All‐Solid‐State Supercapacitors
Publisher: Wiley
Date: 20-03-2019
Abstract: MXenes are a new family of 2 D transition metal carbides and nitrides, which have attracted enormous attention in electrochemical energy storage, sensing technology, and catalysis owing to their good conductivity, high specific surface area, and excellent electrochemical properties. In this work, a series of Co
Synthesis of petaloid and origami-lantern shaped MnO2/Co2CH@C hierarchical core-shell nanorod arrays for portable asymmetric supercapacitor
Publisher: Elsevier BV
Date: 06-2021
A highly conductive porous graphene electrode prepared via in situ reduction of graphene oxide using Cu nanoparticles for the fabrication of high performance supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA07857A
Abstract: A new graphene/Cu nanoparticle composite was prepared via the in situ reduction of GO in the presence of Cu nanoparticles which was then utilized as a sacrificing template for the formation of graphene electrodes for supercapacitors.
Highly Conductive Ti3C2Tx MXene Hybrid Fibers for Flexible and Elastic Fiber‐Shaped Supercapacitors
Publisher: Wiley
Date: 17-01-2019
Abstract: Fiber-shaped supercapacitors (FSCs) are promising energy storage solutions for powering miniaturized or wearable electronics. However, the scalable fabrication of fiber electrodes with high electrical conductivity and excellent energy storage performance for use in FSCs remains a challenge. Here, an easily scalable one-step wet-spinning approach is reported to fabricate highly conductive fibers using hybrid formulations of Ti
Nanomaterials for enhancing photosynthesis: interaction with plant photosystems and scope of nanobionics in agriculture
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2EN00451H
Abstract: The complex process of photosynthesis requires precise arrangements of light harvesting molecules in the photosynthetic system.
Investigation of Self-assembled Monolayer by Atom Probe Microscopy
Publisher: Oxford University Press (OUP)
Date: 07-2009
DOI: 10.1017/S1431927609093003
Abstract: Extended abstract of a paper presented at Microscopy and Microanalysis 2009 in Richmond, Virginia, USA, July 26 – July 30, 2009
Non-covalent surface modification of boron nitride nanotubes for enhanced catalysis
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3CC45667F
Abstract: Boron nitride nanotubes were functionalized with microperoxidase-11 in aqueous media, showing improved catalytic performance due to a strong electron coupling between the active centre of microperoxidase-11 and boron nitride nanotubes.
The Influence of Graphene on the Electrical Communication Through Organic Layers on Graphite and Gold Electrodes
Publisher: Wiley
Date: 20-09-2014
CoS 2 nanoneedle array on Ti mesh: A stable and efficient bifunctional electrocatalyst for urea-assisted electrolytic hydrogen production
Publisher: Elsevier BV
Date: 08-2017
Nickel‐Borate/Reduced Graphene Oxide Nanohybrid: A Robust and Efficient Electrocatalyst for Oxygen Evolution Reaction in Alkaline and Near Neutral Media
Publisher: Wiley
Date: 02-05-2018
Boron Radicals Identified as the Source of the Unexpected Catalysis by Boron Nitride Nanosheets
Publisher: American Chemical Society (ACS)
Date: 23-01-2019
Abstract: Atomically thin boron nitride (BN) nanosheets were generally considered to be chemically inert until the recent discovery of the surprising catalysis. However, the origin of this unusual catalytic activity remains unclear. We have observed the free boron radicals at the edges and defective sites of BN nanosheets and demonstrated with both experimental and theoretical approaches that the boron radicals in the nanosheets can catalyze the chromogenic reaction of 3,5,3',5'-tetramethylbenzidine and serve as a source of reactive radicals for the co-reactant electrogenerated chemiluminescence of tris(2,2'-bipyridine)ruthenium(2+). These findings suggest BN nanosheets as a type of nonmetal catalyst.
Interleukin-10 Inhibits Bone Resorption: A Potential Therapeutic Strategy in Periodontitis and Other Bone Loss Diseases
Publisher: Hindawi Limited
Date: 2014
DOI: 10.1155/2014/284836
Abstract: Periodontitis and other bone loss diseases, decreasing bone volume and strength, have a significant impact on millions of people with the risk of tooth loss and bone fracture. The integrity and strength of bone are maintained through the balance between bone resorption and bone formation by osteoclasts and osteoblasts, respectively, so the loss of bone results from the disruption of such balance due to increased resorption or/and decreased formation of bone. The goal of therapies for diseases of bone loss is to reduce bone loss, improve bone formation, and then keep healthy bone density. Current therapies have mostly relied on long-term medication, exercise, anti-inflammatory therapies, and changing of the life style. However there are some limitations for some patients in the effective treatments for bone loss diseases because of the complexity of bone loss. Interleukin-10 (IL-10) is a potent anti-inflammatory cytokine, and recent studies have indicated that IL-10 can contribute to the maintenance of bone mass through inhibition of osteoclastic bone resorption and regulation of osteoblastic bone formation. This paper will provide a brief overview of the role of IL-10 in bone loss diseases and discuss the possibility of IL-10 adoption in therapy of bone loss diseases therapy.
Azide photochemistry for facile modification of graphitic surfaces: preparation of DNA-coated carbon nanotubes for biosensing (vol 23, 425503, 2012)
Publisher: IOP Publishing
Date: 21-08-2013
Monitoring acid-base, precipitation, complexation and redox titrations by a capacitively coupled contactless conductivity detector
Publisher: Elsevier BV
Date: 02-2018
A self-enhanced and recyclable catalytic system constructed from magnetic bi-nano-bionic enzymes for real-time control of RAFT polymerization
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9TC04947A
Abstract: Flower-like Fe 3 O 4 @Au nanoparticles are constructed as bi-nano-bionic enzymes to catalyze the generation of hydroxyl radicals as an initiator for RAFT controlled polymerizations.
Magnetotransport dependence on the field magnitude and direction in large area epitaxial graphene film on stretchable substrates
Publisher: AIP Publishing
Date: 04-03-2013
DOI: 10.1063/1.4794868
Abstract: We report the magnetotransport properties of large area graphene on stretchable polyethylene terephthalate substrates. At 2 K, weak localization of electrons introduced negative magnetoresistance at low field a transition to positive magnetoresistance followed as the external field increases. Our results suggest that weak localization contributes to Hall effect at low temperature. At room temperature, only classical Lorentz force contribution can be observed. Angular dependence of the external magnetic field on longitudinal and transverse resistivity is measured to test the interplay between weak localization and Lorentz force contribution. Quantitative simulations based on quantum interference theory produced excellent agreement with the experiments.
Preparation and adsorption of phosphorus by new heteropolyacid salt-lanthanum oxide composites
Publisher: Informa UK Limited
Date: 28-09-0002
A simple and large-scale method to prepare flexible hollow graphene fibers for a high-performance all-solid fiber supercapacitor
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7NJ02042B
Abstract: The fabrication of hollow graphene fibers (HGFs) via simple spray deposition of GO on silk fiber templates for a flexible supercapacitor.
Screen-printable films of graphene/CoS2/Ni3S4 composites for the fabrication of flexible and arbitrary-shaped all-solid-state hybrid supercapacitors
Publisher: Elsevier BV
Date: 05-2019
In Situ Immobilization of Multi-Enzymes for Enhanced Substrate Channeling of Enzyme Cascade Reactions: A Nanoarchitectonics Approach by Directed Metal–Organic Frameworks
Publisher: American Chemical Society (ACS)
Date: 25-05-2023
Graphene modified gold electrode via pi-pi stacking interaction for analysis of Cu2+ and Pb2+
Publisher: Elsevier BV
Date: 03-2013
Dispersing Carbon Nanotubes with Graphene Oxide in Water and Synergistic Effects between Graphene Derivatives
Publisher: Wiley
Date: 02-08-2010
An acetylcholinesterase inhibition biosensor based on a reduced graphene oxide/silver nanocluster/chitosan nanocomposite for detection of organophosphorus pesticides
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5AY01439E
Abstract: A sensitive electrochemical acetylcholinesterase biosensor based on a reduced graphene oxide and silver nanocluster modified glassy carbon electrode was developed.
Fast and scalable wet-spinning of highly conductive PEDOT:PSS fibers enables versatile applications
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA00022D
Abstract: Here, we report a one-step method to produce highly conducting poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) fibers that enables applications in fast response and highly sensitive touch sensors, body moisture monitoring, and long fiber-shaped supercapacitors.
Investigating the Mechanism for the Enhanced Oxidation Stability of Microencapsulated Omega-3 Concentrates
Publisher: MDPI AG
Date: 28-02-2019
DOI: 10.3390/MD17030143
Abstract: Enzymatically concentrated anchovy oil (concentrate) is known to be much less stable than unconcentrated anchovy oil. However, we previously showed that concentrate surprisingly forms more stable microcapsules, when produced by complex coacervation, than does unconcentrated anchovy oil. Here we investigate the mechanism of this unexpected stability. We also investigate whether or not incorporation of concentrate can be used as an additive to improve the stability of unconcentrated anchovy oil microcapsules. Results showed that microcap stability increased as the amount of added concentrate increased. Decreased emulsion droplet size, lower positively charged zeta potential, and higher surface hydrophobicity were observed in the oil/water (O/W) emulsion, with the incorporation of concentrate in the oil phase, compared with the unconcentrated anchovy oil O/W emulsion. Both the decreased zeta potential and the increased hydrophobicity of concentrate in the mixed oil phase may improve droplet agglomeration, leading to enhanced oxidative stability of the concentrate-containing microcapsules. Decreased repulsive forces between droplets result in a more compact structure, thicker outer shell, and smoother surface, resulting in enhanced oxidation stability of the concentrate-containing microcapsules.
Recent advances in cobalt phosphide based materials for energy-related applications
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA08386F
Abstract: Recent advances in cobalt phosphide-based materials for H 2 generation and electrochemical energy storage are systematically reviewed.
Characterisation of gold electrodes modified with self-assembled monolayers of L-cysteine for the adsorptive stripping analysis of copper
Publisher: Elsevier BV
Date: 12-2001
Ultrasensitive electrochemical biosensor for silver ion based on magnetic nanoparticles labeling with hybridization chain reaction amplification strategy
Publisher: Elsevier BV
Date: 10-2017
The comparative study of two kinds of β-Bi2 O3 /TiO2 binary composite and their removal of 17ɑ-ethynylestradiol
Publisher: Springer Science and Business Media LLC
Date: 04-09-2019
DOI: 10.1007/S11356-019-06348-8
Abstract: In this work, we used TiO
Diatoms: Self assembled silica nanostructures, and templates for bio/chemical sensors and biomimetic membranes
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0AN00602E
Abstract: In this review we highlight recent advances in the understanding of biosilica production, biomodification of diatom frustules and their subsequent applications in bio/chemical sensors, and as a model membrane for filtration and separation.
