ORCID Profile
0000-0002-4508-5971
Current Organisations
Università Politecnica delle Marche
,
King's College Hospital
,
RMIT University
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
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)
Metals and Alloy Materials | Materials Engineering | Materials Engineering not elsewhere classified | Functional Materials | Biomaterials | Biomedical Engineering |
ANZSRC Socio-Economic Objective (SEO)
Energy Conservation and Efficiency in Transport | Coated Metal and Metal-Coated Products | Expanding Knowledge in Engineering | Inorganic Industrial Chemicals | Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) not elsewhere classified | Fabricated Metal Products not elsewhere classified
Related Links
Publications
Origin of the Photocatalytic Activity of Crystalline Phase Structures
Publisher: American Chemical Society (ACS)
Date: 24-06-2022
Ultrafine Sb nanoparticles in situ confined in covalent organic frameworks for high-performance sodium-ion battery anodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2TA01414A
Abstract: Based on π-conjugated COFs, the in situ confinement method affords intimate electron interaction, thus facilitating fast charge transfer. Sb@NGA–CMP exhibits high performance even after 5000 long cycles.
In vitro corrosion of micro-arc oxidation coating on Mg-1Li-1Ca alloy — The influence of intermetallic compound Mg2Ca
Publisher: Elsevier BV
Date: 10-2018
An Initial Assessment of the Effects of Increased Ni and V Content in A356 and AA6063 Alloys
Publisher: Springer International Publishing
Date: 2016
Self-degradation of micro-arc oxidation/chitosan composite coating on Mg-4Li-1Ca alloy
Publisher: Elsevier BV
Date: 06-2018
A Combined Inhibiting Effect of Sodium Alginate and Sodium Phosphate on the Corrosion of Magnesium Alloy AZ31 in NaCl Solution
Publisher: The Electrochemical Society
Date: 2016
DOI: 10.1149/2.0941608JES
Corrosion resistance of glucose-induced hydrothermal calcium phosphate coating on pure magnesium
Publisher: Elsevier BV
Date: 2019
Enhanced protective coatings on Ti-10V-2Fe-3Al alloy through anodizing and post-sealing with layered double hydroxides
Publisher: Elsevier BV
Date: 2020
Dual functions of chloride ions on corrosion behavior of mild steel in CO2 saturated aqueous solutions
Publisher: Wiley
Date: 05-12-2018
Influence of calcium ion deposition on apatite-inducing ability of porous titanium for biomedical applications
Publisher: Elsevier BV
Date: 06-2009
DOI: 10.1016/J.ACTBIO.2009.01.015
Abstract: In the present study, the influence of calcium ion deposition on the apatite-inducing ability of porous titanium (Ti) was investigated in a modified simulated body fluid (m-SBF). Calcium hydroxide (Ca(OH)(2)) solutions with five degrees of saturation were used to hydrothermally deposit Ca ions on porous Ti with a porosity of 80%. Apatite-inducing ability of the Ca-ion-deposited porous Ti was evaluated by soaking them in m-SBF for up to 14 days. Scanning electron microscopy (SEM) and X-ray diffractometry (XRD) confirmed that a thin layer of calcium titanate (CaTiO(3))/calcium oxide (CaO) mixture with a nanostructured porous network was produced on porous Ti substrates after hydrothermal treatment at 200 degrees C for 8 h. X-ray photoelectron spectroscopy results demonstrated that the content of the Ca ions deposited on Ti and the thickness of the CaTiO(3)/CaO layer increased with increasing saturation degree of the Ca(OH)(2) solution. The thickest (over 10 nm) CaTiO(3)/CaO layer with the highest Ca content was achieved on the Ti treated in an oversaturated Ca(OH)(2) solution (0.2 M). SEM, XRD, transmission electron microscopy and Fourier transformed infrared spectroscopy analysis indicated that the porous Ti s les deposited with the highest content of Ca ions exhibited the best apatite-inducing ability, producing a dense and complete carbonated apatite coating after a 14 day soaking in m-SBF. The present study illustrated the validity of using Ca ion deposition as a pre-treatment to endow desirable apatite-inducing ability of porous Ti for bone tissue engineering applications.
Influence of surface chemistry on the formation of crystalline hydroxide coatings on Mg alloys in liquid water and steam systems
Publisher: Elsevier BV
Date: 12-2016
Formation and evolution of nanoporous bimetallic Ag-Cu alloy by electrochemically dealloying Mg-(Ag-Cu)-Y metallic glass
Publisher: Elsevier BV
Date: 05-2017
Corrosion and Wear Resistance of Micro-Arc Oxidation Composite Coatings on Magnesium Alloy AZ31—The Influence of Inclusions of Carbon Spheres
Publisher: Wiley
Date: 08-08-2019
Safety and efficacy of non-steroidal anti-inflammatory drugs to reduce ileus after colorectal surgery
Publisher: Oxford University Press (OUP)
Date: 09-10-2019
DOI: 10.1002/BJS.11326
Abstract: Ileus is common after elective colorectal surgery, and is associated with increased adverse events and prolonged hospital stay. The aim was to assess the role of non-steroidal anti-inflammatory drugs (NSAIDs) for reducing ileus after surgery. A prospective multicentre cohort study was delivered by an international, student- and trainee-led collaborative group. Adult patients undergoing elective colorectal resection between January and April 2018 were included. The primary outcome was time to gastrointestinal recovery, measured using a composite measure of bowel function and tolerance to oral intake. The impact of NSAIDs was explored using Cox regression analyses, including the results of a centre-specific survey of compliance to enhanced recovery principles. Secondary safety outcomes included anastomotic leak rate and acute kidney injury. A total of 4164 patients were included, with a median age of 68 (i.q.r. 57–75) years (54·9 per cent men). Some 1153 (27·7 per cent) received NSAIDs on postoperative days 1–3, of whom 1061 (92·0 per cent) received non-selective cyclo-oxygenase inhibitors. After adjustment for baseline differences, the mean time to gastrointestinal recovery did not differ significantly between patients who received NSAIDs and those who did not (4·6 versus 4·8 days hazard ratio 1·04, 95 per cent c.i. 0·96 to 1·12 P = 0·360). There were no significant differences in anastomotic leak rate (5·4 versus 4·6 per cent P = 0·349) or acute kidney injury (14·3 versus 13·8 per cent P = 0·666) between the groups. Significantly fewer patients receiving NSAIDs required strong opioid analgesia (35·3 versus 56·7 per cent P & 0·001). NSAIDs did not reduce the time for gastrointestinal recovery after colorectal surgery, but they were safe and associated with reduced postoperative opioid requirement.
Effect of surface roughness of Ti, Zr, and TiZr on apatite precipitation from simulated body fluid
Publisher: Wiley
Date: 10-2008
DOI: 10.1002/BIT.21900
Abstract: Some of the critical properties for a successful orthopedic or dental implant material are its biocompatibility and bioactivity. Pure titanium (Ti) and zirconium (Zr) are widely accepted as biocompatible metals, due to their non-toxicity. While the bioactivity of Ti and some Ti alloys has been extensively investigated, there is still insufficient data for Zr and titanium-zirconium (TiZr) alloys. In the present study, the bioactivity, that is, the apatite forming ability on the alkali and heat treated surfaces of Ti, Zr, and TiZr alloy in simulated body fluid (SBF), was studied. In particular, the effect of the surface roughness characteristics on the bioactivity was evaluated for the first time. The results indicate that the pretreated Ti, Zr and TiZr alloy could form apatite coating on their surfaces. It should be noted that the surface roughness also critically affected the bioactivity of these pretreated metallic s les. A surface morphology with an average roughness of approximately 0.6 microm led to the fastest apatite formation on the metal surfaces. This apatite layer on the metal surface is expected to bond to the surrounding bones directly after implantation.
