ORCID Profile
0000-0002-6295-6492
Current Organisation
Western Sydney University - Penrith Campus
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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.
Agricultural Biotechnology not elsewhere classified | Materials engineering | Functional Materials | Nanotechnology not elsewhere classified | Nanomaterials | Functional materials | Materials Engineering
Environmentally Sustainable Energy Activities not elsewhere classified | Expanding Knowledge in Technology |
Publisher: Elsevier BV
Date: 02-2020
Publisher: Elsevier BV
Date: 02-2017
Publisher: Wiley
Date: 05-02-2018
Publisher: Springer Science and Business Media LLC
Date: 30-10-2018
Publisher: Beilstein Institut
Date: 25-01-2019
DOI: 10.3762/BJNANO.10.27
Abstract: Developing a facile and environmentally friendly approach to the synthesis of nanostructured Ni(OH) 2 electrodes for high-performance supercapacitor applications is a great challenge. In this work, we report an extremely simple route to prepare a Ni(OH) 2 nanopetals network by immersing Ni nanofoam in water. A binder-free composite electrode, consisting of Ni(OH) 2 nanopetals network, Ni nanofoam interlayer and Ni-based metallic glass matrix (Ni(OH) 2 /Ni-NF/MG) with sandwich structure and good flexibility, was designed and finally achieved. Microstructure and morphology of the Ni(OH) 2 nanopetals were characterized. It is found that the Ni(OH) 2 nanopetals interweave with each other and grow vertically on the surface of Ni nanofoam to form an “ion reservoir”, which facilitates the ion diffusion in the electrode reaction. Electrochemical measurements show that the Ni(OH) 2 /Ni-NF/MG electrode, after immersion in water for seven days, reveals a high volumetric capacitance of 966.4 F/cm 3 at a current density of 0.5 A/cm 3 . The electrode immersed for five days exhibits an excellent cycling stability (83.7% of the initial capacity after 3000 cycles at a current density of 1 A/cm 3 ). Furthermore, symmetric supercapacitor (SC) devices were assembled using ribbons immersed for seven days and showed a maximum volumetric energy density of ca. 32.7 mWh/cm 3 at a power density of 0.8 W/cm 3 , and of 13.7 mWh/cm 3 when the power density was increased to 2 W/cm 3 . The fully charged SC devices could light up a red LED. The work provides a new idea for the synthesis of nanostructured Ni(OH) 2 by a simple approach and ultra-low cost, which largely extends the prospect of commercial application in flexible or wearable devices.
Publisher: Springer Science and Business Media LLC
Date: 04-2008
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4CC08399G
Abstract: Our investigations demonstrate the advantages of applying a two-solvent approach that produces high-yield two-dimensional WS 2 flakes suitable for electronic, optical and catalytic applications.
Publisher: Springer Science and Business Media LLC
Date: 30-09-2015
Publisher: Elsevier BV
Date: 03-2019
Publisher: Informa UK Limited
Date: 17-01-2015
DOI: 10.3109/10717544.2013.875603
Abstract: The incorporation of a high percentage of targeting molecules into drug delivery system is one of the important methods for improving efficacy of targeting therapeutic drugs to cancer cells. PLGA-based drug delivery carriers with folic acid (FA) as targeting molecule have a low targeting efficiency due to a low FA conjugation ratio. In this work, we fabricated a FA-conjugated PLGA system using a crosslinker 1, 3-diaminopropane and have achieved a high conjugation ratio of 46.7% (mol/mol). The as-prepared PLGA-based biomaterial was used to encapsulate therapeutic drug 5-fluorouracil (5-FU) into nanoparticles. In the in vitro experiments, an IC₅₀ of 5.69 µg/mL has been achieved for 5-FU loaded PLGA-1, 3-diaminopropane-folic acid nanoparticles on HT-29 cancer cells and is significantly lower than that of 5-FU and 5-FU loaded PLGA nanoparticles which only have an IC₅₀ of 22.9 and 14.17 µg/mL, respectively. The fluorescent microscopy images showed that nanoparticles with FA are largely taken up by HT-29 cancer cells and the targeting nanoparticles have more affinity to cancer cells than the pure drugs and untreated nanoparticles. Therefore, the 1, 3-diaminopropane can facilitate the conjugation of FA to PLGA to form a novel polymer and 5-FU loaded PLGA-1, 3-diaminopropane-folic acid nanoparticles can be a highly efficient system for specific delivery of drugs to cancer cells.
