A5021509801- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- Advanced biosensing and bioanalysis techniques
- Electrocatalysts for Energy Conversion
- Analytical Chemistry and Sensors
- Advancements in Battery Materials
- Advanced battery technologies research
- Nanoparticles: synthesis and applications
- Conducting polymers and applications
- Advanced Battery Materials and Technologies
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanopore and Nanochannel Transport Studies
- Microfluidic and Bio-sensing Technologies
- Advanced Battery Technologies Research
- Advanced Chemical Sensor Technologies
- 2D Materials and Applications
- Biosensors and Analytical Detection
- Catalytic Processes in Materials Science
- Force Microscopy Techniques and Applications
- Fuel Cells and Related Materials
- Quantum Dots Synthesis And Properties
- CO2 Reduction Techniques and Catalysts
- Nanofabrication and Lithography Techniques
- Advanced Nanomaterials in Catalysis
- Microfluidic and Capillary Electrophoresis Applications
Hunan University
2018-2025
State Key Laboratory of Chemobiosensing and Chemometrics
2018-2025
Soochow University
2022-2024
Zhongnan University of Economics and Law
2023
Central South University
2023
Shenzhen Maternity and Child Healthcare Hospital
2022
Southern Medical University
2022
University of Electronic Science and Technology of China
2020
Northwestern University
2020
Changsha University
2018
Current spikes after collision: Analysis of current transients arising from impacts between the nanoparticles and an electrode surface (see picture) can be used to detect, identify, determine size silver nanoparticles. This provides exciting new strategy for characterization metal analytical environmental monitoring applications.
A one-step electrochemical approach to the synthesis of highly dispersed Pt nanoparticles on graphene has been proposed. The resultant NPs@G nanocomposite shows higher electrocatalytic activity and long-term stability towards methanol electrooxidation than NPs@Vulcan.
Homogeneous immunoassays represent an attractive alternative to traditional heterogeneous assays due their simplicity and high efficiency. electrochemical assays, however, are not commonly accessed the requirement of electrode immobilization recognition elements. Herein, we demonstrate a new homogeneous immunoassay based on aggregation-collision strategy for quantification tumor protein biomarker alpha-fetoprotein (AFP). The detection principle relies aggregation AgNPs induced by molecular...
Advanced techniques for both environmental and biological prescription drug monitoring are of ongoing interest. In this work, a fluorescent sensor based on an Eu3+-doped anionic zinc-based metal–organic framework (Eu3+@Zn-MOF) was constructed rapid visual analysis the molecule demecycline (DEM), achieving high sensitivity selectivity. The ligand 2-amino-[1,1′-biphenyl]-4,4′-dicarboxylic acid (bpdc-NH2) not only provides stable cyan fluorescence (467 nm) through intramolecular charge transfer...
A chip-based approach for electrochemical characterization and detection of microsomes exosomes based on direct electro-oxidation metal nanoparticles (MNPs) that specifically recognize surface markers these vesicles is reported. It found derived from prostate cancer cells can be identified by their proteins EpCAM PSMA, suggesting the potential use as diagnostic biomarkers. As a service to our authors readers, this journal provides supporting information supplied authors. Such materials are...
Gold nanoparticles (AuNPs) in aqueous 0.10 M HCl are shown to be electroactive at oxidising potentials greater than 1.0 V (vs. Ag/AgCl) by means of voltammetric monitoring AuNP–electrode collisions. The method promises the use anodic particle coulometry for detection and characterisation AuNPs.
Stromspitzen nach Zusammenstoß: Nanopartikel können durch Analyse von Stromtransienten, die beim Aufprall Nanopartikeln auf eine Elektrodenoberfläche entstehen, nachgewiesen, identifiziert und ihre Größe hin untersucht werden (siehe Bild). Diese erstaunliche neue Strategie zur Charakterisierung Metallnanopartikeln kann in Messinstrumenten für analytische ökologische Zwecke genutzt werden. Detailed facts of importance to specialist readers are published as "Supporting Information". Such...
Abstract Circulating tumor cells (CTCs) can be collected noninvasively and provide a wealth of information about phenotype. For this reason, their specific sensitive detection is intense interest. Herein, we report new, chip‐based strategy for the automated analysis cancer cells. The nanoparticle‐based, multi‐marker approach exploits direct electrochemical oxidation metal nanoparticles (MNPs) to on presence surface markers. assay allows simultaneous multiple different biomarkers surfaces...
The developing field of particle-impact electrochemistry is rapidly establishing itself as a powerful tool for the interpretation wide range phenomena associated with nanoparticles. In this article we present results showing characterisation nickel nanoparticles and, first time, mixture nanoparticles: in case and silver. former are shown not to aggregate aqueous solution whereas latter do. We report novel method determination on unknown concentrations sample demonstrate its use both...