Comparative studies on wear behaviour between as cast AZ91 and Mg97Zn1Y2magnesium alloys
Publisher: Informa UK Limited
Date: 10-2007
Magnesium: Engineering the surface
Publisher: Springer Science and Business Media LLC
Date: 06-2012
Validating Agar as an Analog of Soil to Monitor Corrosion of Pipeline Steel
Publisher: Wiley
Date: 25-01-2023
Abstract: Aqueous electrolyte traditionally used for electrochemical characterization of soil‐related corrosion in laboratories fails to represent the soil physical features, such as pore structure, soil heterogeneity, soil compaction, and saturation levels, in the diffusion‐controlled corrosion process. This article introduces a semi‐solid agar system to reproduce the physical structure of soil for corrosion study. For feasibility validation of the agar system, direct comparison regarding electrochemical activity, diffusion characteristics, and corrosion mechanisms has been performed on pipeline steel in aqueous sodium chloride (NaCl) solution (5 g L −1 ), 5 g L −1 NaCl‐containing agar, and 5 g L −1 NaCl in sand, respectively. The results indicates that oxygen diffusion in agar and sand media is similar, which significantly weakens the cathodic activity of steel specimens, but leads to distinct corrosion characteristics from those identified in aqueous NaCl solution counterparts. The high diffusion rate of chloride ions in aqueous solution also accelerates corrosion of pipeline steel in NaCl solution through extensive attack at defect sites, but the limited chloride ion movement and the diminished driving force for anodic corrosion activity reduce such attack in their agar and sand equivalents. The solid nature of agar outperforms aqueous electrolytes as soil replicate to explore soil‐related corrosion responses at laboratory scale.
In vitro and in vivo biodegradation and biocompatibility of an MMT/BSA composite coating upon magnesium alloy AZ31
Publisher: Elsevier BV
Date: 06-2020
The Effect of Trace Levels of Ni and V on the Microstructure and Properties of Four Common Aluminum Alloys
Publisher: Wiley
Date: 02-2014
Composition and microstructure dependent corrosion behaviour of Mg-Li alloys
Publisher: Elsevier BV
Date: 2018
New design principles for the bath towards chromate- and crack-free conversion coatings on magnesium alloys
Publisher: Elsevier BV
Date: 03-2021
Protective strontium phosphate coatings for magnesium biomaterials
Publisher: Informa UK Limited
Date: 27-01-2014
Network Structural CNTs Penetrate Porous Carbon Support for Phase‐Change Materials with Enhanced Electro‐Thermal Performance
Publisher: Wiley
Date: 14-04-2020
Interfacial study of the formation mechanism of corrosion resistant strontium phosphate coatings upon Mg-3Al-4.3Ca-0.1Mn
Publisher: Elsevier BV
Date: 05-2019
Dry sliding wear behavior of magnesium alloys
Publisher: Elsevier BV
Date: 06-2008
Plasma Electrolytic Oxidation upon Mg Alloys: Fundamentals, State-of-the-Art Progress and Challenges
Publisher: Springer International Publishing
Date: 2022
Synthesis and characterization of an organically-templated zincophosphite: [C6H16N2]·Zn3(HPO3)4
Publisher: Elsevier BV
Date: 02-2004
Effect of [Ca2+] and [PO(4)(3-)] levels on the formation of calcium phosphate conversion coatings on die-cast magnesium alloy AZ91D
Publisher: Elsevier BV
Date: 02-2012
Synergistic Coating Strategy Combining Photodynamic Therapy and Fluoride-Free Superhydrophobicity for Eradicating Bacterial Adhesion and Reinforcing Corrosion Protection
Publisher: American Chemical Society (ACS)
Date: 22-09-2020
Corrosion-resistant electrochemical plating of magnesium (Mg) alloys
Publisher: Elsevier
Date: 2013
Corrosion resistance of self-cleaning silane/polypropylene composite coatings on magnesium alloy AZ31
Publisher: Elsevier BV
Date: 03-2020
Biodegradation of Mg-14Li alloy in simulated body fluid: A proof-of-concept study
Publisher: Elsevier BV
Date: 03-2018
A Lactoglobulin-Composite Self-Healing Coating for Mg Alloys
Publisher: American Chemical Society (ACS)
Date: 09-2021
Abstract: Corrosion issue is one of the most crucial bottlenecks for extensive employment of Mg alloys, in particular under harsh engineering conditions. Differing from traditional approaches, a self-healing protective coating composed of lactoglobulin is proposed herein to offer sustainable protection to the underlying Mg parts. Corrosion resistance, evaluated by electrochemical measurements and hydrogen evolution tests, indicates that the lactoglobulin composite film exhibits nobler corrosion potential (-1.28 V
Rational design of CNTs with encapsulated Co nanospheres as superior acid- and base-resistant microwave absorbers
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8DT02037J
Abstract: A Co@CNT material with a specific coating structure displays good EM wave absorption, even after treatment with concentrated acid or base.
Stifling magnesium corrosion via a novel anodic coating
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA03464K
Abstract: The use of light-weight magnesium (Mg) alloys as engineering materials has been h ered in part due to their poor corrosion performance. An effective novel sacrificial coating is presented herein.
Electrosprayed PLGA smart containers for active anti-corrosion coating on magnesium alloy AMlite
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3TA14999D
Quorum sensing inhibitors applications: A new prospect for mitigation of microbiologically influenced corrosion
Publisher: Elsevier BV
Date: 06-2022
DOI: 10.1016/J.BIOELECHEM.2022.108050
Abstract: Quorum sensing (QS) is a process of bacterial communication that involves the use of biochemical signals and adjusts the expression of specific genes as a response to the bacterial cell density within an environment. This process is employed by both Gram-positive and Gram-negative bacteria to regulate different physiological functions. In both cases, QS involves production, detection and responses to signalling chemicals, termed auto-inducers. Expression of virulence factors and formation of biofilms are the typical processes controlled by QS, which, therefore, inspires the exploration of QS as a plausible solution to mitigating the increasing microbial resistance to antibiotics. QS inhibitors (QSIs) from different origins have been recognised as a promising solution to biofilm related challenges in a large variety of applications. Though QSIs have demonstrated some strength in tackling biofouling, a key focus in the literature on QSIs based strategies has been to control microbially influenced corrosion. This article reviews the principles of QS, its mechanistic roles in biofilm formation and the feasibility of QSIs to mitigate biofilm related challenges in a number of commercial applications. The potential of QSIs in microbially influenced corrosion for future applications is also discussed.
Safety of hospital discharge before return of bowel function after elective colorectal surgery
Publisher: Oxford University Press (OUP)
Date: 24-01-2020
DOI: 10.1002/BJS.11422
Abstract: Ileus is common after colorectal surgery and is associated with an increased risk of postoperative complications. Identifying features of normal bowel recovery and the appropriateness for hospital discharge is challenging. This study explored the safety of hospital discharge before the return of bowel function. A prospective, multicentre cohort study was undertaken across an international collaborative network. Adult patients undergoing elective colorectal resection between January and April 2018 were included. The main outcome of interest was readmission to hospital within 30 days of surgery. The impact of discharge timing according to the return of bowel function was explored using multivariable regression analysis. Other outcomes were postoperative complications within 30 days of surgery, measured using the Clavien–Dindo classification system. A total of 3288 patients were included in the analysis, of whom 301 (9·2 per cent) were discharged before the return of bowel function. The median duration of hospital stay for patients discharged before and after return of bowel function was 5 (i.q.r. 4–7) and 7 (6–8) days respectively (P & 0·001). There were no significant differences in rates of readmission between these groups (6·6 versus 8·0 per cent P = 0·499), and this remained the case after multivariable adjustment for baseline differences (odds ratio 0·90, 95 per cent c.i. 0·55 to 1·46 P = 0·659). Rates of postoperative complications were also similar in those discharged before versus after return of bowel function (minor: 34·7 versus 39·5 per cent major 3·3 versus 3·4 per cent P = 0·110). Discharge before return of bowel function after elective colorectal surgery appears to be safe in appropriately selected patients.