Publisher: Wiley
Date: 30-03-2018
Abstract: While the remarkable properties of 2D crystalline materials offer tremendous opportunities for their use in optics, electronics, energy systems, biotechnology, and catalysis, their practical implementation largely depends critically on the ability to exfoliate them from a 3D stratified bulk state. This goal nevertheless remains elusive, particularly in terms of a rapid processing method that facilitates high yield and dimension control. An ultrafast multiscale exfoliation method is reported which exploits the piezoelectricity of stratified materials that are noncentrosymmetric in nature to trigger electrically-induced mechanical failure across weak grain boundaries associated with their crystal domain planes. In particular, it is demonstrated that microfluidic nebulization using high frequency acoustic waves exposes bulk 3D piezoelectric crystals such as molybdenum disulphide (MoS
Publisher: Wiley
Date: 28-06-2023
Abstract: Artificially augmented photosynthesis in nano‐bionic plants requires tunable nano‐antenna structures with physiochemical and optoelectronic properties, as well as unique light conversion capabilities. The use of nanomaterials to promote light capture across photosystems, primarily by carbon dots, has shown promising results in enhancing photosynthesis through tunable uptake, translocation, and biocompatibility. Carbon dots possess the ability to perform both down and up‐light conversions, making them effective light promoters for harnessing solar energy beyond visible light wavelengths.This review presents and discusses the recent progress in fabrication, chemistry, and morphology, as well as other properties such as photoluminescence and energy conversion efficiency of nano‐antennas based on carbon dots. The performance of artificially boosted photosynthesis is discussed and then correlated with the conversion properties of carbon dots and how they are applied to plant models. The challenges related to the nanomaterial delivery and the performance evaluation practices in modified photosystems, consideration of the reliability of this approach, and the potential avenues for performance improvements through other types of nano‐antennas based on alternative nanomaterials are also critically evaluated. It is anticipated that this review will stimulate more high‐quality research in plant nano‐bionics and provide avenues to enhance photosynthesis for future agricultural applications.
Publisher: Elsevier BV
Date: 07-2010
Publisher: MDPI AG
Date: 04-07-2018
DOI: 10.3390/MET8070515
Publisher: Wiley
Date: 31-10-2019
Publisher: Elsevier BV
Date: 05-2011
DOI: 10.1016/J.CARRES.2011.01.027
Abstract: Folate-chitosan (FA-CS) conjugates synthesized by coupling FA with CS render new and improved functions because the original properties of CS are maintained and the targeting ligand of FA is incorporated. In this work, FA-CS conjugates were synthesized based on chemical linking of carboxylic group of FA with amino group of CS as confirmed by Fourier transform spectroscopy (FTIR) and nuclear magnetic resonance ((1)H NMR). FA-CS conjugates displayed less crystal nature when compared to CS. The FA-CS nanoparticles (NPs) were prepared by crosslinking FA-CS conjugates with sodium tripolyphosphate (STPP). Positively charged FA-CS nanoparticles were spherical in shape with a particle size of about 100 nm. Cellular uptake of CS or FA-CS nanoparticles was assayed by fluorescent microscopy using calcein as fluorescent marker in colon cancer cells (HT-29). The FA-CS nanoparticles exhibited improved uptake of HT-29 and could become a potential targeted drug delivery system for colorectal cancer.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2NR01135B
Abstract: Gas-liquid reaction phenomena on liquid-metal solvents can be used to form intriguing 2D materials with large lateral dimensions, where the free energies of formation determine the final product. A vast selection of elements can be incorporated into the liquid metal-based nanostructures, offering a versatile platform for fabricating novel optoelectronic devices. While conventional doping techniques of semiconductors present several challenges for 2D materials. Liquid metals provide a facile route for obtaining doped 2D semiconductors. In this work, we successfully demonstrate that the doping of 2D SnS can be realized in a glove box containing a diluted H
Publisher: Elsevier BV
Date: 06-2011
Publisher: American Chemical Society (ACS)
Date: 21-01-2016
Publisher: Elsevier BV
Date: 12-2018
Publisher: American Chemical Society (ACS)
Date: 03-11-2020
Publisher: Springer Science and Business Media LLC
Date: 06-2007
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7NR05403C
Abstract: Ultra sensitivity and selectivity were achieved by the physisorption of gases onto two dimensional tungsten oxides.