Step by step fabrication and characterization of Au (111) exposed single crystals
Publisher: IEEE
Date: 02-2010
Improving the rate capability of ultrathin NiCo-LDH nanoflakes and FeOOH nanosheets on surface electrochemically modified graphite fibers for flexible asymmetric supercapacitors
Publisher: Elsevier BV
Date: 02-2020
DOI: 10.1016/J.JCIS.2019.10.032
Abstract: A fiber asymmetric supercapacitor system is designed with NiCo-LDH nanoflakes and FeOOH nanosheets anchored on electrochemically activated graphite fibers as positive electrode and negative electrode, respectively. Due to the formation of COMetal bonding, the oxygen-functionalized carbon on electrochemically activated graphite fibers can bind strongly with NiCo-LDH and FeOOH, which assists in establishing the fast electron transfer routes and fluent ion transport avenues. Both NiCo-LDH and FeOOH anchored on electrochemically activated graphite fibers display a high rate performance, 80% and 87.3% of the electric capacity can be reserved with the current density increasing from 2 to 20 A g
Clay-Nanocomposite Based Smart Delivery Systems: A Promising Tool for Sustainable Farming
Publisher: American Chemical Society (ACS)
Date: 29-12-2023
Facile fluorescence strategy for sensitive detection of microcystin-LR based on dsDNA-templated copper nanoclusters
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9AY02250C
Abstract: We developed a simple, sensitive, low-cost and label-free method to detect microcystin-leucine-arginine (MC-LR) using double-strand DNA-templated copper nanoclusters (dsDNA-CuNCs) as fluorescent probes.
The TiO 2 (B) nano-belts with excellent performance prepared via alkaline stirring hydrothermal method and its application to remove 17α-ethynylestradiol
Publisher: Springer Science and Business Media LLC
Date: 17-09-2018
DOI: 10.1007/S11356-018-3122-8
Abstract: In this work, TiO
DNAzyme Based Nanomachine for in Situ Detection of MicroRNA in Living Cells
Publisher: American Chemical Society (ACS)
Date: 12-12-2017
DOI: 10.1021/ACSSENSORS.7B00710
Abstract: The capability of in situ detection of microRNA in living cells with signal lification strategy is of fundamental importance, and it will open up a new opportunity in development of diagnosis and prognosis of many diseases. Herein we report a swing DNA nanomachine for intracellular microRNA detection. The surfaces of Au nanoparticles (NPs) are modified by two hairpin DNA. We observe that one DNA (MB2) will open its hairpin structure upon partial hybridization with target miR-21 after entering into cells, and the other part of its hairpin structure could further react with the other hairpin DNA (MB1) to form a Zn
Acetylene plasma polymerized surfaces for covalent immobilization of dense bioactive protein monolayers
Publisher: Elsevier BV
Date: 02-2009
A nanoscale SQUID operating at high magnetic fields
Publisher: IOP Publishing
Date: 13-10-2011
DOI: 10.1088/0957-4484/22/45/455501
Abstract: A washer-free Nb nanoSQUID has been developed for measuring magnetization changes from nanoscale objects. The SQUID loop is etched into a 250 nm wide Au/Nb bilayer track and the diameter of the SQUID hole is ∼70 nm. In the presence of a magnetic field perpendicular to the plane of the SQUID, vortex penetration into the 250 nm wide track can be observed via the critical current-applied field characteristic and the value at which vortex first penetrates is consistent with the theoretical prediction. Upon removing the applied field, the penetrated vortices escape the track and the critical current at zero field is restored.
Carbon Nanomaterials in Biosensors: Should You Use Nanotubes or Graphene?
Publisher: Wiley
Date: 15-03-2010
Abstract: From diagnosis of life-threatening diseases to detection of biological agents in warfare or terrorist attacks, biosensors are becoming a critical part of modern life. Many recent biosensors have incorporated carbon nanotubes as sensing elements, while a growing body of work has begun to do the same with the emergent nanomaterial graphene, which is effectively an unrolled nanotube. With this widespread use of carbon nanomaterials in biosensors, it is timely to assess how this trend is contributing to the science and applications of biosensors. This Review explores these issues by presenting the latest advances in electrochemical, electrical, and optical biosensors that use carbon nanotubes and graphene, and critically compares the performance of the two carbon allotropes in this application. Ultimately, carbon nanomaterials, although still to meet key challenges in fabrication and handling, have a bright future as biosensors.
ZIF template-based Fe-doped defect-rich hierarchical structure Co3S4/MoS2 as a bifunctional electrocatalyst for overall water splitting
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3DT02273K
Switching off the interactions between graphene oxide and doxorubicin using vitamin C: combining simplicity and efficiency in drug delivery
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7TB03063K
Abstract: Delivery of doxorubicin using graphene oxide is remarkably improved by adding a little amount of vitamin C.
Self-Assembled Core–Satellite Gold Nanoparticle Networks for Ultrasensitive Detection of Chiral Molecules by Recognition Tunneling Current
Publisher: American Chemical Society (ACS)
Date: 29-04-2016
Abstract: Chirality sensing is a very challenging task. Here, we report a method for ultrasensitive detection of chiral molecule l/d-carnitine based on changes in the recognition tunneling current across self-assembled core-satellite gold nanoparticle (GNP) networks. The recognition tunneling technique has been demonstrated to work at the single molecule level where the binding between the reader molecules and the analytes in a nanojunction. This process was observed to generate a unique and sensitive change in tunneling current, which can be used to identify the analytes of interest. The molecular recognition mechanism between amino acid l-cysteine and l/d-carnitine has been studied with the aid of SERS. The different binding strength between homo- or heterochiral pairs can be effectively probed by the copper ion replacement fracture. The device resistance was measured before and after the sequential exposures to l/d-carnitine and copper ions. The normalized resistance change was found to be extremely sensitive to the chirality of carnitine molecule. The results suggested that a GNP networks device optimized for recognition tunneling was successfully built and that such a device can be used for ultrasensitive detection of chiral molecules.
Nucleic acid isothermal amplification-based soft nanoarchitectonics as an emerging electrochemical biosensing platform
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2NR02031A
Abstract: We provide an overview of recent efforts in obtaining signal- lified sensing systems along with their biological applications, current challenges and prospects in this promising new area.
Novel sphene coatings on Ti-6Al-4V for orthopedic implants using sol-gel method
Publisher: Elsevier BV
Date: 05-2008
DOI: 10.1016/J.ACTBIO.2007.11.005
Abstract: Hydroxyapatite (HAp) is commonly used to coat titanium alloys (Ti-6Al-4V) for orthopedic implants. However, their poor adhesion strength and insufficient long-term stability limit their application. Novel sphene (CaTiSiO5) ceramics possess excellent chemical stability and cytocompatibility. The aim of this study is to use the novel sphene ceramics as coatings for Ti-6Al-4V. The sol-gel method was used to produce the coatings and the thermal properties, phase composition, microstructure, thickness, surface roughness and adhesion strength of sphene coatings were analyzed by differential thermal analysis-thermal gravity (DTA-TG), X-ray diffraction (XRD), scanning electron microscopy (SEM), atom force microscopy (AFM) and scratch test, respectively. DTA analysis confirmed that the temperature of the sphene phase formation is 875 degrees C and XRD analysis indicated pure sphene coatings were obtained. A uniform structure of the sphene coating was found across the Ti-6Al-4V surface, with a thickness and surface roughness of the coating of about 0.5-1 microm and 0.38 microm, respectively. Sphene-coated Ti-6Al-4V possessed a significantly improved adhesion strength compared to that for HAp coating and their chemical stability was evaluated by testing the profile element distribution and the dissolution kinetics of calcium (Ca) ions after soaking the sphene-coated Ti-6Al-4V in Tris-HCl solution. Sphene coatings had a significantly improved chemical stability compared to the HAp coatings. A layer of apatite formed on the sphene-coated Ti-6Al-4V after they were soaked in simulated body fluids (SBF). Our results indicate that sol-gel coating of novel sphene onto Ti-6Al-4V possessed improved adhesion strength and chemical stability, compared to HAp-coated Ti-6Al-4V prepared under the same conditions, suggesting their potential application as coatings for orthopedic implants.
Ball milling: a green mechanochemical approach for synthesis of nitrogen doped carbon nanoparticles
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3NR02328A
Abstract: Technological and scientific challenges coupled with environmental considerations have attracted a search for robust, green and energy-efficient synthesis and processing routes for advanced functional nanomaterials. In this article, we demonstrate a high-energy ball milling technique for large-scale synthesis of nitrogen doped carbon nanoparticles, which can be used as an electro-catalyst for oxygen reduction reactions after a structural refinement with controlled thermal annealing. The resulting carbon nanoparticles exhibited competitive catalytic activity (5.2 mA cm(-2) kinetic-limiting current density compared with 7.6 mA cm(-2) on Pt/C reference) and excellent methanol tolerance compared to a commercial Pt/C catalyst. The proposed synthesis route by ball milling and annealing is an effective process for carbon nanoparticle production and efficient nitrogen doping, providing a large-scale production method for the development of highly efficient and practical electrocatalysts.
Microencapsulation of lipase produced omega-3 concentrates resulted in complex coacervates with unexpectedly high oxidative stability
Publisher: Elsevier BV
Date: 08-2017
Molecularly engineered graphene surfaces for sensing applications: A review
Publisher: Elsevier BV
Date: 02-2015
DOI: 10.1016/J.ACA.2014.07.031
Abstract: Graphene is scientifically and commercially important because of its unique molecular structure which is monoatomic in thickness, rigorously two-dimensional and highly conjugated. Consequently, graphene exhibits exceptional electrical, optical, thermal and mechanical properties. Herein, we critically discuss the surface modification of graphene, the specific advantages that graphene-based materials can provide over other materials in sensor research and their related chemical and electrochemical properties. Furthermore, we describe the latest developments in the use of these materials for sensing technology, including chemical sensors and biosensors and their applications in security, environmental safety and diseases detection and diagnosis.