Effect of heat treatment on the corrosion resistance and mechanical properties of an as-forged Mg–Zn–Y–Zr alloy
Publisher: Elsevier BV
Date: 03-2015
Ambient pressure dried flexible silica aerogel for construction of monolithic shape-stabilized phase change materials
Publisher: Elsevier BV
Date: 10-2019
Technology vision
Publisher: Informa UK Limited
Date: 06-2013
In vitro corrosion of magnesium alloy AZ31 — a synergetic influence of glucose and Tris
Publisher: Springer Science and Business Media LLC
Date: 12-05-2018
Advances in functionalized polymer coatings on biodegradable magnesium alloys – A review
Publisher: Elsevier BV
Date: 10-2018
DOI: 10.1016/J.ACTBIO.2018.08.030
Abstract: Magnesium (Mg) and its alloys have become a research frontier in biodegradable materials owing to their superior biocompatibility and excellent biomechanical compatibility. However, their high degradation rate in the physiological environment should be well tackled prior to clinical applications. This review summarizes the latest progress in the development of polymeric coatings on biodegradable Mg alloys over the last decade, regarding preparation strategies for polylactic acid (PLA), poly (latic-co-glycolic) acid (PLGA), polycaprolactone (PCL), polydopamine (PDA), chitosan (CS), collagen (Col) and their composite, and their performance in terms of corrosion resistance and biocompatibility. Feasible perspectives and developing directions of next generation of polymeric coatings with respect to biomedical Mg alloys are briefly discussed. Magnesium (Mg) and its alloys have become a research frontier in biodegradable materials owing to their superior biocompatibility and suitable biomechanical compatibility. However, the principal drawback of Mg-based implants is their poor corrosion resistance in physiological environments. Hence, it is vital to mitigate the degradation/corrosion behavior of Mg alloys for safe biomedical deployments. This review summarizes the latest progress in development of polymeric coatings on biomedical Mg alloys regarding preparation strategy, corrosion resistance and biocompatibility, including polylactic acid (PLA), poly (latic-co-glycolic) acid (PLGA), polycaprolactone (PCL), chitosan (CS), polydopamine (PDA), collagen (Col) and their composite. In addition, functionalized polymer coatings with Mg alloys exhibits a promising prospect owing to their ability of degradation along with biocompatibility, self-healing, drug-delivery and osteoinduction.
Corrosion resistance of nanostructured magnesium hydroxide coating on magnesium alloy AZ31: influence of EDTA
Publisher: Springer Science and Business Media LLC
Date: 04-02-2019
In vitro corrosion of pure Mg in phosphate buffer solution—Influences of isoelectric point and molecular structure of amino acids
Publisher: Elsevier BV
Date: 12-2019
DOI: 10.1016/J.MSEC.2019.110042
Abstract: Influences of proteins on degradation of magnesium alloys are of great significance but not well understood. In particular the roles of amino acids, the basic unit of proteins in regulating the progress of biodegradation of magnesium based materials remain unclear. This study aims to investigate the impacts of alanine, glutamic acid and lysine on degradation of pure magnesium in phosphate buffer solution through SEM, XPS, FTIR, potentiodynamic polarisation curves, electrochemical impedance spectroscopy and immersion tests. The changed contents of amino acids in solutions were detected by UV-vis spectrophotometer. Results demonstrate that the charges of the selected amino acids imposed significant contribution to suppressing the degradation of pure magnesium in phosphate buffer solution. The presence of amino acids led to the formation of phosphate-based corrosion products, increasing free corrosion potential, and reduction in corrosion current density and solution pH depending on their isoelectric points and molecular structures. A plausible corrosion mechanism organised by amino acids on pure magnesium was proposed.
The First Organically Templated Beryllium Phosphite [NH3(CH2)3NH3]·Be3 (HPO3)4: Hydrothermal Synthesis and X-ray Crystal S
Publisher: American Chemical Society (ACS)
Date: 12-12-2003
DOI: 10.1021/CG034116T
Permanganate, Molybdate and Vanadate Conversion Coatings
Publisher: Springer International Publishing
Date: 2022
Visible-Light-Responsive UiO-66(Zr) with Defects Efficiently Promoting Photocatalytic CO2 Reduction
Publisher: American Chemical Society (ACS)
Date: 17-06-2022
Abstract: It is of great importance to understand the relationship between the structure and properties at the atomic level, which provides a solid platform for the design of efficient heterogeneous catalysts. However, it remains a challenge to elucidate the roles of the structure of reaction sites in the catalytic activity of active sites due to the lack of understanding of the structure of specific active site species. Herein, taking the metal-organic framework (MOF) UiO-66(Zr) as a prototype, MOF catalysts with all-solid-state frustrated Lewis pairs (FLPs) Zr
In vitro evaluation of biodegradable magnesium alloys containing micro-alloying additions of strontium, with and without zinc
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TB01516B
Abstract: (a) Alloying of microlevels of Sr do not promote the in vitro cathodic reaction, whilst it slightly moderates the anodic kinetics of Mg in MEM and (b) adopted microadditions of Sr around its solid solubility in a Mg implant favourable for bone growth.
Effect of rolling-induced microstructure on corrosion behaviour of an as-extruded Mg-5Li-1Al alloy sheet
Publisher: Elsevier BV
Date: 05-2017
Investigating the Structure of the Surface Film on a Corrosion Resistant Mg-Li(-Al-Y-Zr) Alloy
Publisher: Association for Materials Protection and Performance (AMPP)
Date: 2019
DOI: 10.5006/2995
On the surface properties of biodegrading magnesium and its alloys: A survey and discussion
Publisher: IOP Publishing
Date: 24-11-2016
Corrosion-Resistant Electrochemical Platings on Magnesium Alloys: A State-of-the-Art Review
Publisher: Association for Materials Protection and Performance (AMPP)
Date: 06-2012
DOI: 10.5006/I0010-9312-68-6-518
Abstract: Industrial deployment of magnesium alloys in most instances requires anti-corrosion coatings. Distinct from conversion coatings, the electro/electroless plating techniques are emerging as the common means of coating magnesium however, more research is needed. A state-of-the-art review was undertaken with respect to aqueous plating systems (including pretreatment, under-coating, and electroplating), electroless plating (being treated in idually, though it is used as undercoating for subsequent plating in some cases), non-aqueous plating systems (including high-temperature molten salts and ionic liquids), and novel plating methods. In addition to the performance assessment of various plated coatings on magnesium alloys, merits and demerits of existing plating techniques are discussed. Based on the literature to date, the practical issues faced in magnesium plating are raised, and possible advances discussed, providing some instructive guidelines for future work.