Publisher: American Chemical Society (ACS)
Date: 06-2018
Publisher: American Chemical Society (ACS)
Date: 03-04-2019
Publisher: Elsevier BV
Date: 09-2019
Publisher: American Chemical Society (ACS)
Date: 14-07-2022
Publisher: Elsevier BV
Date: 12-2018
Publisher: American Chemical Society (ACS)
Date: 20-12-0020
Publisher: Informa UK Limited
Date: 08-09-2015
DOI: 10.3109/02652048.2014.944947
Abstract: Folate-chitosan nanoparticles, co-loaded with 5-fluourouacil (5-FU) and leucovorin (LV) and prepared by ionic gelation technology were physically microencapsulated by enteric polymer using a solvent evaporation method. Average particle size of the microencapsulated particles was in the range of 15 to 35 µm. High drug encapsulation efficiency was obtained for both 5-FU and LV in the microencapsulated particles. Both drugs were in amorphous state in the microencapsulated particles. By enteric coating, excellent pH-dependent release profile was achieved and no drug release was observed in simulated gastric and intestinal fluids. However, when the pH value reached the soluble threshold of Eudragit S-100, a constant and slow drug release was observed. The results indicated that these microencapsulated particles are a promising vehicle for selectively targeting drugs to colon in the chemotherapy of colon cancer.
Publisher: Elsevier BV
Date: 12-2007
Publisher: Wiley
Date: 18-01-2018
Publisher: Elsevier BV
Date: 06-2020
Publisher: American Chemical Society (ACS)
Date: 13-10-2015
Abstract: Nitrogen dioxide (NO2) is a gas species that plays an important role in certain industrial, farming, and healthcare sectors. However, there are still significant challenges for NO2 sensing at low detection limits, especially in the presence of other interfering gases. The NO2 selectivity of current gas-sensing technologies is significantly traded-off with their sensitivity and reversibility as well as fabrication and operating costs. In this work, we present an important progress for selective and reversible NO2 sensing by demonstrating an economical sensing platform based on the charge transfer between physisorbed NO2 gas molecules and two-dimensional (2D) tin disulfide (SnS2) flakes at low operating temperatures. The device shows high sensitivity and superior selectivity to NO2 at operating temperatures of less than 160 °C, which are well below those of chemisorptive and ion conductive NO2 sensors with much poorer selectivity. At the same time, excellent reversibility of the sensor is demonstrated, which has rarely been observed in other 2D material counterparts. Such impressive features originate from the planar morphology of 2D SnS2 as well as unique physical affinity and favorable electronic band positions of this material that facilitate the NO2 physisorption and charge transfer at parts per billion levels. The 2D SnS2-based sensor provides a real solution for low-cost and selective NO2 gas sensing.
Publisher: American Chemical Society (ACS)
Date: 08-01-2015
DOI: 10.1021/NL503563G
Abstract: The exhibition of plasmon resonances in two-dimensional (2D) semiconductor compounds is desirable for many applications. Here, by electrochemically intercalating lithium into 2D molybdenum disulfide (MoS2) nanoflakes, plasmon resonances in the visible and near UV wavelength ranges are achieved. These plasmon resonances are controlled by the high doping level of the nanoflakes after the intercalation, producing two distinct resonance peak areas based on the crystal arrangements. The system is also benchmarked for biosensing using bovine serum albumin. This work provides a foundation for developing future 2D MoS2 based biological and optical units.