Study on triazophos adsorption behavior on the multi-walled carbon nanotubes
Publisher: Desalination Publications
Date: 2017
New Gold Nanostructures for Sensor Applications: A Review
Publisher: MDPI AG
Date: 17-07-2014
DOI: 10.3390/MA7075169
Anchovy oil microcapsule powders prepared using two-step complex coacervation between gelatin and sodium hexametaphosphate followed by spray drying
Publisher: Elsevier BV
Date: 12-2018
Defective Carbon-Doped Boron Nitride Nanosheets for Highly Efficient Electrocatalytic Conversion of N2 to NH3
Publisher: American Chemical Society (ACS)
Date: 15-03-2020
Facile synthesis of graphene oxide hybrids bridged by copper ions for increased conductivity
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TC30180J
Ionic Liquid-Assisted Synthesis of Polyaniline/Gold Nanocomposite and Its Biocatalytic Application
Publisher: Springer Science and Business Media LLC
Date: 15-10-2008
DOI: 10.1007/S11671-008-9182-9
Abstract: In this report, a novel chemical synthesis of polyaniline/gold nanocomposite is explored using ionic liquid (IL) 1-Butyl-3-methylimidazolium hexafluorophosphate. The direct chemical synthesis of polyaniline/gold nanocomposite was initiated via the spontaneous oxidation of aniline by AuCl 4 − in IL. A nearly uniform dispersion of polyaniline/Au particles with a diameter of 450 ± 80 nm was produced by this method, which indicates that this method is more suitable for controlling particle dimensions. It was also found that the electrical conductivity of the polyaniline/gold nanocomposite was more than 100 times higher than that of the pure polyaniline nanoparticles. The polyaniline/gold nanocomposite displays superior function in the biocatalytic activation of microperoxidase-11 because of the high surface area of the assembly and the enhanced charge transport properties of the composite material. We also report the possible application of polyaniline/gold nanocomposite as a H 2 O 2 biosensor.
Ultrasensitive enzyme-free electrochemical immunosensor for microcystin-LR using molybdenum disulfide/gold nanoclusters nanocomposites as platform and Au@Pt core-shell nanoparticles as signal enhancer
Publisher: Elsevier BV
Date: 08-2018
Insight into Catalytic Mechanisms for the Reduction of Nitrophenol via Heterojunctions of Gold Nanoclusters on 2D Boron Nitride Nanosheets
Publisher: Wiley
Date: 04-04-2019
TiO 2 @ phenyl-functionalized mesoporous silica for removal of bisphenol A from water
Publisher: Desalination Publications
Date: 2017
Preparation and characterization of the hydrogen storage activated carbon from coffee shell by microwave irradiation and KOH activation
Publisher: Elsevier BV
Date: 09-2016
Fast colorimetric detection of copper ions using L-cysteine functionalized gold nanoparticles
Publisher: American Scientific Publishers
Date: 02-2007
DOI: 10.1166/JNN.2007.116
Abstract: This communication reports an efficient visual detection method of Cu 2+ by L-cysteine functionalized gold nanoparticles in aqueous solution. Upon exposure to Cu 2+ , the gold nanoparticle solution changed from red to blue, in response to surface plasmon absorption of dispersed and aggregated nanoparticles. This colorimetric sensor allows a rapid quantitative assay of Cu 2+ down to the concentration range of 10 −5 M. Recognition of Cu 2+ and formation of the aggregates are proposed to occur via a 2 : 1 sandwich complex between L-cysteine and Cu 2+ .
Surface functionalization of carbon nanomaterials by self-assembling hydrophobin proteins
Publisher: Wiley
Date: 23-10-2013
DOI: 10.1002/BIP.22146
Abstract: Class I fungal hydrophobins are small surface-active proteins that self-assemble to form hipathic monolayers composed of amyloid-like rodlets. The monolayers are extremely robust and can adsorb onto both hydrophobic and hydrophilic surfaces to reverse their wettability. This adherence is particularly strong for hydrophobic materials. In this report, we show that the class I hydrophobins EAS and HYD3 can self-assemble to form a single-molecule thick coating on a range of nanomaterials, including single-walled carbon nanotubes (SWCNTs), graphene sheets, highly oriented pyrolytic graphite, and mica. Moreover, coating by class I hydrophobin results in a stable, dispersed preparation of SWCNTs in aqueous solutions. No cytotoxicity is detected when hydrophobin or hydrophobin-coated SWCNTs are incubated with Caco-2 cells in vitro. In addition, we are able to specifically introduce covalently linked chemical moieties to the hydrophilic side of the rodlet monolayer. Hence, class I hydrophobins provide a simple and effective strategy for controlling the surfaces of a range of materials at a molecular level and exhibit strong potential for biomedical applications.
A Bunch-like Copper Oxide Nanowire Array as an Efficient, Durable, and Economical Catalyst for the Methanolysis of Ammonia Borane
Publisher: Wiley
Date: 05-01-2018
Attachment of magnetic molecules on a nanoSQUID
Publisher: IOP Publishing
Date: 02-06-2008
DOI: 10.1088/0957-4484/19/28/285303
Abstract: A novel procedure combining monolayer self-assembly with electron beam lithography has been developed for attaching ferritin nanoparticles to a submicron thin-film SQUID (superconducting quantum interference device). After opening a window in the PMMA (polymethylmethacrylate) resist, organic linker molecules are used to attach ferritin to the exposed parts of the gold overlayer of a Nb nanoSQUID. This allows the magnetic nanoparticles to be located optimally as far as magnetic coupling to the nanoSQUID is concerned.
Fabrication of an arbitrary-shaped and nitrogen-doped graphene aerogel for highly compressible all solid-state supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA04917J
Abstract: Herein, we report a new template method for fabricating an arbitrary-shaped compressible nitrogen-doped graphene aerogel (GA).
Graphene nanodots-encaged porous gold electrode fabricated via ion beam sputtering deposition for electrochemical analysis of heavy metal ions
Publisher: Elsevier BV
Date: 2015
Zn-Ni-Co trimetallic carbonate hydroxide nanothorns branched on Cu(OH)2 nanorods array based on Cu foam for high-performance asymmetric supercapacitors
Publisher: Elsevier BV
Date: 10-2019
Synthesis, Characterization, and Multilayer Assembly of pH Sensitive Graphene-Polymer Nanocomposites
Publisher: American Chemical Society (ACS)
Date: 27-04-2010
DOI: 10.1021/LA1001978
Abstract: pH sensitive graphene-polymer composites have been prepared by the modification of graphene basal planes with pyrene-terminated poly(2-N,N'-(dimethyl amino ethyl acrylate) (PDMAEA) and poly(acrylic acid) (PAA) via pi-pi stacking. The pyrene-terminal PDMAEA and PAA were synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization with a pyrene-functional RAFT agent. The graphene-polymer composites were found to demonstrate phase transfer behavior between aqueous and organic media at different pH values. Atomic force microscopy (AFM) analysis revealed that the thicknesses of the graphene-polymer sheets were approximately 3.0 nm when prepared using PDMAEA (M(n): 6800 and PDI: 1.12). The surface coverage of polymer chains on the graphene basal plane was calculated to be 5.3 x 10(-11) mol cm(-2) for PDMAEA and 1.3 x 10(-10) mol cm(-2) for PAA. The graphene-polymer composites were successfully characterized using X-ray photoelectron spectroscopy (XPS), attenuated total reflection infrared (ATR-IR) spectroscopy, and thermogravimetric analysis (TGA). Self-assembly of the two oppositely charged graphene-polymer composites afforded layer-by-layer (LbL) structures as evidenced by high-resolution scanning electron microscopy (SEM) and quartz crystal microbalance (QCM) measurements.
Facile fabrication of supercapacitors with high rate capability using graphene/nickel foam electrode
Publisher: Elsevier BV
Date: 08-2016
Electrochemical Evidences of Chiral Molecule Recognition Using L/D -Cysteine Modified Gold Electrodes
Publisher: Elsevier BV
Date: 05-2017
Controlled synthesis and characterization of 10 nm thick Al2O3 nanowires
Publisher: Elsevier BV
Date: 05-2009
Effect of Different Binders on the Electrochemical Performance of Metal Oxide Anode for Lithium-Ion Batteries
Publisher: Springer Science and Business Media LLC
Date: 30-10-2017
Direct synthesis and strong cathodoluminescence of Al2O3 nanotubes
Publisher: Elsevier BV
Date: 04-2010
On-site determination of Pb2+ and Cd2+ in seawater by double stripping voltammetry with bismuth-modified working electrodes
Publisher: Elsevier BV
Date: 05-2016
Biologically Synthesized and Indole Acetic Acid-Loaded Graphene as Biostimulants for Maize Growth Enhancement
Publisher: American Chemical Society (ACS)
Date: 05-2023
Emerging electrochemical methods at the nanointerface: general discussion
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2FD90003C
A molybdenum disulfide/gold nanorod composite-based electrochemical immunosensor for sensitive and quantitative detection of microcystin-LR in environmental samples
Publisher: Elsevier BV
Date: 06-2017
A Cu(ii)-triggered release system by l-cysteine functionalized gold nanoparticles for “on-demand” molecular delivery and bioimaging in cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1ME00074H
Abstract: Schematic description of GNP– l -Cys–Rh6G2 with Cu( ii ) triggered release.
Flower-like nanosheets directly grown on Co foil as efficient bifunctional catalysts for overall water splitting
Publisher: Elsevier BV
Date: 04-2020
Formation of Molecular Junctions by Single-Entity Collision Electrochemistry
Publisher: American Chemical Society (ACS)
Date: 18-09-2023
Electrochemical metal ion sensors. Exploiting amino acids and peptides as recognition elements
Publisher: MDPI AG
Date: 08-08-2001
DOI: 10.3390/S10300075
Nanobionics-Driven Synthesis of Molybdenum Oxide Nanosheets with Tunable Plasmonic Resonances in Visible Light Regions
Publisher: American Chemical Society (ACS)
Date: 20-12-0020
Thermosensitive Graphene Nanocomposites Formed Using Pyrene-Terminal Polymers Made by RAFT Polymerization
Publisher: Wiley
Date: 07-12-2010
DOI: 10.1002/POLA.23802
Atom Probe Microscopy of Self-Assembled Monolayers: Preliminary Results
Publisher: American Chemical Society (ACS)
Date: 18-03-2010
DOI: 10.1021/LA904459K
Abstract: We have achieved three-dimensional imaging of decanethiol self-assembled monolayers (SAMs) on metal surfaces by atom probe tomography (APT). The present Letter provides preliminary results on Ni [001] and Au [111], shows the analytical potential of APT analysis of SAMs, and details developments in specimen preparation and in data-treatment methodologies. Importantly, the investigation of the mass spectra from analysis of the SAMs revealed no combination of sulfur and hydrogen at the interface between the metal substrates and the organic materials, potentially providing insight about the bonding of the thiols on the substrate.