Technical note: experimental survey of corrosion potentials for rare earth metals Ce, Er, Gd, La, and Nd as a function of pH and chloride concentration
Publisher: Association for Materials Protection and Performance (AMPP)
Date: 04-2014
DOI: 10.5006/1146
An Initial Assessment of the Effects of Increased Ni and V Content in A356 and AA6063 Alloys
Publisher: Wiley
Date: 22-02-2013
First coordination complex-linked vanadium selenite, [Cu(phen)]2V2Se2O11: hydrothermal synthesis and crystal structure
Publisher: Royal Society of Chemistry (RSC)
Date: 28-03-2002
DOI: 10.1039/B201955H
Multilayer Coating Strategies for Magnesium Alloys
Publisher: CRC Press
Date: 30-06-2023
Effect of vacuum system base pressure on corrosion resistance of sputtered Al thin films
Publisher: The Electrochemical Society
Date: 2014
DOI: 10.1149/2.056404JES
Investigating the Passivity and Dissolution of a Corrosion Resistant Mg-33at.%Li Alloy in Aqueous Chloride Using Online ICP-MS
Publisher: The Electrochemical Society
Date: 2016
DOI: 10.1149/2.0871606JES
Double-layered manganese phosphate conversion coating on magnesium alloy AZ91D: Insights into coating formation, growth and corrosion resistance
Publisher: Elsevier BV
Date: 02-2013
A new strategy to fabricate nanoporous iron-based metallic glasses: Selective phase tailoring of amorphous-nanocrystalline composite alloys through electrochemical dissolution
Publisher: Elsevier BV
Date: 05-2017
Hydrothermal synthesis and structural characterization of two organically templated zincophosphites with three-dimensional frameworks, (C6H14N2)·[Zn3(HPO3)4] and (C4H12N2)·[Zn3(HPO3)4]
Publisher: Elsevier BV
Date: 2004
Covalent Organic Framework with Multiple Redox Active Sites for High-Performance Aqueous Calcium Ion Batteries
Publisher: American Chemical Society (ACS)
Date: 08-2023
DOI: 10.1021/JACS.3C04657
Electrochemical behaviour and corrosion of Mg–Y alloys
Publisher: Elsevier BV
Date: 06-2011
Timing of nasogastric tube insertion and the risk of postoperative pneumonia: an international, prospective cohort study
Publisher: Wiley
Date: 18-09-2020
DOI: 10.1111/CODI.15311
Abstract: Aspiration is a common cause of pneumonia in patients with postoperative ileus. Insertion of a nasogastric tube (NGT) is often performed, but this can be distressing. The aim of this study was to determine whether the timing of NGT insertion after surgery (before versus after vomiting) was associated with reduced rates of pneumonia in patients undergoing elective colorectal surgery. This was a preplanned secondary analysis of a multicentre, prospective cohort study. Patients undergoing elective colorectal surgery between January 2018 and April 2018 were eligible. Those receiving a NGT were ided into three groups, based on the timing of the insertion: routine NGT (inserted at the time of surgery), prophylactic NGT (inserted after surgery but before vomiting) and reactive NGT (inserted after surgery and after vomiting). The primary outcome was the development of pneumonia within 30 days of surgery, which was compared between the prophylactic and reactive NGT groups using multivariable regression analysis. A total of 4715 patients were included in the analysis and 1536 (32.6%) received a NGT. These were classified as routine in 926 (60.3%), reactive in 461 (30.0%) and prophylactic in 149 (9.7%). Two hundred patients (4.2%) developed pneumonia (no NGT 2.7% routine NGT 5.2% reactive NGT 10.6% prophylactic NGT 11.4%). After adjustment for confounding factors, no significant difference in pneumonia rates was detected between the prophylactic and reactive NGT groups (odds ratio 1.03, 95% CI 0.56–1.87, P = 0.932). In patients who required the insertion of a NGT after surgery, prophylactic insertion was not associated with fewer cases of pneumonia within 30 days of surgery compared with reactive insertion.
Three Scandium Compounds with Unsaturated Coordinative Metal Sites – Structures and Catalysis
Publisher: Wiley
Date: 22-01-2015
A new generation of energy storage electrode materials constructed from carbon dots
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9QM00554D
Abstract: This review summarizes the recent progress in the design and preparation of multiple electrochemical energy storage devices utilizing carbon dots, and elaborates the positive effects of carbon dots on the resulting electrodes and devices.
The mechanism of aqueous stress-corrosion cracking of α + β titanium alloys
Publisher: Elsevier BV
Date: 08-2017
Coherent interface strengthening of ultrahigh pressure heat-treated Mg-Li-Y alloys
Publisher: Elsevier BV
Date: 08-2020
A simple route towards a hydroxyapatite-Mg(OH)2 conversion coating for magnesium
Publisher: Elsevier BV
Date: 06-2011
Inhibitory behaviour and adsorption stability of benzothiazole derivatives as corrosion inhibitors towards galvanised steel
Publisher: Royal Society of Chemistry (RSC)
Date: 2024
DOI: 10.1039/D3ME00153A
Amino-MIL-53(Al)-Nanosheets@Nafion Composite Membranes with Improved Proton/Methanol Selectivity for Passive Direct Methanol Fuel Cells
Publisher: American Chemical Society (ACS)
Date: 21-07-2020
In vitrocorrosion survey of Mg–xCa and Mg–3Zn–yCa alloys with and without calcium phosphate conversion coatings
Publisher: Informa UK Limited
Date: 08-2012
In vitro behavior of human osteoblast-like cells (SaOS2) cultured on surface modified titanium and titanium-zirconium alloy
Publisher: Elsevier BV
Date: 10-2011
Corrosion protection of magnesium and its alloys by metal phosphate conversion coatings
Publisher: Informa UK Limited
Date: 26-12-2014
Effect of water presence on choline chloride-2urea ionic liquid and coating platings from the hydrated ionic liquid
Publisher: Springer Science and Business Media LLC
Date: 06-07-2016
DOI: 10.1038/SREP29225
Abstract: In the present study, hygroscopicity of the choline chloride-urea (ChCl-2Urea) ionic liquid (IL) was confirmed through Karl-Fisher titration examination, indicating that the water content in the hydrated ChCl-2Urea IL was exposure-time dependent and could be tailored by simple heating treatment. The impact of the absorbed water on the properties of ChCl-2Urea IL, including viscosity, electrical conductivity, electrochemical window and chemical structure was investigated. The results show that water was able to dramatically reduce the viscosity and improve the conductivity, however, a broad electrochemical window could be persisted when the water content was below ~6 wt.%. These characteristics were beneficial for producing dense and compact coatings. Nickel (Ni) coatings plating from hydrated ChCl-2Urea IL, which was selected as an ex le to show the effect of water on the electroplating, displayed that a compact and corrosion-resistant Ni coating was plated from ChCl-2Urea IL containing 6 wt.% water doped with 400 mg/L NA at a moderate temperature. As verified by FTIR analysis, the intrinsic reason could be ascribed that water was likely linked with urea through strong hydrogen bond so that the water decomposition was suppressed during plating. Present study may provide a reference to prepare some similar water-stable ILs for plating.