Publisher: IEEE
Date: 10-2010
Publisher: American Chemical Society (ACS)
Date: 24-10-2013
DOI: 10.1021/NN4041987
Abstract: Two-dimensional (2D) transition metal dichalcogenide semiconductors offer unique electronic and optical properties, which are significantly different from their bulk counterparts. It is known that the electronic structure of 2D MoS2, which is the most popular member of the family, depends on the number of layers. Its electronic structure alters dramatically at near atomically thin morphologies, producing strong photoluminescence (PL). Developing processes for controlling the 2D MoS2 PL is essential to efficiently harness many of its optical capabilities. So far, it has been shown that this PL can be electrically or mechanically gated. Here, we introduce an electrochemical approach to actively control the PL of liquid-phase-exfoliated 2D MoS2 nanoflakes by manipulating the amount of intercalated ions including Li(+), Na(+), and K(+) into and out of the 2D crystal structure. These ions are selected as they are crucial components in many bioprocesses. We show that this controlled intercalation allows for large PL modulations. The introduced electrochemically controlled PL will find significant applications in future chemical and bio-optical sensors as well as optical modulators/switches.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2NR05926F
Abstract: Various non-stratified two-dimensional (2D) materials can be obtained from liquid metal surfaces that are not naturally accessible.
Publisher: American Chemical Society (ACS)
Date: 07-07-2022
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9TB02423A
Abstract: Schematic illustration of 2D MO nanosheets for applications in biosystems.
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.
Publisher: Beilstein Institut
Date: 21-02-2019
DOI: 10.3762/BJNANO.10.52
Abstract: In this work, a unique three-dimensional (3D) structured carbon-based composite was synthesized. In the composite, multiwalled carbon nanotubes (MWCNT) form a lattice matrix in which porous spherical reduced graphene oxide (RGO) completes the 3D structure. When used in Li–S batteries, the 3D porous lattice matrix not only accommodates a high content of sulfur, but also induces a confinement effect towards polysulfide, and thereby reduces the “shuttle effect”. The as-prepared S-3D-RGO@MWCNT composite delivers an initial specific capacity of 1102 mAh·g −1 . After 200 charging/discharge cycles, a capacity of 805 mAh·g −1 and a coulombic efficiency of 98% were maintained, implying the shuttle effect was greatly suppressed by the composite matrix. In addition, the S-3D-RGO@MWCNT composite also exhibits an excellent rate capability.
Publisher: American Chemical Society (ACS)
Date: 07-01-2014
DOI: 10.1021/NL4042356
Abstract: Quasi-two-dimensional (quasi-2D) molybdenum disulfide (MoS2) is a photoluminescence (PL) material with unique properties. The recent demonstration of its PL, controlled by the intercalation of positive ions, can lead to many opportunities for employing this quasi-2D material in ion-related biological applications. Here, we present two representative models of biological systems that incorporate the ion-controlled PL of quasi-2D MoS2 nanoflakes. The ion exchange behaviors of these two models are investigated to reveal enzymatic activities and cell viabilities. While the ion intercalation of MoS2 in enzymatic activities is enabled via an external applied voltage, the intercalation of ions in cell viability investigations occurs in the presence of the intrinsic cell membrane potential.
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8NR02532K
Abstract: PbTe quantum dots (QDs) function as electron transfer intermediates for higher electrocatalytic performances from MoS x /PbTe QDs/TNAs.
Publisher: IEEE
Date: 02-2010
Publisher: MDPI AG
Date: 02-2016
DOI: 10.3390/NANO6020026
Publisher: CSIRO Publishing
Date: 2023
DOI: 10.1071/FP22274
Publisher: American Chemical Society (ACS)
Date: 16-01-2020
Publisher: Wiley
Date: 02-10-2019
Publisher: Trans Tech Publications, Ltd.
Date: 06-2010
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.654-656.2265
Abstract: A combined drug loaded system containing two most common anti-cancer drugs 5-fluorouracil (5-FU) and leucovorin (LV) was designed and prepared by ion crosslinking technology. The resulted nanoparticles are spherical in shape, and the particle size becomes larger when drug combination are loaded. Efficient drug encapsulation efficiency (EE) and drug loading (LC) are obtained due to the strong interaction between drugs and polymer. The combined drugs are distributed in the particles in amorpholous state which are demonstrated by the XRD results.