The classical size effect of Pt particles on oxygen reduction reaction (ORR) suggests that the activity and durability would decrease with reducing particle size, self-limiting effectiveness in maximizing utilization efficiency particle-size-reduction strategy. Herein, we discover an anomalous based nanowires (NWs) tunable diameters, where monotonically increasing for ORR were observed decreasing diameter from 2.4 to 1.1 nm. Our results reveal dominant role increased compressive strain...
Abstract Alloying noble metal catalysts with early transition metals (ETMs) has shown great promise by simultaneously boosting catalytic activity and durability because of their strong electronic interactions. However, the very negative reduction potential ETMs posed challenges for synthesis desired alloy catalysts, not to mention structure‐controlled synthesis. Here an autocatalytic surface reduction‐assisted strategy is reported realize controllable ultrathin PtW nanowires (NWs). The...
Nanomedicine is promising for disease prevention and treatment, but there are still many challenges that hinder its rapid development. A major challenge to efficiently seek candidates with the desired therapeutic functions from tremendously available materials. Here, we report an integrated computational experimental framework alloy nanoparticles Materials Project library antibacterial applications, aiming learn inverse screening concept traditional medicine nanomedicine. Because strong...
A facile and disposable microfluidic device for rapid protein concentration was fabricated by using a direct printing process. Two printed V-shaped microchannels in mirror image orientation were separated 100 μm wide toner gap. When high electric field applied across the two channels, nanofissures formed breakdown at junction This with used as concentrator protein. Negatively charged proteins observed to concentrate anode side of upon application an this junction. Using device, about...
Informative collisions: The use of quantitative oxidative collisions between silver nanoparticles (AgNPs) and an electrode surface to monitor the aggregation single AgNPs into larger clusters is reported (see graph). Detailed facts importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please note: publisher responsible for content functionality any supporting information...
The study of impact processes between particles and electrode surfaces is less than 20 years old, has recently received added impetus due to the current intense interest in chemistry nanoparticles. In this review, we briefly appraise historical results recent developments field, consider its potentially wide-ranging applications.
The structure-function relationship of plasmon-enhanced electrochemistry (PEEC) is great importance for the design efficient PEEC catalysts, but rarely investigated at single nanoparticle level lack an nanoscale methodology. Herein, we report utilization impact to allow PEEC, where effect incident light on plasmonic Ag/Au nanoparticles accelerating cobalt metal-organic framework nanosheets (Co-MOFNs) catalyzed hydrogen evolution reaction (HER) systematically explored. It found that...
Advanced oxidation processes (AOPs) are the most efficient water cleaning technologies, but their applications face critical challenges in terms of mass/electron transfer limitations and catalyst loss/deactivation. Bipolar electrochemistry (BPE) is a wireless technique that promising for energy environmental applications. However, synergy between AOPs BPE has not been explored. In this study, by combining with AOPs, we develop general approach using carbon nanotubes (CNTs) as...
We developed an alcohol-free sol−gel approach to encapsulate biomolecules such as horseradish peroxidase (HRP) in electrochemically induced three-dimensional porous silica matrix by a one-step process. In this process, the generated hydroxyl ions at electrode surface applying cathodic current promote hydrolysis of ammonium fluorosilicate produce silica, and simultaneously hydrogen bubbles play important role forming matrix. If HRP is mixed with solution, it can be encapsulated Since there no...
The electrochemistry of collisions between metal nanoparticles (NPs) and electrode surfaces has been recent interest with the development anodic particle coulometry as a characterisation method. For first time underpotential deposition ions from solution onto during NPs an inert is reported.
The use of particle-impact coulometry in identifying and quantifying nanoparticles tagged (or labelled) with electroactive molecules is demonstrated via the detection 1,4-nitrothiophenol-tagged silver aqueous dispersion at potentials more negative than -0.17 V (vs. Ag/AgCl, reduction potential nitrothiophenol) monitoring particle-electrode collisions.
The electro-oxidation of silver and nickel nanoparticles in aqueous solution was studied via their collisions with a carbon electrode. average charge passed per impact varies electrode potential analysed to determine that AgNPs display an electrochemically fast ("reversible") one-electron oxidation, whilst the NiNPs exhibit slow ("irreversible") 2-electron kinetics. Kinetic parameters are reported.
We for the first time propose a new concept where greater enhancement in dual potential electrochemiluminescence (ECL) of single graphene quantum dot (GQD) emitter can be achieved through coupling between chemical and electrochemical reactions two different coreactants K2S2O8 Na2SO3.