Hydrothermal Syntheses and Crystal Structures of Complex-Linked Three-Dimensional Coordination Vanadium Selenites: M(4,4‘-bipy)(H2O)V2Se2O10 (M = Co, Ni)
Publisher: American Chemical Society (ACS)
Date: 11-01-2003
DOI: 10.1021/IC026037X
Abstract: Two inorganic-organic hybrid compounds with the formula M(4,4'-bipy)(H(2)O)V(2)Se(2)O(10) (M = Co, Ni) were hydrothermally synthesized and characterized by single-crystal X-ray diffraction. Compounds Co(4,4'-bipy)(H(2)O)V(2)Se(2)O(10) (1) and Ni(4,4'-bipy)(H(2)O)V(2)Se(2)O(10) (2), which are structural analogues, crystallize in the triclinic space group Ponemacr with crystal data a = 7.9665(3) A, b = 8.1974(3) A, c = 13.8096(4) A, alpha = 85.704(2) degrees, beta = 73.5180(10) degrees, gamma = 75.645(2) degrees, V = 837.76(5) A(3), and Z = 2 and a = 7.9489(19) A, b = 8.128(2) A, c = 13.709 A, alpha = 85.838(6) degrees, beta = 73.736(8) degrees, gamma = 75.594(9) degrees, V = 823.5(4) A(3), and Z = 2, respectively. [M(4,4'-bipy)(H(2)O)V(2)Se(2)O(10)] (M = Co, Ni) have a three-dimensional structure and consist of two subunits, [(VO(2))(SeO(3))](-) infinite chains and [M(4,4'-bipy)(H(2)O)](2+) fragments. The [(VO(2))(SeO(3))](-) chains are composed of [V(2)Se(4)O(14)](4)(-) clusters linked by VO(4)N triangular bipyramids. The 4,4'-bipy molecule as a bifunctional organic ligand is directly linked to Co or Ni and V atoms, affording the three-dimensionality. The compounds were characterized by infrared spectroscopy and differential thermal and thermogravimetric analyses.
The importance of particle size in porous titanium and nonporous counterparts for surface energy and its impact on apatite formation
Publisher: Elsevier BV
Date: 07-2009
DOI: 10.1016/J.ACTBIO.2009.02.027
Abstract: The importance of particle size in titanium (Ti) fabricated by powder metallurgy for the surface energy and its impact on the apatite formation was investigated. Four sorts of Ti powders of different mean particle size were realized through 20min, 2h, 5h and 8h of ball milling, respectively. Each sort of Ti powder was used to fabricate porous Ti and its nonporous counterparts sharing similar surface morphology, grain size and chemical composition, and then alkali-heat treatment was conducted on them. Surface energy was measured on the surfaces of the nonporous Ti counterparts due to the difficulty in measuring the porous surfaces directly. The surface energy increase on the alkali-heat-treated porous and nonporous Ti was observed due to the decrease in the particle size of the Ti powders and the presence of Ti-OH groups brought by the alkali-heat treatment. The apatite-inducing ability of the alkali-heat-treated porous and nonporous Ti with different surface energy values was evaluated in modified simulated body fluid and results indicated that there was a strong correlation between the apatite-inducing ability and the surface energy. The alkali-heat-treated porous and nonporous Ti discs prepared from the powders with an average particle size of 5.89+/-0.76microm possessed the highest surface energy and the best apatite-inducing ability when compared to the s les produced from the powders with the average particle size varying from 19.79+/-0.31 to 10.25+/-0.39microm.
Hydrothermal synthesis and structural characterization of an organically-templated zincophosphite: [C4N2H12]0.5·[Zn3(HPO3)4]·H3O
Publisher: Elsevier BV
Date: 06-2003
Effect of volume fraction of LPSO phases on corrosion and mechanical properties of Mg-Zn-Y alloys
Publisher: Elsevier BV
Date: 05-2017
The unexpected role of benzotriazole in mitigating magnesium alloy corrosion: A nucleating agent for crystalline nanostructured magnesium hydroxide film
Publisher: The Electrochemical Society
Date: 2015
DOI: 10.1149/2.0781508JES
Recent advances in biodegradation controls over Mg alloys for bone fracture management: A review
Publisher: Elsevier BV
Date: 04-2019
Stable isomeric layered indium coordination polymers for high proton conduction
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1CE01107C
Abstract: Stable isomeric layered indium coordination polymers with different coordinated anionic sites for high proton conduction.
Research on device and method of vision inspection of a vehicle dashboard framework
Publisher: IEEE
Date: 08-2011
Evading strength-corrosion tradeoff in Mg alloys via dense ultrafine twins
Publisher: Springer Science and Business Media LLC
Date: 29-07-2021
DOI: 10.1038/S41467-021-24939-3
Abstract: Conventional ultrafine-grains can generate high strength in Mg alloys, but significant tradeoff of corrosion resistance due to inclusion of a large number of non-equilibrium grain boundaries. Herein, an ultrafine-grain structure consisting of dense ultrafine twins is prepared, yielding a high strength up to 469 MPa and decreasing the corrosion rate by one order of magnitude. Generally, the formation of dense ultrafine twins in Mg alloys is rather difficult, but a carefully designed multi-directional compression treatment effectively stimulates twinning nucleation within twins and refines grain size down to 300 nm after 12-passes compressions. Grain-refinement by low-energy twins not only circumvents the detrimental effects of non-equilibrium grain boundaries on corrosion resistance, but also alters both the morphology and distribution of precipitates. Consequently, micro-galvanic corrosion tendency decreases, and severe localized corrosion is suppressed completely. This technique has a high commercial viability as it can be readily implemented in industrial production.
Corrosion resistance of Mg(OH)2/Mg–Al-layered double hydroxide coatings on magnesium alloy AZ31: influence of hydrolysis degree of silane
Publisher: Springer Science and Business Media LLC
Date: 11-04-2019
Efficient Oxygen Electrocatalyst for Zn-Air Batteries: Carbon Dots and Co
Publisher: American Chemical Society (ACS)
Date: 03-04-2019
Abstract: Non-noble metal-based bifunctional electrocatalysts for both oxygen reduction reactions (ORRs) and oxygen evolution reactions (OERs) are an essential component of high-performance rechargeable Zn-air batteries (ZABs). Herein, we report a novel and simple method for preparing Co
Self-assembly engineering toward large-area defect-rich TiO2(B) nanosheets-based free-standing films for high-performance lithium-ion batteries
Publisher: Elsevier BV
Date: 02-2020
Corrosion resistance of bioinspired DNA-induced Ca–P coating on biodegradable magnesium alloy
Publisher: Elsevier BV
Date: 03-2019
Fabrication and characterization of an actively protective Mg-Al LDHs/Al2O3 composite coating on magnesium alloy AZ31
Publisher: Elsevier BV
Date: 09-2019
Microstructure evolution and mechanical property improvement of aluminum alloys with high magnesium content during continuous rheo-extrusion
Publisher: Elsevier BV
Date: 12-2018
Advances in coatings on biodegradable magnesium alloys
Publisher: Elsevier BV
Date: 03-2020
Effect of coordinated water of hexahydrate on nickel platings from choline–urea ionic liquid
Publisher: Springer Science and Business Media LLC
Date: 27-04-2018
Investigating ion release using inline ICP during in situ scratch testing of an Mg-Li(-Al-Y-Zr) alloy
Publisher: Elsevier BV
Date: 02-2019
A stable nanoscaled Zr-MOF for the detection of toxic mycotoxin through a pH-modulated ratiometric luminescent switch
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CC01006E
Abstract: A stable nanoscaled single-excitation ratiometric luminescent pH sensor ( MPDB-PCN ) for highly sensitive real-time detection of toxic mycotoxin (3-NPA) in complicated environments.
Surface states of carbon dots and their influences on luminescence
Publisher: AIP Publishing
Date: 17-06-2020
DOI: 10.1063/1.5143819
Abstract: Luminescent carbon dots (CDs) have received increasing attention from many fields during the past decade. Unfortunately, the luminescent mechanisms of CDs remain unclear due to insufficient experimental and theoretical knowledge, which significantly hinders the development of CDs with desired optical properties. Currently, surface states of CDs, which are based on synergistic hybridization between the carbon backbones and the connected functional groups, have been considered as the dominant luminescence origins. This tutorial paper, thus, aims to offer an overview of the key features on the surface of CDs, such as particle size, surface functional groups, defects and heteroatom doping, and their influences on the photoluminescence of CDs. In addition, optical characteristics of surface state-derived luminescence emissions of CDs are also summarized. Finally, the potential approaches of characterizing surface states of CDs are introduced, followed by an outlook of synthesizing high-quality CDs through modulation of the surface states.
