A5012861155- Advanced biosensing and bioanalysis techniques
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Advanced Nanomaterials in Catalysis
- Biosensors and Analytical Detection
- Analytical Chemistry and Sensors
- Advanced battery technologies research
- Conducting polymers and applications
- Nanocluster Synthesis and Applications
- Supercapacitor Materials and Fabrication
- Carbon and Quantum Dots Applications
- Catalytic Processes in Materials Science
- Microfluidic and Capillary Electrophoresis Applications
- Advanced Photocatalysis Techniques
- Graphene and Nanomaterials Applications
- Advancements in Battery Materials
- Advanced Biosensing Techniques and Applications
- Analytical chemistry methods development
- Advanced Battery Materials and Technologies
- Gold and Silver Nanoparticles Synthesis and Applications
- Pesticide Exposure and Toxicity
- Analytical Chemistry and Chromatography
- Phase Equilibria and Thermodynamics
Washington State University
2016-2025
National University of Singapore
2008-2021
Washington State University Spokane
2020
Central China Normal University
2009-2018
Pacific Northwest National Laboratory
2008-2017
Battelle
2005-2017
Environmental Molecular Sciences Laboratory
1998-2017
Southwest Petroleum University
2017
University of Jinan
2016
Richland College
2000-2015
Chemical doping with foreign atoms is an effective method to intrinsically modify the properties of host materials. Among them, nitrogen plays a critical role in regulating electronic carbon Recently, graphene, as true two-dimensional material, has shown fascinating applications bioelectronics and biosensors. In this paper, we report facile strategy prepare N-doped graphene by using plasma treatment synthesized via chemical method. Meanwhile, possible schematic diagram been proposed detail...
The ability to solubilize single-wall and multiwall carbon nanotubes (CNT) in the presence of perfluorinated polymer Nafion is described. Such use as a solubilizing agent for CNT overcomes major obstacle creating CNT-based biosensing devices. Their association with does not impair electrocatalytic properties CNT. resulting CNT/Nafion modified glassy-carbon electrodes exhibit strong stable response toward hydrogen peroxide. marked acceleration peroxide redox process very attractive operation...
Nitrogen-doped graphene (N-graphene) is obtained by exposing to nitrogen plasma. N-graphene exhibits much higher electrocatalytic activity toward oxygen reduction and H2O2 than graphene, durability selectivity the widely-used expensive Pt for reduction. The excellent electrochemical performance of attributed functional groups specific properties graphene. This indicates that promising applications in energy devices (fuel cells, metal–air batteries) biosensors.
A series of titanium dioxide and graphene sheets (GSs) composites were synthesized with a sol–gel method using tetrabutyl titanate graphite oxide (GO) as the starting materials. The obtained TiO2/GSs photocatalysts are characterized by X-ray diffraction, N2 adsorption analysis, Raman spectroscopy, transmission electron microscopy, photoelectron spectroscopy ultraviolet-visible (UV-vis) diffuse reflectance spectroscopy. photocatalytic activity as-prepared samples was evaluated hydrogen...
Graphene has shown fascinating applications in bionanotechnology, including DNA sensing, protein assays, and drug delivery. However, exploration of graphene with intracellular monitoring situ molecular probing is still at an early stage. In this regard, we have designed aptamer-carboxyfluorescein (FAM)/graphene oxide nanosheet (GO-nS) nanocomplex to investigate its ability for living cells. Results demonstrate that uptake aptamer-FAM/GO-nS cellular target were realized successfully. The...
This paper describes the development of glucose biosensors based on carbon nanotube (CNT) nanoelectrode ensembles (NEEs) for selective detection glucose. Glucose oxidase was covalently immobilized CNT NEEs via carbodiimide chemistry by forming amide linkages between their amine residues and carboxylic acid groups tips. The catalytic reduction hydrogen peroxide liberated from enzymatic reaction upon oxygen leads to biosensor effectively performs a electrochemical analysis in presence common...
Graphene oxide is electrochemically reduced which called graphene (ER-G). ER-G characterized with scanning electron microscopy, transmission X-ray photoelectron spectroscopy, and diffraction. The oxygen content significantly decreased the sp2 carbon restored after electrochemical reduction. exhibits much higher capacitance cycling durability than nanotubes (CNTs) chemically graphene; specific measured cyclic voltammetry (20 mV s−1) ∼165, ∼86, ∼100 F g−1 for ER-G, CNTs, graphene,...
Catalyst support materials exhibit great influence on the cost, performance, and durability of polymer electrolyte membrane (PEM) fuel cells. This feature article summarizes several important kinds novel for PEM cells (including direct methanol cells): nanostructured carbon (carbon nanotubes, nanofibers, mesoporous carbon), conductive doped diamonds nanodiamonds, oxides (tin oxide/indium tin oxide, titanium tungsten oxide), carbides (tungsten carbides). The advantages disadvantages, acting...
Graphene, a single layer 2-dimensional structure nanomaterial with unique physicochemical properties (e.g. high surface area, excellent electrical conductivity, strong mechanical strength, unparalleled thermal remarkable biocompatibility and ease of functionalization), has received increasing attention in physical, chemical biomedical fields. This article selectively reviews current advances graphene based materials for applications. In particular, biosensors small biomolecules (glucose,...
Abstract The great interest in fuel cells inspires a substantial amount of research on nonprecious metal catalysts as alternatives to Pt‐based oxygen reduction reaction (ORR) electrocatalysts. In this work, bimodal template‐based synthesis strategies are proposed for the scalable preparation hierarchically porous M–N–C (M = Fe or Co) single‐atom electrocatalysts featured with active and robust MN 2 moieties. Multiscale tuning regarding increasing number sites boosting intrinsic activity each...
The ability to synthesize and assemble monodispersed core−shell nanoparticles is important for exploring the unique properties of nanoscale core, shell, or their combinations in technological applications. This paper describes findings an investigation synthesis assembly core (Fe3O4)−shell (Au) with high monodispersity. Fe3O4 selected sizes were used as seeding materials reduction gold precursors produce gold-coated (Fe3O4@Au). Experimental data from both physical chemical determinations...