Cobalt Carbonate Hydroxide Nanowire Array on Ti Mesh: An Efficient and Robust 3D Catalyst for On-Demand Hydrogen Generation from Alkaline NaBH4 Solution
Publisher: Wiley
Date: 09-09-2016
Abstract: In this work, for the first time, a cobalt carbonate hydroxide (Co(CO
Self-assembly of core-satellite gold nanoparticles for colorimetric detection of copper ions
Publisher: Elsevier BV
Date: 11-2013
DOI: 10.1016/J.ACA.2013.09.036
Abstract: Molecule-coated nanoparticles are hybrid materials which can be engineered with novel properties. The molecular coating of metal nanoparticles can provide chemical functionality, enabling assembly of the nanoparticles that are important for applications, such as biosensing devices. Herein, we report a new self-assembly of core-satellite gold nanoparticles linked by a simple amino acid l-Cysteine for biosensing of Cu(2+). The plasmonic properties of core-satellite nano-assemblies were investigated, a new red shifted absorbance peak from about 600 to 800 nm was found, with specific wavelength depending on ratios with assembly of large and small gold nanoparticles. The spectral features obtained using surface-enhanced Raman spectroscopy (SERS) provided strong evidence for the assembly of the Cu(2+) ions to the L-Cysteine molecules leading to the successful formation of the core-satellite Cu(l-Cysteine) complex on the gold surfaces. In addition, a linear relationship between the concentration of mediating Cu(2+) and absorbance of self-assembled gold nanoparticles (GNPs) at 680 nm was obtained. These results strongly address the potential strategy for applying the functionalized GNPs as novel biosensing tools in trace detections of certain metal ions.
Wafer-scale fabrication of a Cu/graphene double-nanocap array for surface-enhanced Raman scattering substrates.
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6CC09642E
Abstract: A novel structure of arrays of Cu/graphene double-nanocaps was developed via a one-step low-temperature chemical vapor deposition (CVD) process. Polystyrene spheres (PSSs) are ingeniously employed as both templates and solid carbon sources. SERS measurements reveal their high sensitivity and stability due to the synergistic effect of Cu and graphene double nanocaps.
Bacteria-Premised Nanobiopesticides for the Management of Phytopathogens and Pests
Publisher: American Chemical Society (ACS)
Date: 24-04-2023
Tunnelling current recognition through core-satellite gold nanoparticles for ultrasensitive detection of copper ions
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4CC09451D
Abstract: The addition of copper ions induces the formation of GNP/ l -cysteine/Cu 2+ / l -cysteine/GNP molecular junctions and generates a significant decrease in the resistance through the networks.
An efficient solvent-and catalyst-free synthesis of bicyclic pyridones with high molecular diversity via cascade reaction
Publisher: The Japan Institute of Heterocyclic Chemistry
Date: 2018
DOI: 10.3987/COM-17-13849
Graphene nanodots encaged 3-D gold substrate as enzyme loading platform for the fabrication of high performance biosensors
Publisher: Elsevier BV
Date: 12-2015
Frontispiece: 2D Active Nanobots Based on Soft Nanoarchitectonics Powered by an Ultralow Fuel Concentration
Publisher: Wiley
Date: 11-2022
Human β-defensin 3-combined gold nanoparticles for enhancement of osteogenic differentiation of human periodontal ligament cells in inflammatory microenvironments
Publisher: Informa UK Limited
Date: 2018
DOI: 10.2147/IJN.S150897
MgCo2O4@NiMn layered double hydroxide core-shell nanocomposites on nickel foam as superior electrode for all-solid-state asymmetric supercapacitors
Publisher: Elsevier BV
Date: 06-2021
Electrochemical determination of Pb2+ based on DNAzyme-triggered rolling circle amplification and DNA-templated silver nanoclusters amplification strategy
Publisher: Elsevier BV
Date: 06-2023
Quantifying Graphene Oxide Reduction Using Spectroscopic Techniques: A Chemometric Analysis
Publisher: SAGE Publications
Date: 10-09-2018
Abstract: The surface chemistry of graphene oxide (GO) can be modified by the chemical reduction of oxygen-containing groups using L-ascorbic acid (L-AA). Being able to “tune” the surface hydrophobicity of GO in a controlled manner, with a well-defined level of reduction, provides a valuable tool for understanding and controlling interactions with hydrophobic surfaces. Numerous analytical and chemical methods have been used to determine the extent of reduction in chemically reduced graphene oxide (CRGO) s les. However, many of these methods are limited by their laborious nature, cost, or lack of sensitivity in resolving oxygen content in s les that have only been reduced for short periods of time, making them inappropriate for rapid use with multiple s les. Here, we have used ultraviolet (UV), Raman, and attenuated total reflection infrared (ATR-IR) spectroscopy to monitor the chemical reduction of GO. These three techniques are simple, rapid, nondestructive, accurate, and widely available. The data set from each technique has been correlated and modeled against a reference data set (carbon to oxygen ratio obtained from elemental analysis) using partial least squares regression (PSLR). Using this approach, the chemical reduction of GO was quantified from UV (r 2 = 0.983, RMSE CV = 0.049), Raman (r 2 = 0.961, RMSE CV = 0.073) and ATR-IR (r 2 = 0.993, RMSE CV = 0.032) data. ATR-IR enabled identification of the different oxygen-containing groups on GO, and coupled with chemometric modeling, provides an excellent approach for the routine quantitative analysis of the chemical reduction of GO.
Self-supported Cu(OH)(2)@Co2CO3(OH)(2) core-shell nanowire array as a robust catalyst for ammonia-borane hydrolysis
Publisher: IOP Publishing
Date: 21-12-2017
DOI: 10.1088/1361-6528/28/4/045606
Abstract: High hydrogen content and long-term stability in aqueous solutions make ammonia-borane (AB) a promising hydrogen-storage material. It is highly attractive but still challenging to develop efficient catalysts for real-time and controllable hydrogen release from AB solution under mild conditions. Herein, we describe the use of a three-dimensional hierarchical Cu(OH)
Characterization and Molecular Mechanism of Peptide-Conjugated Gold Nanoparticle Inhibiting p53-HDM2 Interaction in Retinoblastoma
Publisher: Elsevier BV
Date: 12-2017
Nanogold Flower‐Inspired Nanoarchitectonics Enables Enhanced Light‐to‐Heat Conversion Ability for Rapid and Targeted Chemo‐Photothermal Therapy of a Tumor
Publisher: Wiley
Date: 15-02-2019
Abstract: Chemo-photothermal therapy has become a promising tool for clinical noninvasive tumor therapy, which is able to efficiently avoid drug resistance and other side effects from chemical anticarcinogenic drugs. The ability to selectively fast-heat tumor tissues over surrounding compartments is of fundamental importance and makes effective treatment of tumor margins and complex tumor geometries. Currently existing chemo-photothermal methods mainly show slow light-to-heat conversion with increased temperature up to around 45-57 °C for 5-20 min or a longer time in vitro under regular near-infrared laser irradiation, and during tumor therapy, worse performance in temperature changes are obtained due to the much longer penetration distance in vivo. Herein, nanoarchitectonics with excellent chemo-photothermal performance are first proposed for tumors via in situ decoration of nanogold flowers on graphene oxide surface with further modification of the aptamer molecule. Even with simple synthesis processes, these nanoarchitectonics demonstrate impressive increased temperatures up to 85 °C in just 2 min under 808 nm laser irradiation with regular power density. Due to the fast light-to-heat conversion ability and specific binding effect between the aptamer and tumor cells, the designed nanocarrier shows a rapid and target therapy system with a targeted chemo-photothermal tumor treatment.
One-step electrochemical strategy for in-situ synthesis of S,N-codoped graphene as metal-free catalyst for oxygen reduction reaction
Publisher: Elsevier BV
Date: 08-2201
Smart Multifunctional Fluids for Lithium Ion Batteries: Enhanced Rate Performance and Intrinsic Mechanical Protection
Publisher: Springer Science and Business Media LLC
Date: 21-08-2013
DOI: 10.1038/SREP02485
Single molecule conductance through rigid norbornylogous bridges with zero average curvature
Publisher: American Chemical Society (ACS)
Date: 28-05-2008
DOI: 10.1021/JP802328B
Graphene oxide decorated diatom silica particles as new nano-hybrids: towards smart natural drug microcarriers
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TB21051K
Synthesis and characterization of surface-enhanced Raman-scattered gold nanoparticles
Publisher: Informa UK Limited
Date: 11-2013
DOI: 10.2147/IJN.S49447
One-step synthesis of graphene quantum dots from defective CVD graphene and their application in IGZO UV thin film phototransistor
Publisher: Elsevier BV
Date: 04-2016
Preparation of graphene/polymer composites by direct exfoliation of graphite in functionalised block copolymer matrix
Publisher: Elsevier BV
Date: 2013
Frontispiz: 2D Active Nanobots Based on Soft Nanoarchitectonics Powered by an Ultralow Fuel Concentration
Publisher: Wiley
Date: 02-2022
A novel graphene nanodots inlaid porous gold electrode for electrochemically controlled drug release
Publisher: Elsevier BV
Date: 2016
DOI: 10.1016/J.TALANTA.2015.09.020
Abstract: A uniform graphene nanodots inlaid porous gold electrode was prepared via ion beam sputtering deposition (IBSD) and mild corrosion chemistry. HRTEM, SEM, AFM and XPS analyses revealed the successful fabrication of graphene nanodots inlaid porous gold electrode. The as-prepared porous electrode was used as π-orbital-rich drug loading platform to fabricate an electrochemically controlled drug release system with high performance. π-orbital-rich drugs with amino mioety, like doxorubicin (DOX) and tetracycline (TC), were loaded into the graphene nanodots inlaid porous gold electrode via non-covalent π-π stacking interaction. The amino groups in DOX and TC can be easily protonated at acidic medium to become positively-charged NH3(+), which allow these drug molecules to be desorbed from the porous electrode surface via electrostatic repulsion when positive potential is applied at the electrode. The drug loading and release experiment indicated that this graphene nanodots inlaid porous gold electrode can be used to conveniently and efficiently control the drug release electrochemically. Not only did our work provide a benign method to electrochemically controlled drug release via electrostatic repulsion process, it also enlighten the promising practical applications of micro electrode as a drug carrier for precisely and efficiently controlled drug release via embedding in the body.
Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy: An analytical technique to understand therapeutic responses at the molecular level
Publisher: Springer Science and Business Media LLC
Date: 16-11-2015
DOI: 10.1038/SREP16649
Abstract: Rapid monitoring of the response to treatment in cancer patients is essential to predict the outcome of the therapeutic regimen early in the course of the treatment. The conventional methods are laborious, time-consuming, subjective and lack the ability to study different biomolecules and their interactions, simultaneously. Since mechanisms of cancer and its response to therapy is dependent on molecular interactions and not on single biomolecules, an assay capable of studying molecular interactions as a whole, is preferred. Fourier Transform Infrared (FTIR) spectroscopy has become a popular technique in the field of cancer therapy with an ability to elucidate molecular interactions. The aim of this study, was to explore the utility of the FTIR technique along with multivariate analysis to understand whether the method has the resolution to identify the differences in the mechanism of therapeutic response. Towards achieving the aim, we utilized the mouse xenograft model of retinoblastoma and nanoparticle mediated targeted therapy. The results indicate that the mechanism underlying the response differed between the treated and untreated group which can be elucidated by unique spectral signatures generated by each group. The study establishes the efficiency of non-invasive, label-free and rapid FTIR method in assessing the interactions of nanoparticles with cellular macromolecules towards monitoring the response to cancer therapeutics.