Hydrothermal syntheses and structures of two novel vanadium selenites, {[VO(OH)(H2O)](SeO3)}4·2H2O and (H3NCH2CH2NH3)[(VO)(SeO3)2]
Publisher: Elsevier BV
Date: 04-2003
Fabrication of a silver nanoparticle-coated collagen membrane with anti-bacterial and anti-inflammatory activities for guided bone regeneration
Publisher: IOP Publishing
Date: 02-10-2018
Additive Manufacturing for Magnesium Alloys and Composites
Publisher: CRC Press
Date: 30-06-2023
Synthesis and Self-Assembly of Large-Area Cu Nanosheets and Their Application as an Aqueous Conductive Ink on Flexible Electronics
Publisher: American Chemical Society (ACS)
Date: 13-12-2013
DOI: 10.1021/AM404708Z
Abstract: Large-area Cu nanosheets are synthesized by a strategy of Cu nanocrystal self-assembly, and then aqueous conductive Cu nanosheet ink is successfully prepared for direct writing on the conductive circuits of flexible electronics. The Cu nanocrystals, as building blocks, self-assemble along the [111] direction and grow into large-area nanosheets approximately 30-100 μm in diameter and a few hundred nanometers in thickness. The laminar stackable patterns of the Cu nanosheet circuits increase the contact area of the Cu nanosheets and improve the stability of the conductor under stress, the result being that the Cu nanosheet circuits display excellent conductive performance during repeated folding and unfolding. Moreover, heterostructures of Ag nanoparticle-coated Cu nanosheets are created to improve the thermal stability of the nanosheet circuits at high temperatures.
Hydrothermal synthesis and characterization of organically templated zincophosphites with two- and three-dimensional structures, [CH3CH(NH3)CH2NH3]·[Zn2(HPO3)3]·H2O and [H3N(CH2)6NH3]·[Zn3(HPO3)4]
Publisher: Elsevier BV
Date: 08-2003
Multifunctional flexible composite aerogels constructed through in-situ growth of metal-organic framework nanoparticles on bacterial cellulose
Publisher: Elsevier BV
Date: 2019
Microstructures and bond strengths of the calcium phosphate coatings formed on titanium from different simulated body fluids
Publisher: Elsevier BV
Date: 2009
Saccharomyces-derived carbon dots for biosensing pH and vitamin B 12
Publisher: Elsevier BV
Date: 04-2019
DOI: 10.1016/J.TALANTA.2018.11.010
Abstract: Photoluminescence(PL) nano-biosensors that can be used for accurately and reliably monitoring pH and vitamin hold a great promise in biology and medicine. Herein, a high quantum yield of 16% saccharomyces-derived N-doped carbon dots (s-N-CDs) was synthesized through a simple and one-pot microwave-assisted hydrothermal approach. The produced s-N-CDs are an excellent multi-functional biosensor for the applications of pH sensing and vitamin probing. Fluorescence intensity and fluorescence lifetime dramatically increases with pH decreasing from 14 to 2. Moreover, the fluorescence intensity presents highly reversible abilty from 13 to 2 without any profound attenuation after ten consecutive circles. More importantly, the CDs prepared herein are sound option for assaying cobalamin (VB 12) based fluorescence resonance energy transfer (FRET) with a superior low detection limit of 2.19 μM.
Marine Vibrio spp. protect carbon steel against corrosion through secreting extracellular polymeric substances
Publisher: Springer Science and Business Media LLC
Date: 25-01-2022
DOI: 10.1038/S41529-021-00212-2
Abstract: The protection of marine materials against corrosion using marine bacterial biofilms is a promising strategy. However, little is known about the mechanisms of this attractive corrosion prevention method. In this work, the corrosion behaviors of X80 carbon steel (CS) in the presence of three different marine Vibrio species were studied. The results demonstrated that all the three Vibrio spp. displayed significant corrosion protection with a weight loss reduction of up to 68%. Moreover, their corrosion prevention performance was tightly related to their abilities to form biofilms, which was in the order of Vibrio sp. EF187016 Vibrio alginolyticus Vibrio parahaemolyticus . To further investigate the corrosion prevention mechanism caused by marine biofilms, the extracellular polymeric substances (EPS) of Vibrio sp. EF187016 was extracted and added to 3.5 wt% NaCl for abiotic corrosion testing. The results suggested that the EPS inhibited corrosion, which means EPS can play a significant role in corrosion protection by biofilm.
Porous organic polymer enriched in Re functional units and Lewis base sites for efficient CO2 photoreduction
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1CY01311D
Abstract: A porous organic polymer, BTN-Re, which contains two functional units, exhibits outstanding ability for CO 2 photoreduction.
Unexpected cathodic role of Mg41Sm5 phase in mitigating localized corrosion of extruded Mg-Sm-Zn-Zr alloy in NaCl solution
Publisher: Elsevier BV
Date: 10-2019
Performance evaluation of high-pressure die-cast magnesium alloys
Publisher: Springer International Publishing
Date: 2017
Conversion coatings of Mg-alloy AZ91D using trihexyl(tetradecyl) phosphonium bis(trifluoromethanesulfonyl)amide ionic liquid
Publisher: Springer Science and Business Media LLC
Date: 12-07-2012
Gallium-Strontium Phosphate Conversion Coatings for Promoting Infection Prevention and Biocompatibility of Magnesium for Orthopedic Applications
Publisher: American Chemical Society (ACS)
Date: 16-05-2022
DOI: 10.1021/ACSBIOMATERIALS.2C00099
Abstract: Device-associated infections remain a clinical challenge. The common strategies to prevent bacterial infection are either toxic to healthy mammalian cells and tissue or involve high doses of antibiotics that can prompt long-term negative consequences. An antibiotic-free coating strategy to suppress bacterial growth is presented herein, which concurrently promotes bone cell growth and moderates the dissolution kinetics of resorbable magnesium (Mg) biomaterials. Pure Mg as a model biodegradable material was coated with gallium-doped strontium-phosphate through a chemical conversion process. Gallium was distributed in a gradual manner throughout the strontium-phosphate coating, with a compact structure and a gallium-rich surface. It was demonstrated that the coating protected the underlying Mg parts from significant degradation in minimal essential media at physiological conditions over 9 days. In terms of bacteria culture, the liberated gallium ions from the coatings upon Mg specimens, even though in minute quantities, inhibited the growth of Gram-positive
Enhancing Corrosion Resistance by a Hydrophobic Surface Feature for Magnesium Alloy AZ91D
Publisher: Wiley
Date: 02-2014
Application of Cu
Publisher: American Chemical Society (ACS)
Date: 17-05-2017
Abstract: In this research, we reported the synthesis of quaternary Cu
Recent Advances in LPSO-Containing Wrought Magnesium Alloys: Relationships Between Processing, Microstructure, and Mechanical Properties
Publisher: Springer Science and Business Media LLC
Date: 19-06-2019
Preparation of porous carbon electrodes from semen cassiae for high-performance electric double-layer capacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C7NJ04922F
Abstract: A mild and effective activation process for high-performance carbon based electric double-layer capacitors.
What is going on in magnesium alloys?