Publisher: American Chemical Society (ACS)
Date: 20-07-2018
Publisher: American Chemical Society (ACS)
Date: 09-06-2015
Publisher: Elsevier BV
Date: 02-2018
Publisher: American Chemical Society (ACS)
Date: 28-07-2023
Publisher: Wiley
Date: 26-11-2013
DOI: 10.1002/APP.38582
Publisher: Wiley
Date: 24-01-2019
Abstract: Silicon photonics has demonstrated great potential in ultrasensitive biochemical sensing. However, it is challenging for such sensors to detect small ions which are also of great importance in many biochemical processes. A silicon photonic ion sensor enabled by an ionic dopant-driven plasmonic material is introduced here. The sensor consists of a microring resonator (MRR) coupled with a 2D restacked layer of near-infrared plasmonic molybdenum oxide. When the 2D plasmonic layer interacts with ions from the environment, a strong change in the refractive index results in a shift in the MRR resonance wavelength and simultaneously the alteration of plasmonic absorption leads to the modulation of MRR transmission power, hence generating dual sensing outputs which is unique to other optical ion sensors. Proof-of-concept via a pH sensing model is demonstrated, showing up to 7 orders improvement in sensitivity per unit area across the range from 1 to 13 compared to those of other optical pH sensors. This platform offers the unique potential for ultrasensitive and robust measurement of changes in ionic environment, generating new modalities for on-chip chemical sensors in the micro/nanoscale.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3CC04633H
Publisher: Wiley
Date: 20-07-2015
Abstract: At a relatively low loading concentration (≈0.02 wt%) of 2D MoS 2 flakes in PDMS, the composite membrane is able to almost completely block the permeation of NO2 gas molecules at ppm levels. This major reduction is ascribed to the strong physisorption of NO2 gas molecules onto the 2D MoS2 flake basal planes.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8TA08330D
Abstract: Planner hexagonal molybdenum oxide as an emerging electrocatalyst for the hydrogen evolution reaction (HER) in alkaline media.
Publisher: Elsevier BV
Date: 05-2022
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4TA06286H
Abstract: Reversibility of the gas sensor made of a 500 nm thick WO 3 nanoporous film upon exposure to hydrogen gas at 200 °C.
Publisher: MDPI AG
Date: 22-09-2022
DOI: 10.3390/CROPS2040024
Abstract: Protected cropping produces more food per land area than field-grown crops. Protected cropping includes low-tech polytunnels utilizing protective coverings, medium-tech facilities with some environmental control, and high-tech facilities such as fully automated glasshouses and indoor vertical farms. High crop productivity and quality are maintained by using environmental control systems and advanced precision phenotyping sensor technologies that were first developed for broadacre agricultural and can now be utilized for protected-cropping applications. This paper reviews the state of the global protected-cropping industry and current precision phenotyping methodology and technology that is used or can be used to advance crop productivity and quality in a protected growth environment. This review assesses various sensor technologies that can monitor and maintain microclimate parameters, as well as be used to assess plant productivity and produce quality. The adoption of precision phenotyping technologies is required for sustaining future food security and enhancing nutritional quality.
Publisher: American Chemical Society (ACS)
Date: 14-01-2015
DOI: 10.1021/AM5077364
Abstract: Solvothermally synthesized Ga2O3 nanoparticles are incorporated into liquid metal/metal oxide (LM/MO) frameworks in order to form enhanced photocatalytic systems. The LM/MO frameworks, both with and without incorporated Ga2O3 nanoparticles, show photocatalytic activity due to a plasmonic effect where performance is related to the loading of Ga2O3 nanoparticles. Optimum photocatalytic efficiency is obtained with 1 wt % incorporation of Ga2O3 nanoparticles. This can be attributed to the sub-bandgap states of LM/MO frameworks, contributing to pseudo-ohmic contacts which reduce the free carrier injection barrier to Ga2O3.
Publisher: Springer Science and Business Media LLC
Date: 06-03-2013
Publisher: MDPI AG
Date: 16-05-2018
DOI: 10.3390/LAND7020064
Start Date: 2022
End Date: 2025
Funder: Australian Research Council
View Funded ActivityStart Date: 02-2022
End Date: 02-2025
Amount: $405,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 07-2023
End Date: 06-2027
Amount: $841,720.00
Funder: Australian Research Council
View Funded Activity