Protein electrochemistry using graphene-based nano-assembly: An ultrasensitive electrochemical detection of protein molecules via nanoparticle-electrode collisions
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4CC03384A
Abstract: We describe a new electrochemical detection approach towards single protein molecules (microperoxidase-11, MP-11), which are attached to the surface of graphene nanosheets. The non-covalently functionalized graphene nanosheets exhibit enhanced electroactive surface area, where lified redox current is produced when graphene nanosheets collide with the electrode.
Monolithically integrated CoP nanowire array: An on/off switch for effective on-demand hydrogen generation via hydrolysis of NaBH 4 and NH 3 BH 3
Publisher: Springer Science and Business Media LLC
Date: 08-11-2017
Inside Back Cover: Boron Nitride Nanosheets Improve Sensitivity and Reusability of Surface-Enhanced Raman Spectroscopy (Angew. Chem. Int. Ed. 29/2016)
Publisher: Wiley
Date: 20-05-2016
Ultrafast generation of highly crystalline graphene quantum dots from graphite paper via laser writing
Publisher: Elsevier BV
Date: 07-2021
MOF derived Ni-Co-S nanosheets on electrochemically activated carbon cloth via an etching/ion exchange method for wearable hybrid supercapacitors
Publisher: Elsevier BV
Date: 09-2019
Direct transfer of graphene and application in low-voltage hybrid transistors
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6RA26452B
Abstract: Scotch tape assisted direct transfer of graphene is presented. Transferred graphene can act as a carrier transport layer in In 2 O 3 /graphene/ZrO 2 transistor.
Monitoring the Dynamic Process of Formation of Plasmonic Molecular Junctions during Single Nanoparticle Collisions
Publisher: Wiley
Date: 03-2018
Abstract: The capability to study the dynamic formation of plasmonic molecular junction is of fundamental importance, and it will provide new insights into molecular electronics lasmonics, single-entity electrochemistry, and nanooptoelectronics. Here, a facile method to form plasmonic molecular junctions is reported by utilizing single gold nanoparticle (NP) collision events at a highly curved gold nanoelectrode modified with a self-assembled monolayer. By using time-resolved electrochemical current measurement and surface-enhanced Raman scattering spectroscopy, the current changes and the evolution of interfacial chemical bonding are successfully observed in the newly formed molecular tunnel junctions during and after the gold NP "hit-n-stay" and "hit-n-run" collision events. The results lead to an in-depth understanding of the single NP motion and the associated molecular level changes during the formation of the plasmonic molecular junctions in a single NP collision event. This method also provides a new platform to study molecular changes at the single molecule level during electron transport in a dynamic molecular tunnel junction.
Promising biomass-derived activated carbon and gold nanoparticle nanocomposites as a novel electrode material for electrochemical detection of rutin
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA16804C
Abstract: A novel electrochemical sensor for rutin was developed based on peanut shell-derived activated carbon and gold nanoparticles composite modified glassy carbon electrode.
Novel reversible and switchable electrolytes based on magneto-rheology
Publisher: Springer Science and Business Media LLC
Date: 23-10-2015
DOI: 10.1038/SREP15663
Abstract: Replacing organic liquid electrolytes with solid electrolytes has led to a new perspective on batteries, enabling high-energy battery chemistry with intrinsically safe cell designs. However, most solid/gel electrolytes are easily deformed under extreme deformation, leakage and/or short-circuiting can occur. Here, we report a novel magneto-rheological electrolyte (MR electrolyte) that responds to changes in an external magnetic field the electrolyte exhibits low viscosity in the absence of a magnetic field and increased viscosity or a solid-like phase in the presence of a magnetic field. This change from a liquid to solid does not significantly change the conductivity of the MR electrolyte. This work introduces a new class of magnetically sensitive solid electrolytes that can enhance impact resistance and prevent leakage from electronic devices through reversible active switching of their mechanical properties.
Controllable graphene oxide mediated efficient electron transfer pathways across self-assembly monolayers: A new class of graphene based electrodes
Publisher: Elsevier BV
Date: 08-2016
Additive-Free MXene Liquid Crystals and Fibers
Publisher: American Chemical Society (ACS)
Date: 06-02-2020
Benchmarking Three Ruthenium Phosphide Phases for Electrocatalysis of the Hydrogen Evolution Reaction: Experimental and Theoretical Insights
Publisher: Wiley
Date: 13-05-2019
Abstract: The outstanding electrocatalytic activity of ruthenium (Ru) phosphides toward the hydrogen evolution reaction (HER) has received wide attention. However, the effect of the Ru phosphide phase on the HER performance remains unclear. Herein, a two-step method was developed to synthesize nanoparticles of three types of Ru phosphides, namely, Ru
Transforming doxorubicin into a cancer stem cell killer via EpCAM aptamer-mediated delivery
Publisher: Ivyspring International Publisher
Date: 2017
DOI: 10.7150/THNO.20168
Stepwise synthesis of gly-gly-his on gold surfaces modified with mixed self-assembled monolayers
Publisher: American Chemical Society (ACS)
Date: 10-12-2005
DOI: 10.1021/LA0482599
Abstract: Peptide-modified electrode surfaces have been shown to have excellent recognition properties for metal ions. An efficient method of screening a potential peptide for its selectivity for a given metal would involve the synthesis of the peptide directly on the electrode surface. This paper outlines a procedure in which the tripeptide Gly-Gly-His was synthesized one amino acid at a time on a gold surface modified with a self-assembled monolayer of the mixed alkanethiolates 3-mercaptopropionic acid (MPA) and 3-mercaptopropane (MP). Electrochemistry and high-resolution mass spectrometry were used to elucidate the structure of the adsorbed species and follow the synthesis. The amino acids can be attached only to MPA, but the presence of a diluting unreactive molecule of MP reduces steric crowding about the reaction center. The maximum coverage of synthesized tripeptide occurs at a ratio of MPA/MP of 1:1.
Mechanochemistry: A force in disguise and conditional effects towards chemical reactions
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0CC06581A
Abstract: Controlling mechanochemistry by varying milling conditions.
A facile "graft from" method to prepare molecular-level dispersed graphene-polymer composites
Publisher: Wiley
Date: 03-08-2012
DOI: 10.1002/POLA.26264
Controlling enzyme function through immobilisation on graphene, graphene derivatives and other two dimensional nanomaterials
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TB00313K
Abstract: Controlling enzyme function through immobilisation on graphene, graphene derivatives and other two dimensional nanomaterials.
Lipase-catalysed synthesis of palm oil-omega-3 structured lipids
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9FO00668K
Abstract: Candida antarctica lipase A was applied to selectively remove saturated fatty acids from palm oil. Rhizomucor miehei lipase was then used to add EPA or ALA into the partially hydrolyzed palm oil to produce new palm oil structured lipids containing approximately 30% omega-3 fatty acids.
Self-assembled monolayers into the 21st century: Recent advances and applications
Publisher: Wiley
Date: 02-2003
Effect of Triton X-100 on the Activity and Selectivity of Lipase Immobilized on Chemically Reduced Graphene Oxides
Publisher: American Chemical Society (ACS)
Date: 21-07-2021
Graphene quantum dots directly generated from graphite via magnetron sputtering and the application in thin-film transistors
Publisher: Elsevier BV
Date: 07-2015
Graphene quantum dots and Nafion composite as an ultrasensitive electrochemical sensor for the detection of dopamine
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6AY01254J
Abstract: A graphene quantum dots-Nafion composite as a novel electrode material was developed for ultrasensitive detection of dopamine with a low detection limit of 0.45 nM and a wide linear range of 5 nM to 100 μM.
Controllable corrugation of chemically converted graphene sheets in water and potential application for nanofiltration
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1CC10720H
Abstract: A combination of AFM, SEM and permeation experiments suggests that the litude of corrugation of chemically converted graphene (CCG) sheets in water can be readily controlled by hydrothermal treatment, leading to a new class of permeation-tuneable nanofiltration membranes.
Self-Assembly of Gold Nanowires along Carbon Nanotubes for Ultrahigh-Aspect-Ratio Hybrids
Publisher: American Chemical Society (ACS)
Date: 04-05-2011
DOI: 10.1021/CM1033645
Nano–Enabled sensors for detection of arsenic in water
Publisher: Elsevier BV
Date: 2021
Evidence for the direct interaction between methylene blue and guanine bases using DNA-modified carbon paste electrodes
Publisher: Wiley
Date: 10-2002
DOI: 10.1002/1521-4109(200210)14:18<1299::AID-ELAN1299>3.0.CO;2-Y
Direct Observation of Amide Bond Formation in a Plasmonic Nanocavity Triggered by Single Nanoparticle Collisions
Publisher: American Chemical Society (ACS)
Date: 24-06-2021
DOI: 10.1021/JACS.1C02426
Plasma-assisted synthesis of hierarchical defect N-doped iron–cobalt sulfide@Co foam as an efficient bifunctional electrocatalyst for overall water splitting
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3NJ00675A
Abstract: N-doped CoFeS was synthesized via an ion exchange method to prepare a precursor, followed by sulphidation and plasma-assisted engraving in nitrogen gas.
The Influence of Inflammatory Cytokines on the Proliferation and Osteoblastic Differentiation of MSCs
Publisher: Bentham Science Publishers Ltd.
Date: 16-06-2017
Opening Lids: Modulation of Lipase Immobilization by Graphene Oxides
Publisher: American Chemical Society (ACS)
Date: 22-06-2016
Soft Nanoarchitectonics for Enantioselective Biosensing
Publisher: American Chemical Society (ACS)
Date: 19-02-2020
Green Fabrication of Agglomeration-Reductive and Electrochemical-Active Reduced Graphene Oxide/Polymerized Proanthocyanidins Electrode for High-Performance Supercapacitor
Publisher: American Chemical Society (ACS)
Date: 09-01-2023
Detection and imaging of Hg(II) in vivo using glutathione-functionalized gold nanoparticles
Publisher: Beilstein Institut
Date: 23-06-2022
DOI: 10.3762/BJNANO.13.46
Abstract: The optical and biological properties of functionalized gold nanoparticles (GNPs) have been widely used in sensing applications. GNPs have a strong binding ability to thiol groups. Furthermore, thiols are used to bind functional molecules, which can then be used, for ex le, to detect metal ions in solution. Herein, we describe 13 nm GNPs functionalized by glutathione (GSH) and conjugated with a rhodamine 6G derivative (Rh6G2), which can be used to detect Hg(II) in cells. The detection of Hg 2+ ions is based on an ion-catalyzed hydrolysis of the spirolactam ring of Rh6G2, leading to a significant change in the fluorescence of GNPs-GSH-Rh6G2 from an “OFF” to an “ON” state. This strategy is an effective tool to detect Hg 2+ ions. In cytotoxicity experiments, GNPs-GSH-Rh6G2 could penetrate living cells and detect mercury ions through the fluorescent “ON” form.