Publisher: Elsevier BV
Date: 02-2018
Review of corrosion-resistant conversion coatings for magnesium and its alloys
Publisher: Association for Materials Protection and Performance (AMPP)
Date: 03-2011
DOI: 10.5006/1.3563639
Exploring As-Cast PbCaSn-Mg Anodes for Improved Performance in Copper Electrowinning
Publisher: Springer Science and Business Media LLC
Date: 05-03-2018
In vitro corrosion resistance of a layer-by-layer assembled DNA coating on magnesium alloy
Publisher: Elsevier BV
Date: 11-2018
Investigating the effect of water content in supercritical CO2 as relevant to the corrosion of Carbon capture and storage pipelines
Publisher: Association for Materials Protection and Performance (AMPP)
Date: 22-08-2014
DOI: 10.5006/0944
Abstract: Steel coupons were exposed to a supercritical carbon dioxide (CO2) environment in which water contamination was deliberately added over the range from 100 ppmw to 50,000 ppmw. Exposure was carried out in a laboratory scale autoclave at 8 MPa and 40°C for 7 days. Contaminant water in CO2 permits the speciation of carbonic acid (H2CO3), which can itself be a threat to durability, but also permit further contaminants to segregate to the aqueous acid phase. A systematic investigation of corrosion in supercritical CO2 over a range of water concentrations is lacking in the literature, despite being a significant elementary issue. Herein, weight-loss tests were performed, and subsequent scanning electron microscopy suggested all specimens displayed some extent of corrosion. The main corrosion mechanism observed was uniform corrosion. Supplementary optical profilometry suggested that water concentration has a small effect on any pitting corrosion that occurred. In general, increased mass loss was observed with an increase in water concentration beyond ~1,000 ppmw H2O, concomitant with a rate of change in the H2CO3 concentration.
Growth behavior of MgAl-layered double hydroxide films by conversion of anodic films on magnesium alloy AZ31 and their corrosion protection
Publisher: Elsevier BV
Date: 10-2018
Inspection of Car Body Gaps Based on Stereo Vision
Publisher: Trans Tech Publications, Ltd.
Date: 03-2014
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.543-547.1175
Abstract: The car body gaps affect the vehicle sealing, in turn affect the performance of windproof and rainproof. Traditional inspection method cannot meet the requirement of on-line detection. The non-contact detection method is proposed for the car body gaps inspection in this paper. The gap area is taken by two cameras, and the information is obtained by image processing. The key is contour extraction, and the Snake method based on non-initialized level set is used in this article. The finally contour extraction result is exported by updating the profile curve. The experimental results show that the gaps inspection method based on stereo vision can meet the requirements of high-precision and not-contact detection, and the absolute errors of width and flush are 0.0605mm, 0.0712mm respectively. Furthermore, it can meet the requirements of on-line inspection.
A comparative study of cell growth on a cold sprayed Ti–Ta composite
Publisher: Elsevier BV
Date: 06-2020
Delicately designed Sn-based electrode material via spray pyrolysis for high performance lithium-ion battery
Publisher: Elsevier BV
Date: 09-2019
A Dual Role of Graphene Oxide Sheet Deposition on Titanate Nanowire Scaffolds for Osteo-implantation: Mechanical Hardener and Surface Activity Regulator
Publisher: Springer Science and Business Media LLC
Date: 21-12-2015
DOI: 10.1038/SREP18266
Abstract: Scaffold biomaterials with open pores and channels are favourable for cell growth and tissue regeneration, however the inherent poor mechanical strength and low surface activity limit their applications as load-bearing bone grafts with satisfactory osseointegration. In this study, macro-porous graphene oxide (GO) modified titanate nanowire scaffolds with desirable surface chemistry and tunable mechanical properties were prepared through a simple hydrothermal process followed by electrochemical deposition of GO nanosheets. The interconnected and porous structure of the GO/titanate nanowire scaffolds provides a large surface area for cellular attachment and migration and displays a high compressive strength of approximately 81.1 MPa and a tunable Young’s modulus over the range of 12.4–41.0 GPa, which satisfies site-specific requirements for implantation. Surface chemistry of the scaffolds was modulated by the introduction of GO, which endows the scaffolds flexibility in attaching and patterning bioactive groups (such as -OH, -COOH and -NH 2 ). In vitro cell culture tests suggest that the GO/titanate nanowire scaffolds act as a promising biomaterial candidate, in particular the one terminated with -OH groups, which demonstrates improved cell viability and proliferation, differentiation and osteogenic activities.
Layer-structured coordination polymers based on 5-(1: H -tetrazol-5-yl)isophthalic acid: Structure, sensitization of lanthanide(III) cations and small-molecule sensing
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6CE00883F
Abstract: Compound 1 can serve as a host for encapsulation of Ln 3+ ions.
Design and preparation of nanoporous Ag-Cu alloys by dealloying Mg-(Ag,Cu)-Y metallic glasses for antibacterial applications
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TB00148D
Abstract: Highly antibacterial and long-term oxidation-resistant nanoporous Ag–Cu alloys were fabricated by dealloying Mg–(Ag,Cu)–Y metallic glasses.
Biocompatible strontium-phosphate and manganese-phosphate conversion coatings for magnesium and its alloys
Publisher: Elsevier
Date: 2015
Mercaptopropionic Acid-Capped Wurtzite Cu
Publisher: American Chemical Society (ACS)
Date: 02-01-2018
Abstract: In this research, we provide a simple but sound solution to address the low performance of lithium-ion batteries through preparation of wurtzite Cu
Synthesis of Ti-Sn-Nb alloy by powder metallurgy
Publisher: Elsevier BV
Date: 06-2008
Selective Laser Melting of Duplex Stainless Steel 2205: Effect of Post-Processing Heat Treatment on Microstructure, Mechanical Properties, and Corrosion Resistance
Publisher: MDPI AG
Date: 02-08-2019
DOI: 10.3390/MA12152468
Abstract: Additive manufacturing (AM) is a rapidly growing field of technology. In order to increase the variety of metal alloys applicable for AM, selective laser melting (SLM) of duplex stainless steel 2205 powder and the resulting microstructure, density, mechanical properties, and corrosion resistance were investigated. An optimal set of processing parameters for producing high density ( .9%) material was established. Various post-processing heat treatments were applied on the as-built predominantly ferritic material to achieve the desired dual-phase microstructure. Effects of annealing at temperatures of 950 °C, 1000 °C, 1050 °C, and 1100 °C on microstructure, crystallographic texture, and phase balance were examined. As a result of annealing, 40–46 vol.% of austenite phase was formed. Annealing decreased the high yield and tensile strength values of the as-built material, but significantly increased the ductility. Annealing also decreased the residual stresses in the material. Mechanical properties of the SLM-processed and heat-treated materials outperformed those of conventionally produced alloy counterparts. Using a scanning strategy with 66° rotation between layers decreased the strength of the crystallographic texture. Electrochemical cyclic potentiodynamic polarization testing in 0.6 M NaCl solution at room temperature showed that the heat treatment improved the pitting corrosion resistance of the as-built SLM-processed material.
Sc2(pydc)2 unit based 1D, 2D and 3D metal–organic frameworks as heterogeneous Lewis acid catalysts for cyanosilylation
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4DT03221G
Abstract: Three new Sc-MOFs have been synthesized using H 2 pydc linker and Sc( iii ) ions. 1 features a ladder-shaped chain, 2 displays a waved layer and 3 exhibits a (3,3)-connected nbo-a network. All three compounds exhibit good catalytic abilities for the cyanosilylation of aldehyde.
Synergistically and Sustainably Performed Inhibitors for Galvanised Steel Against Aqueous Corrosion
Publisher: Elsevier BV
Date: 04-2022
Hydrothermally prepared layered double hydroxide coatings for corrosion protection of Mg alloys – a critical review
Publisher: Elsevier BV
Date: 12-2022
Improving in vitro and in vivo antibacterial functionality of Mg alloys through micro-alloying with Sr and Ga
Publisher: Elsevier BV
Date: 11-2019
DOI: 10.1016/J.MSEC.2019.109926
Abstract: Despite of technical advancements in design and development of new biomaterials, device-related infections continue to occur and can be life-threatening. Differing from existing research work pertaining to introducing antibacterial function upon device surface, this study attempts to address such germ-infection issues through controlled release of antibacterial species from bulk gallium (Ga) and strontium (Sr) containing magnesium (Mg) alloys. To validate such a conceptual framework, Mg alloys containing micro-level concentrations of Ga and/or Sr (0.1 wt%) are employed as model materials, along with commercially pure Mg and titanium (Ti) as control groups. Biodegradation progress of such metal specimens is examined through pH and mass loss measurements, and inductively coupled plasma - atomic emission spectrometry (ICP-AES) as a function of immersion time in Trypticase Soy Broth (TSB) solution under physiological conditions. In vitro biocompatibility and antibacterial performance are characterised through MTT proliferation assay with human mesenchymal stem cells (hMSCs) and the spread plate method with three representative bacterial strains, i.e. S. aureus (ATCC 43300), E. coli (ATCC 25922), and S. epidermidis (ATCC 35984). Animal tests are performed through implanting target metal rods into femurs of Sprague Dawley rats, accompanied with injection of S. aureus to build a model of osteomyelitis. Results demonstrate that such lean additions of Ga and/or Sr reduce the degradation kinetics of Mg matrix, and the release of Ga
Heteroatom-doped carbon dots based catalysts for oxygen reduction reactions
Publisher: Elsevier BV
Date: 03-2019
DOI: 10.1016/J.JCIS.2018.11.024
Abstract: Carbon materials doped with heteroatoms are a class of cost-effective and stable electrocatalysts for oxygen reduction reactions (ORR), whose activities are mainly based on the heteroatom-related active sites. Besides the widely reported one-dimensional carbon nanotubes and two-dimensional graphene materials, carbon dots (CDs), as a new kind of zero-dimensional carbon materials, exhibit a range of unique structures and promising catalytic activities for ORR. In order to optimize the complex conditions of carbon-based catalysts, composites consisting of doped CDs and reduced graphene oxide (rGO) (designated as CD/rGO) are prepared hydrothermally, in comparison with directly doped rGO. All produced composites outperform their corresponding directly doped rGO counterparts in ORR measurements. It is noted that nitrogen and sulfur co-doped s les perform better than those doped by in idual N or S. Mechanistic relationships between the ORR catalytic activities and the catalyst features are proposed, including type, location, bonding, fraction and synergistic effects of dopants, as well as the composition and structure of the carbon substrates. It is apparent that doping heteroatoms and constructing carbon substrates play a synergistic role in yielding high-performance carbon based catalysts.
Construction of new zinc(II) coordination polymers by 1-(triazol-1-yl)-2,4,6-benzenetricarboxylate ligand for sensitizing lanthanide(III) ions and sensing small molecules
Publisher: Elsevier BV
Date: 09-2017
Two Three-Dimensional Metal−Organic Frameworks from Secondary Building Units of Zn8(OH)4(O2C−)12 and Zn2((OH)(O2C−)3: [Zn<
Publisher: American Chemical Society (ACS)
Date: 06-08-2003
DOI: 10.1021/CG034084+
Corrosion resistance and antibacterial activity of zinc-loaded montmorillonite coatings on biodegradable magnesium alloy AZ31
Publisher: Elsevier BV
Date: 10-2019
DOI: 10.1016/J.ACTBIO.2019.05.069
Abstract: A Zinc-loaded montmorillonite (Zn-MMT) coating was hydrothermally prepared using Zn
Ratio of total acidity to pH value of coating bath: A new strategy towards phosphate conversion coatings with optimized corrosion resistance for magnesium alloys
Publisher: Elsevier BV
Date: 04-2019
Synthesis of multiple-shell porous CeO2 hollow spheres by a hydrogel template method
Publisher: Elsevier BV
Date: 09-2013
A non-luminescent Eu-MOF-based turn-on sensor towards an anthrax biomarker through single-crystal to single-crystal phase transition.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9CC08206A
Abstract: A porous NH
Corrosion-resistant coatings for magnesium (Mg) alloys
Publisher: Elsevier
Date: 2013
A homogenisation pre-treatment for adherent and corrosion-resistant Ni electroplated coatings on Mg-alloy AZ91D
Publisher: Elsevier BV
Date: 02-2014
Elastic modulus and hardness of cortical and trabecular bovine bone measured by nanoindentation
Publisher: Elsevier BV
Date: 06-2006
Controlling initial biodegradation of magnesium by a biocompatible strontium phosphate conversion coating
Publisher: Elsevier BV
Date: 03-2014
DOI: 10.1016/J.ACTBIO.2013.11.016
Abstract: A simple strontium phosphate (SrP) conversion coating process was developed to protect magnesium (Mg) from the initial degradation post-implantation. The coating morphology, deposition rate and resultant phases are all dependent on the processing temperature, which determines the protective ability for Mg in minimum essential medium (MEM). Coatings produced at 80 °C are primarily made up of strontium apatite (SrAp) with a granular surface, a high degree of crystallinity and the highest protective ability, which arises from retarding anodic dissolution of Mg in MEM. Following 14 days' immersion in MEM, the SrAp coating maintained its integrity with only a small fraction of the surface corroded. The post-degradation effect of uncoated Mg and Mg coated at 40 and 80 °C on the proliferation and differentiation of human mesenchymal stem cells was also studied, revealing that the SrP coatings are biocompatible and permit proliferation to a level similar to that of pure Mg. The present study suggests that the SrP conversion coating is a promising option for controlling the early rapid degradation rate, and hence hydrogen gas evolution, of Mg implants without adverse effects on surrounding cells and tissues.
Analysing the degree of sensitisation in 5xxx series aluminium alloys using artificial neural networks: A tool for alloy design
Publisher: Elsevier BV
Date: 04-2019
Microwave Assisted Hydrothermal Way Towards Highly Crystalized N-Doped Carbon Quantum Dots and Their Oxygen Reduction Performance
Publisher: Springer Science and Business Media LLC
Date: 22-03-2019
Related Organisations
King's College Hospital
Location: United Kingdom of Great Britain and Northern Ireland
Related Funding Activities
High Performance Cast Magnesium Alloys
Start Date: 2014
End Date: 2019
Funder: Australian Research Council
View Funded ActivityBiodegradable Materials For Orthopaedic Implant
Start Date: Start date not available
End Date: End date not available
Funder: Australian Research Council
View Funded ActivityNovel Anodic Coating Of Magnesium Alloy Components For Corrosion Protection
Start Date: 2013
End Date: 2015
Funder: Australian Research Council
View Funded ActivityDiscovery Early Career Researcher Award - Grant ID: DE130100090
Start Date: 2013
End Date: 04-2016
Amount: $375,000.00
Funder: Australian Research Council
View Funded ActivityLinkage Projects - Grant ID: LP130100828
Start Date: 08-2014
End Date: 06-2018
Amount: $510,000.00
Funder: Australian Research Council
View Funded ActivityLinkage Projects - Grant ID: LP150100343
Start Date: 02-2016
End Date: 12-2023
Amount: $285,000.00
Funder: Australian Research Council
View Funded Activity