Double stranded DNA-templated copper nanoclusters as a novel fluorescent probe for label-free detection of rutin
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9AY01023H
Abstract: In this study, we developed a simple, sensitive, low-cost and label-free method to detect rutin by using double-stranded DNA-templated copper nanoclusters (dsDNA-CuNCs) as a fluorescent probe.
Self-assembly of functional, amphipathic amyloid monolayers by the fungal hydrophobin EAS
Publisher: Proceedings of the National Academy of Sciences
Date: 23-01-2012
Abstract: The hydrophobin EAS from the fungus Neurospora crassa forms functional amyloid fibrils called rodlets that facilitate spore formation and dispersal. Self-assembly of EAS into fibrillar rodlets occurs spontaneously at hydrophobic:hydrophilic interfaces and the rodlets further associate laterally to form hipathic monolayers. We have used site-directed mutagenesis and peptide experiments to identify the region of EAS that drives intermolecular association and formation of the cross-β rodlet structure. Transplanting this region into a nonamyloidogenic hydrophobin enables it to form rodlets. We have also determined the structure and dynamics of an EAS variant with reduced rodlet-forming ability. Taken together, these data allow us to pinpoint the conformational changes that take place when hydrophobins self-assemble at an interface and to propose a model for the hipathic EAS rodlet structure.
In situ generation of CoS1.097 nanoparticles on S/N co-doped graphene/carbonized foam for mechanically tough and flexible all solid-state supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA04307H
Abstract: Flexible, high-strength and free-standing CoS 1.097 /GF/KOH/PVA composite films are synthesized by a simple squeeze-dip-coating and sulfidation process and utilized as positive electrode for asymmetric electrochemical capacitor with ultrahigh specific capacitance, high energy density and excellent mechanical stability.
Quantifying the Tunable Conjugated Area of Graphene Oxide by Using Pyrene as a Fluorescent Probe
Publisher: Wiley
Date: 18-11-2016
Abstract: The determination of oxygenous groups, conjugated area ratio, and reduction efficiency of graphene oxide (GO) is a difficult task because of its heterogeneous structure. Herein, a novel approach is described for a detailed understanding of the surface chemistry of GO by using pyrene as a fluorescent probe through π-π stacking interactions.
Using Molecular Level Modification To Tune the Conductivity of Graphene Papers
Publisher: American Chemical Society (ACS)
Date: 14-08-2012
DOI: 10.1021/JP304374R
A novel method to decorate Au clusters onto graphene via a mild co-reduction process for ultrahigh catalytic activity
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6TA08284J
Abstract: A mild co-reduction strategy is exploited to fabricate Au clusters on reduced graphene oxide with low Au loadings for high catalytic activity.
Simple and signal-off electrochemical biosensor for mercury(II) based on thymine-mercury-thymine hybridization directly on graphene
Publisher: Elsevier BV
Date: 07-2015
Photocatalytic degradation of bisphenol A by HMS/g-C 3 N 4 composite
Publisher: Informa UK Limited
Date: 25-07-2016
Enzyme-free fluorescent detection of microcystin-LR using hairpin DNA-templated copper nanoclusters as signal indicator
Publisher: Elsevier BV
Date: 09-2019
DOI: 10.1016/J.TALANTA.2019.05.013
Abstract: Microcystin-LR (MC-LR) is a potent hepatotoxin that is often associated with blooms of cyanobacteria. The analysis of trace MC-LR plays important role in environmental and health fields. Herein, we developed a low-cost and enzyme-free detection method of MC-LR by using hairpin DNA-templated copper nanoclusters (hpDNA-CuNCs) as fluorescent probe. The hpDNA-template was designed and fabricated by a MC-LR aptamer loop and a double strand stem, which can specifically recognize target MC-LR with strong affinity. The AT-rich and complementary double strand stem serves as a template for the formation of CuNCs. The formed fluorescent sensing probe of hpDNA-CuNCs exhibits maximum emission wavelength at 575 nm. Upon the addition of target MC-LR into the hpDNA-CuNCs, we observed fluorescence was quenched considerably due to the high affinity between MC-LR and hpDNA aptamer strand loop, which indicated a conformational change of hairpin probe from the stem-loop DNA structure to single-stranded DNA. Then, the change of fluorescence intensity can be used to monitor the concentration of MC-LR from 0.005 to 1200 μg L
One-step preparation of graphene nanosheets via ball milling of graphite and the application in lithium-ion batteries
Publisher: Springer Science and Business Media LLC
Date: 06-01-2016
In situ embedding of cobalt sulfide quantum dots among transition metal layered double hydroxides for high performance all-solid-state asymmetric supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA06706K
Abstract: Layered double hydroxides (LDHs) are widely used as cathode materials for supercapacitors (SCs), thanks to their many advantages.
In vitro studies of cells grown on the superconductor PrOxFeAs
Publisher: Elsevier BV
Date: 06-2009
DOI: 10.1016/J.MICRON.2008.12.005
Abstract: The recent discovery of arsenic-based high temperature superconductors has reignited interest in the study of superconductor: biological interfaces. However, the new superconductor materials involve the chemistry of arsenic and their toxicity remains unclear [Hand, E., 2008. Nature 452 (24), 922]. In this study the possible adverse effects of this new family of superconductors on cells have been examined. Cell culture studies in conjunction with microscopy and viability assays were employed to examine the influence of arsenic-based superconductor PrO(x)FeAs (x=0.75) material in vitro. Imaging data revealed that cells were well adhered and spread on the surface of the superconductor. Furthermore, cytotoxicity studies showed that cells were unaffected during the time-course of the experiments, providing support for the biocompatibility aspects of PrO(x)FeAs-based superconductor material.
Highly selective detection of formaldehyde and its analogs in clams based on unique and specific conjugation reactions via ultraviolet-visible absorptions
Publisher: Elsevier BV
Date: 08-2023
Well-controlled preparation of evenly distributed nanoporous HOPG surface via diazonium salt assisted electrochemical etching process
Publisher: Elsevier BV
Date: 06-2016
Ammonia nitrogen removal from aqueous solution using functionalized zeolite columns
Publisher: Informa UK Limited
Date: 23-08-2014
The study of adsorption mechanism of mixed pesticides prometryne-acetochlor in the soil-water system
Publisher: Elsevier BV
Date: 08-2015
MXene: a potential candidate for yarn supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7NR06619H
Abstract: By using MXene as active material and PEDOT-PSS as conductive binder, this work achieves yarn supercapacitors with excellent length capacitance.
One-side non-covalent modification of CVD graphene sheet using pyrene-terminated PNIPAAm generated via RAFT polymerization for the fabrication of thermo-responsive actuators
Publisher: Elsevier BV
Date: 02-2017
A nitrogenous pre-intercalation strategy for the synthesis of nitrogen-doped Ti3C2Tx MXene with enhanced electrochemical capacitance
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0TA11907E
Abstract: A two-step pre-intercalation strategy is developed, using ammonium citrate as an all-in-one intercalant, antioxidant and nitrogen source, for producing nitrogen-doped Ti 3 C 2 T x MXene with improved electrochemical capacitance and high-rate performance.
Analysis of residues of prometryne and acetochlor in soil-water system by solid-phase extraction and gas chromatography/mass spectrometry
Publisher: Informa UK Limited
Date: 23-08-2014
Real-time electrochemical monitoring of covalent bond formation in solution via nanoparticle-electrode collisions
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5CC06228D
Abstract: We describe an alternative electrochemical technique to monitor covalent bond formation in real-time using nanoparticle–electrode collisions.
Simple and cost-effective determination of ciprofloxacin hydrochloride by electrical micro-titration
Publisher: Elsevier BV
Date: 07-2017
Graphene/tri-block copolymer composites prepared via RAFT polymerizations for dual controlled drug delivery via pH stimulation and biodegradation
Publisher: Elsevier BV
Date: 08-2015
2D Active Nanobots Based on Soft Nanoarchitectonics Powered by an Ultralow Fuel Concentration
Publisher: Wiley
Date: 10-01-2022
Abstract: Enzyme catalysis to power micro/nanomotors has received tremendous attention because of the vast potential in applications ranging from biomedicine to environmental remediation. However, the current design is mainly based on a complex three‐dimensional (3D) architecture, with limited accessible surface areas for the catalytic sites, and thus requires a higher fuel concentration to achieve active motion. Herein we report for the first time an enzyme‐powered 2D nanobot, which was designed by a facile strategy based on soft nanoarchitectonics for active motion at an ultralow fuel concentration (0.003 % H 2 O 2 ). The 2D nanobots exhibited efficient positive chemotactic behavior and the ability to swim against gravity by virtue of solutal buoyancy. As a proof‐of‐concept, the 2D nanobots showed an excellent capability for “on‐the‐fly” removal of methylene blue (MB) dye with an efficiency of 85 %.
Construction of Cu7KS4@NixCo1–x(OH)2 Nano-Core–Shell Structures with High Conductivity and Multi-Metal Synergistic Effect for Super
Publisher: American Chemical Society (ACS)
Date: 22-07-2022
Abstract: Reasonable design of materials with complex nanostructures and erse chemical compositions is of great significance in the field of energy storage. Cu
Epithelial cell adhesion molecule aptamer functionalized PLGA-lecithin-curcumin-PEG nanoparticles for targeted drug delivery to human colorectal adenocarcinoma cells
Publisher: Informa UK Limited
Date: 02-2014
DOI: 10.2147/IJN.S59779
One-Step Synthesis of Boron Nitride Quantum Dots: Simple Chemistry Meets Delicate Nanotechnology
Publisher: Wiley
Date: 29-11-2016
Abstract: Herein, a conceptually new and straightforward aqueous route is described for the synthesis of hydroxyl- and amino-functionalized boron nitride quantum dots (BNQDs) with quantum yields (QY) as high as 18.3 % by using a facile bottom-up approach, in which a mixture of boric acid and ammonia solution was hydrothermally treated in one pot at 200 °C for 12 h. The functionalized BNQDs, with excellent photoluminescence properties, could be easily dispersed in an aqueous medium and applied as fluorescent probes for the detection of ferrous (Fe
Graphene-Oxide-Based Enzyme Nanoarchitectonics for Substrate Channeling
Publisher: Wiley
Date: 07-12-2017
Abstract: The controlled spatial organization or compartmentalization of multi-enzyme cascade reactions to transfer a substrate from one enzyme to another for substrate channeling on scaffolds has sparked increasing interest in recent years. Here, we use graphene oxides to study the dependence of the activity of cascade reactions in a closely packed, randomly immobilized enzyme system on a 2 D scaffold. We first observe that the hydrophobicity of graphene oxides and various enzyme architectures for co-immobilized systems are important attributes for achieving high product-conversion rates. A transient time close to 0 s can be achieved if enzymes are randomly immobilized close to one another, owing to direct molecular channeling. This contributes to overcoming complications regarding control of the spatial arrangement of the enzymes. Furthermore, a fabricated bienzyme paper can be used for glucose detection with high stability, reusability, and enhanced substrate channeling. Our findings provide new guidance for enzyme orientation on 2 D scaffolds, which may be extrapolated to other multienzyme cascade systems.
Parameters Important in Fabricating Enzyme Electrodes Using Self-Assembled Monolayers of Alkanethiols
Publisher: Springer Science and Business Media LLC
Date: 2001
DOI: 10.2116/ANALSCI.17.3
Abstract: The fabrication of enzyme electrodes using self-assembled monolayers (SAMs) has attracted considerable interest because of the spatial control over the enzyme immobilization. A model system of glucose oxidase covalently bound to a gold electrode modified with a SAM of 3-mercaptopropionic acid was investigated with regard to the effect of fabrication variables such as the surface topography of the underlying gold electrode, the conditions during covalent attachment of the enzyme and the buffer used. The resultant monolayer enzyme electrodes have excellent sensitivity and dynamic range which can easily be adjusted by controlling the amount of enzyme immobilized. The major drawback of such electrodes is the response which is limited by the kinetics of the enzyme rather than mass transport of substrates. Approaches to bringing such enzyme electrodes into the mass transport limiting regime by exploiting direct electron transfer between the enzyme and the electrode are outlined.
Carbon nanotubes for biological and biomedical applications
Publisher: IOP Publishing
Date: 12-09-2007
Analysis of self-assembled monolayer interfaces by electrospray mass spectrometry: A gentle approach
Publisher: American Chemical Society (ACS)
Date: 28-10-2003
DOI: 10.1021/AC0345897
Abstract: A general mass spectrometry technique for the characterization of alkanethiol-modified surfaces is presented. Alkanethiol self-assembled onto a gold surface (in this case, peptides were attached to the gold surface via a thiolate bond) was reductively desorbed in 0.05 M KOH in the presence of octadecyl-derivatized silica gel. The peptide adsorbed onto the silica gel, whereupon it could be filtered, washed to remove any salts, and then eluted using a mixture of 4:1 v/v methanol/water. The eluant containing the peptide was injected into a Fourier transform ion-cyclotron resonance mass spectrometer (FTICR/MS) via electrospray ionization. The spectrum showed no fragmentation of the peptide, demonstrating the gentleness of the technique. This simple procedure is not limited to FTICR/MS and could be adapted to other mass spectrometers.
Redox voltammetry of sub-parts per billion levels of cu2+at polyaspartate-modified gold electrodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2001
DOI: 10.1039/B102898G
Graphene and Related Materials in Electrochemical Sensing
Publisher: Wiley
Date: 23-03-2011
Probing the tunable surface chemistry of graphene oxide
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5CC02518D
Abstract: Detailed understanding of surface chemistry of graphene oxide (GO) has been explored by probing the interactions transitions on GO/[Ru(bpy) 3 ] 2+ surface.
RAFT controlled synthesis of graphene/polymer hydrogel with enhanced mechanical property for pH-controlled drug release
Publisher: Elsevier BV
Date: 2014
Understanding disability and the ‘social determinants of health’: how does disability affect peoples’ social determinants of health?
Publisher: Informa UK Limited
Date: 07-12-2018
DOI: 10.1080/09638288.2016.1258090
Abstract: The purpose of this study was to investigate how an in idual's social determinants of health are affected by the acquisition of physical disability in adulthood. The secondary aim was to report the described facilitators and barriers to living with a disability. This qualitative study used an exploratory, descriptive approach. Nine in iduals with a neurologically derived disability were purposively recruited from a rehabilitation center in northern Queensland. Participation in the study involved semi-structured interviews. QSR NVivo was used for the data analysis process. Changes to social determinants of health resulting from the acquisition of disability had substantial flow-on consequences in all aspects of life for the in idual and those close to them. Income had the greatest influence over the other social determinant of health. Following the acquisition of disability, the reduced inflow and increased outflow of finances had subsequent negative effects on housing, transport and social interactions, and also personal relationships. When considering changes to the social determinants of health resulting from disability acquisition, it is impractical to view these changes and those affected in isolation. Consideration of this multidimensional effect on life associated with the acquisition of disability will be useful in disability research, advocacy and support services. Implications for Rehabilitation Social determinants of health are known to have a direct influence on health status. As social determinants of health decrease, morbidity and mortality rates increase. Following the acquisition of disability, there is a decline in social determinants of health. This decline affects quality of life for in iduals' with a disability, and those closest to them. The effects of declining social determinants of health may inhibit the rehabilitation process. Thus, it is important to acknowledge the multifaceted impact the acquisition of disability has on peoples' lives, and the consequences this may have for their rehabilitation.
A switch-based biosensor for the detection and imaging of Hg(II) in vivo by glutathione functionalized gold nanoparticles
Publisher: Beilstein Institut
Date: 05-04-2022
Abstract: The optical and biological properties of the tunable functionalized gold nanoparticles (GNPs) tuned have been widely used in the sensing applications. GNPs have a strong binding ability to sulfhydryl groups of thiols. Furthermore, thiols is used as mediators to modify functional molecules to adjust their performance, which can be used to detect metal ions in solution. Herein, we demonstrated the 13 nm GNPs were functionalized by glutathione (GSH) and conjugated by rhodamine 6G derivatives (Rh6G2) which can be used to detect of Hg(II) in cells. The detection of Hg 2+ is based on the ion-catalyzed hydrolysis reactions of the spiroamide ring of Rh6G2, leading to a significant change in the fluorescence of GNPs-GSH-Rh6G2 from “OFF” to “ON” due to the triggered release. The designed strategy is an effective tool to detect Hg 2+ . In cytotoxicity experiments, GNPs-GSH-Rh6G2 can penetrate living cells and recognize mercury ions through the fluorescent "ON" form.
Design of Enzyme Micelles with Controllable Concavo‐Convex Micromorphologies for Highly Enhanced Stability and Catalytical Activity
Publisher: Wiley
Date: 15-01-2018
Abstract: Concavo-convex micelles with controllable sizes and nanostructures are prepared via self-assembling polymer-enzyme (e.g., shellac enzyme) conjugates with heterogeneous polymer chains, which exhibit higher enzyme stability (300%) and bioactivity (760%) comparing with the well-defined ones. The applied hiphilic and negatively charged copolymer, poly (methyl methacrylate)-block-poly (sodium p-styrene sulfonate), is synthesized via reversible addition-fragmentation chain transfer polymerization to modify shellac enzyme and immobilize the enzyme bioactivity inducer by covalent conjugation and electrostatic attraction, respectively. The degradation test of catechol confirms the application potential of as-prepared micelles as an efficient and economical decontaminant.
The influence of 2D nanomaterials on electron transfer across molecular thin films
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9ME00008A
Abstract: Design and formation of electron transfer pathways across self-assembled monolayers by the hydrophobic attachment of BN-NH 2 and MoS 2 nanosheets.
Boron Nitride Nanosheets Improve Sensitivity and Reusability of Surface-Enhanced Raman Spectroscopy
Publisher: Wiley
Date: 26-04-2016
Abstract: Surface enhanced Raman spectroscopy (SERS) is a useful multidisciplinary analytic technique. However, it is still a challenge to produce SERS substrates that are highly sensitive, reproducible, stable, reusable, and scalable. Herein, we demonstrate that atomically thin boron nitride (BN) nanosheets have many unique and desirable properties to help solve this challenge. The synergic effect of the atomic thickness, high flexibility, stronger surface adsorption capability, electrical insulation, impermeability, high thermal and chemical stability of BN nanosheets can increase the Raman sensitivity by up to two orders, and in the meantime attain long-term stability and extraordinary reusability not achievable by other materials. These advances will greatly facilitate the wider use of SERS in many fields.
Determination of Ascorbic Acid by a Gold–Zinc Oxide Nanoparticle-Modified Glassy Carbon Electrode
Publisher: Informa UK Limited
Date: 29-02-2016
Cobalt/Nickel Ions-Assisted Synthesis of Laminated CuO Nanospheres Based on Cu(OH)2 Nanorod Arrays for High-Performance Supercapacitors
Publisher: American Chemical Society (ACS)
Date: 23-12-2019
Abstract: The development for environmentally friendly energy conversion and storage equipment has given rise to tremendous research efforts as a result of the growing requirements for environmental friendly resources and the rapid consumption of traditional fossil fuel. Herein, a novel hierarchical CoO/NiO-Cu@CuO heterostructure is successfully devised and synthesized. Cobalt/nickel ions are used to generate novel CoO/NiO-doped laminated CuO nanospheres through the facile in situ wet oxidation combined with cation exchange and calcination strategies. As a result, the electrochemical supercapacitance of the as-prepared CoO/NiO-Cu@CuO electrode can reach 875 C cm
Immobilisation of microperoxidase-11 into layered MoO3 for applications of enzymatic conversion
Publisher: Elsevier BV
Date: 09-2019
A Pb2+-ion electrochemical biosensor based on single-stranded DNAzyme catalytic beacon
Publisher: Elsevier BV
Date: 2016
Synthesis and growth of hematite nanodiscs through a facile hydrothermal approach
Publisher: Springer Science and Business Media LLC
Date: 29-04-2010
Size-dependent effects of gold nanoparticles on osteogenic differentiation of human periodontal ligament progenitor cells
Publisher: Ivyspring International Publisher
Date: 2017
DOI: 10.7150/THNO.17252
Mechanical properties of graphene films enhanced by homo-telechelic functionalized polymer fillers via pi-pi It stacking interactions
Publisher: Elsevier BV
Date: 04-2015
Reverse synthesis of star anise-like cobalt doped Cu-MOF/Cu2+1O hybrid materials based on a Cu(OH)2 precursor for high performance supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8TA11396C
Abstract: A vertically oriented star anise-like MOF-based material is prepared by a novel strategy using Cu(OH) 2 as the template and precursor, which shows promising electrochemical energy storage properties.
Hierarchical coral-like NiMOS nanohybrids as highly efficient bifunctional electrocatalysts for overall urea electrolysis
Publisher: Springer Science and Business Media LLC
Date: 04-08-2018
A biomimetic sensor for the detection of lead in water
Publisher: Elsevier BV
Date: 05-2015
DOI: 10.1016/J.BIOS.2014.09.077
Abstract: The monitoring of lead (II) ions (Pb(2+)) in water is essential for both human health and the environment. Herein, a simple yet innovative biosensor for Pb(2+) detection is presented. The sensor is developed by the self-assembly of gold nanoparticles (GNPs) core-satellite structure using naturally occurring tripeptide glutathione (GSH) as linker. The addition of Pb(2+) caused a red-to-blue color change and the localized surface plasmon resonance (LSPR) band was shifted to ca. 650 nm. The limit of detection (LOD) is found to be 47.6 nM (9.9 ppb) by UV-vis spectroscopy with high selectivity against other heavy metals. This method offers a new strategy for heavy metal detection using functionalized GNPs.
Environmentally stable MXene ink for direct writing flexible electronics
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1NR07387G
Abstract: A long shelf time MXene ink was prepared using a mixture of water and ethylene glycol and is a promising candidate for fabricating conductive circuits and paper-based flexible devices.
Exploring the use of the tripeptide Gly-Gly-His as a selective recognition element for the fabrication of electrochemical copper sensors
Publisher: Royal Society of Chemistry (RSC)
Date: 2003
DOI: 10.1039/B212881K
Abstract: The modification of electrodes with the tripeptide Gly-Gly-His for the detection of copper in water s les is described in detail. The tripeptide modified electrode was prepared by first self-assembling 3-mercaptopropionic acid (MPA) onto the gold electrode followed by covalent attachment of the tripeptide to the self-assembled monolayer using carbodiimide coupling. The electrodes were characterized using electrochemistry, a newly developed mass-spectrometry method and quantum mechanical calculations. The mass spectrometry confirmed the modification to proceed as expected with peptide bonds formed between the carboxylic acids of the MPA and the terminal amine of the peptide. Electrochemical measurements indicated that approximately half the MPA molecules in a SAM are modified with the peptide. The peptide modified electrodes exhibited high sensitivity to copper which is attributed to the stable 4N coordinate complex the peptide formed around the metal ion to give copper the preferred tetragonal coordination. The formation of a 4 coordinate complex was predicted using quantum mechanical calculation and confirmed using mass spectrometry. The adsorption of the copper to the peptide modified electrode was consistent with a Langmuir isotherm with a binding constant of (8.1 +/- 0.4) 10(10) M(-1) at 25 degrees C.
Solvent Effect on Supramolecular Self-Assembly of Chlorophylls a on Chemically Reduced Graphene Oxide
Publisher: American Chemical Society (ACS)
Date: 21-10-2020
Simultaneously ‘pushing’ and ‘pulling’ graphene oxide into low-polar solvents through a designed interface
Publisher: IOP Publishing
Date: 04-06-2018
Abstract: Dispersing graphene oxide (GO) in low-polar solvents can realize a perfect self-assembly with functional molecules and application in removal of organic impurities that only dissolve in low-polar solvents. The surface chemistry of GO plays an important role in its dispersity in these solvents. The direct transfer of hydrophilic GO into low-polar solvents, however, has remained an experimental challenge. In this study, we design an interface to transfer GO by simultaneously 'pushing and pulling' the nanosheets into low-polar solvents. Our approach is outstanding due to the ability to obtain monolayers of chemically reduced GO (CRGO) with designed surface properties in the organic phase. Using the transferred GO or CRGO dispersions, we have fabricated GO/fullerene nanocomposites and assessed the ability of CRGOs for dye adsorption. We hope our work can provide a universal approach for the phase transfer of other nanomaterials.
Facile construction of MgCo2O4@CoFe layered double hydroxide core-shell nanocomposites on nickel foam for high-performance asymmetric supercapacitors
Publisher: Elsevier BV
Date: 02-2021
Scanning Tunnelling Microscopy-Based Break Junction as a Tool in Rapid Measurement of Single-Molecule Conductance
Publisher: CSIRO Publishing
Date: 2008
DOI: 10.1071/CH08396
Bio-conjugation of antioxidant peptide on surface-modified gold nanoparticles: a novel approach to enhance the radical scavenging property in cancer cell
Publisher: Springer Science and Business Media LLC
Date: 09-02-2016
Electrochemical synthesis of fractal bimetallic Cu/Ag nanodendrites for efficient surface enhanced Raman spectroscopy
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6CC05215K
Abstract: A schematic illustration of the electrochemical synthesis of fractal bimetallic Cu/Ag nanodendrites for efficient surface enhanced Raman spectroscopy.
Graphene-Oxide-Based Enzyme Nanoarchitectonics for Substrate Channeling
Publisher: Wiley
Date: 08-12-2017
The comparative study of two reusable phosphotungstic acid salts/reduced graphene oxides composites with enhanced photocatalytic activity
Publisher: Springer Science and Business Media LLC
Date: 07-01-2019
DOI: 10.1007/S11356-018-4047-Y
Abstract: In this work, two recyclable phosphotungstic acid salts/reduced graphene oxides were successfully prepared. The prepared s les were characterized by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), infrared spectroscopy (IR), X-ray photoelectron spectroscopy (XPS), thermo-gravimetric analysis (TGA), Raman spectroscopy, and photoluminescence spectroscopy (PL). The structure and catalytic performance of two composites were comparatively investigated, and the reduced graphene oxide mass ratios in K
A sensitive electrochemical assay for T4 polynucleotide kinase activity based on titanium dioxide nanotubes and a rolling circle amplification strategy
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8RA07745B
Abstract: An ultrasensitive electrochemical biosensor was developed for detection of T4 polynucleotide kinase activity based on titanium dioxide nanotubes and a rolling circle lification strategy.
2D Active Nanobots Based on Soft Nanoarchitectonics Powered by an Ultralow Fuel Concentration
Publisher: Wiley
Date: 11-01-2022
Abstract: Enzyme catalysis to power micro/nanomotors has received tremendous attention because of the vast potential in applications ranging from biomedicine to environmental remediation. However, the current design is mainly based on a complex three‐dimensional (3D) architecture, with limited accessible surface areas for the catalytic sites, and thus requires a higher fuel concentration to achieve active motion. Herein we report for the first time an enzyme‐powered 2D nanobot, which was designed by a facile strategy based on soft nanoarchitectonics for active motion at an ultralow fuel concentration (0.003 % H 2 O 2 ). The 2D nanobots exhibited efficient positive chemotactic behavior and the ability to swim against gravity by virtue of solutal buoyancy. As a proof‐of‐concept, the 2D nanobots showed an excellent capability for “on‐the‐fly” removal of methylene blue (MB) dye with an efficiency of 85 %.
Biocompatibility of boron nitride nanosheets
Publisher: Springer Science and Business Media LLC
Date: 08-06-2018
pH-Detachable Polymer Brushes Formed Using Titanium-Diol Coordination Chemistry and Living Radical Polymerization (RAFT)
Publisher: American Chemical Society (ACS)
Date: 30-03-2009
DOI: 10.1021/MA802256G
The preparation and photocatalytic activity of phosphotungstic acid-reduced graphene oxide composites
Publisher: Desalination Publications
Date: 2017
Superelastic and Arbitrary‐Shaped Graphene Aerogels with Sacrificial Skeleton of Melamine Foam for Varied Applications
Publisher: Wiley
Date: 19-12-2017
Electrochemical selective detection of carnitine enantiomers coupling copper ion dependent DNAzyme with DNA assistant hybridization chain reaction
Publisher: Elsevier BV
Date: 03-2019
One-pot facile synthesis of platinum nanoparticle decorated reduced graphene oxide composites and their application in electrochemical detection of rutin
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5AY00353A
Abstract: We report on the synthesis of platinum nanoparticle–reduced graphene oxide (PtNP–rGO) composites and their application as a novel architecture in electrochemical detection of rutin.
Flexible coaxial fiber-shaped asymmetric supercapacitors based on manganese, nickel co-substituted cobalt carbonate hydroxides
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9TA11942F
Abstract: A wearable coaxial fiber-shaped asymmetric supercapacitor based on well-aligned Mn, Ni co-substituted Co carbonate hydroxide nanoneedle arrays on carbon fibers is successfully fabricated, and it exhibits excellent electrochemical performances.
Corrigendum: Dispersing Carbon Nanotubes with Graphene Oxide in Water and Synergistic Effects between Graphene Derivatives
Publisher: Wiley
Date: 14-11-2011
Freezing Titanium Carbide Aqueous Dispersions for Ultra-long-term Storage
Publisher: American Chemical Society (ACS)
Date: 03-07-2020
Self-assembly of ultrathin gold nanowires and single walled carbon nanotubes as a highly sensitive substrate for surface enhanced Raman spectroscopy
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6NJ00774K
Abstract: Self-assembly of ultrathin gold nanowires and single-walled carbon nanotubes as highly sensitive substrates for surface enhanced Raman spectroscopy.
CoP2 nanoparticles on reduced graphene oxide sheets as a super-efficient bifunctional electrocatalyst for full water splitting
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6TA00596A
Abstract: CoP 2 nanoparticles decorated reduced graphene oxide sheet (CoP 2 /RGO) acts as a super-efficient bifunctional electrocatalyst for full water splitting.
Study on the adsorption/degradation of rhodamine b by fenton-like reagent based on carbon nanotubes
Publisher: Desalination Publications
Date: 2018
Electrochemical biosensor for silver ions based on amplification of DNA–Au bio–bar codes and silver enhancement
Publisher: Elsevier BV
Date: 2017
Gold nanoparticles modulate the crosstalk between macrophages and periodontal ligament cells for periodontitis treatment
Publisher: Elsevier BV
Date: 06-2019
DOI: 10.1016/J.BIOMATERIALS.2019.03.039
Abstract: The regeneration of lost periodontal apparatus in periodontitis treatment remains a clinical challenge due to the limited regenerative capacity of cementum, periodontal ligament and alveolar bone in periodontitis condition. For periodontal tissue regeneration, it is essential to regulate the inflammatory response and the subsequent differentiation of periodontal cells under the condition due to the infectious nature of the disease. In this study, it was noted that 45 nm gold nanoparticles (AuNPs) could exhibit significant anti-inflammatory effect and improve the periodontal inflammatory microenvironment via regulating inflammatory and regenerative cytokine production and modulating macrophage polarization, subsequently affect the differentiation of human periodontal ligament cells (hPDLCs). With the addition of direct effects of AuNPs on hPDLCs, the periodontal tissue differentiation capacity of hPDLCs in LPS-activated inflammatory macrophage-hPDLCs coculture system was significantly enhanced by the interaction between AuNPs-conditioned macrophage and AuNPs-stimulated hPDLCs. The potential therapeutic application of AuNPs in periodontal tissue regeneration and periodontitis treatment was investigated using both rat fenestration and ligature-induced periodontitis models. It was found that the treatment of 45 AuNPs showed significantly increased newly-formed periodontal attachment, bone and cementum in periodontal defect and less tissue destruction in the progression of periodontitis. This study demonstrated that 45 nm AuNPs could not only directly modulate hPDLCs, but also regulate the early inflammatory response of periodontal tissues via the regulation of macrophage phenotypes, therefore, generate a microenvironment with constraint inflammatory cytokine levels and reparative cytokines such as bone morphogenetic protein-2 (BMP-2), leading to PDLC differentiation, periodontal tissue regeneration and the prevention of periodontitis progression.
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