A5002799593- Advanced biosensing and bioanalysis techniques
- Biosensors and Analytical Detection
- Electrochemical sensors and biosensors
- Analytical Chemistry and Sensors
- Fuel Cells and Related Materials
- Bone Tissue Engineering Materials
- Magnesium Alloys: Properties and Applications
- Electrochemical Analysis and Applications
- Electrocatalysts for Energy Conversion
- Advanced ceramic materials synthesis
- Conducting polymers and applications
- Orthopaedic implants and arthroplasty
- Supercapacitor Materials and Fabrication
- Gas Sensing Nanomaterials and Sensors
- MXene and MAX Phase Materials
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Advanced materials and composites
- SARS-CoV-2 detection and testing
- Advanced Chemical Sensor Technologies
- Advanced Battery Materials and Technologies
- Advanced Biosensing Techniques and Applications
- Corrosion Behavior and Inhibition
- Parkinson's Disease Mechanisms and Treatments
- Titanium Alloys Microstructure and Properties
Purdue University West Lafayette
2016-2025
State Street (United States)
2018-2021
Sandia National Laboratories
2014-2015
Swiss Federal Laboratories for Materials Science and Technology
2014-2015
Hasselt University
2015
Fox Corporation (United States)
2015
Tianjin Hi-Tech Superconducting Electronic Technology (China)
2015
Xerox (France)
2015
Bridge University
2015
University of Cambridge
2015
Abstract Two-dimensional transition metal carbides/nitrides, known as MXenes, have been recently receiving attention for gas sensing. However, studies on hybridization of MXenes and 2D dichalcogenides gas-sensing materials are relatively rare at this time. Herein, Ti 3 C 2 T x WSe selected model implemented toward detection various volatile organic compounds. The /WSe hybrid sensor exhibits low noise level, ultrafast response/recovery times, good flexibility sensitivity the to ethanol is...
Two-dimensional (2D) transition-metal carbides (Ti3C2Tx MXene) have received a great deal of attention for potential use in gas sensing showing the highest sensitivity among 2D materials and good selectivity. However, one long-standing challenges MXenes is their poor stability against hydration oxidation humid environment, limiting long-term storage applications. Integration an effective protection layer with shows promise overcoming this major drawback. Herein, we demonstrate surface...
Graphene/polyaniline (PANI) nanocomposites were prepared by reducing graphene oxide with hydrazine in the presence of different amounts polyaniline nanoparticles. In situ cryo-transmission electron microscope (TEM) images a (GO)/PANI solution revealed that PANI nanoparticles anchored on surface GO sheets. During reduction, as-adsorbed sandwiched between layers These acted as spacers to create gaps neighboring sheets, resulting higher area compared pure graphene. Graphene/PANI exhibited high...
The long-standing issues of low intrinsic electronic conductivity, slow lithium-ion diffusion and irreversible phase transitions on deep discharge prevent the high specific capacity/energy (443 mAh g−1 1,550 Wh kg−1) vanadium pentoxide from being used as cathode material in practical battery applications. Here we develop a method to incorporate graphene sheets into nanoribbons via sol–gel process. resulting graphene-modified nanostructured hybrids contain only 2 wt. % graphene, yet exhibits...
The enhancement of Pt nanoparticle anchoring strength and dispersion on carbon supports is highly desirable in polymer electrolyte membrane fuel cells (PEMFCs) as well other catalysis processes. Presented here a comprehensive study the interaction between catalyst nanoparticles terms electronic structure change its effects electrocatalytic performance supported catalysts. Graphene was chosen an ideal model support because unique 2-D allows direct investigation with metal at their interface....
The transient receptor potential (TRP) family of ion channels participate in many signaling pathways. TRPV1 functions as a molecular integrator noxious stimuli, including heat, low pH, and chemical ligands. Here, we report the 3D structure full-length rat channel expressed yeast Saccharomyces cerevisiae purified by immunoaffinity chromatography. We demonstrate that recombinant retains its structural functional integrity is suitable for analysis. 19-A determined using single-particle electron...
Biological systems such as proteins, viruses, and DNA have been most often reported to be used templates for the synthesis of functional nanomaterials, but properties widely available biopolymers, cellulose, much less exploited this purpose. Here, we report first time that cellulose nanocrystals (CNC) capacity assist in metallic nanoparticle chains. A cationic surfactant, cetyltrimethylammonium bromide (CTAB), was critical stabilization CNC surface modification. Silver, gold, copper,...
A simple method to fabricate graphene-encapsulated pyrolyzed polyaniline-grafted Si nanoparticles has been developed. Instead of using with a native oxide layer, HF-treated were employed in this work. The uniqueness is that, first, PANI layer over the was formed via surface-initiated polymerization aniline on surface aniline-functionalized nanoparticles; then, PANI-grafted wrapped by GO sheets π-π interaction and electrostatic attraction between PANI. Finally, pyrolyzed, tightly binds...
Two-dimensional titanium carbide MXenes, Ti3C2Tx, possess high surface area coupled with metallic conductivity and potential for functionalization. These properties make them especially attractive the highly sensitive room-temperature electrochemical detection of gas analytes. However, these extraordinary materials have not been thoroughly investigated volatile organic compounds (VOCs), many which hold relevance disease diagnostics environmental protection. Furthermore, insufficient...
Semiconducting two-dimensional (2D) transition-metal dichalcogenides (TMDCs) are considered promising sensing materials due to the high surface-to-volume ratio and active sites. However, reported strategies for 2D TMDCs toward of volatile organic compounds (VOCs) present with some drawbacks. These include operation temperatures, low gas response, complex fabrication, limiting development room-temperature sensors. In this study, MoS2 nanoflakes were prepared by liquid-phase exfoliation, their...
While identifying acute HIV infection is critical to providing prompt treatment HIV-positive individuals and preventing transmission, existing laboratory-based testing methods are too complex perform at the point of care. Specifically, molecular techniques can detect RNA within 8-10 days transmission but require laboratory infrastructure for cold-chain reagent storage extensive sample preparation performed by trained personnel. Here, we demonstrate our point-of-care microfluidic rapid...
In making a catalyst ink, the interactions between Nafion ionomer and support are key factors that directly affect both ionic conductivity electronic of layer in membrane electrode assembly. One major aims this investigation is to understand behavior support, Vulcan XC-72 (XC-72) aggregates, existence ink fill knowledge gap interaction these components. The dispersion depends not only on solvent but also carbon particles ink. aggregates liquid media was studied using ultrasmall-angle X-ray...
The few lateral flow assays (LFAs) established for detecting the endocrine disrupting chemical bisphenol A (BPA) have employed citrate-stabilized gold nanoparticles (GNPs), which inevitable limitations and instability issues. To address these limitations, a more stable sensitive biosensor is developed by designing strategies modifying surfaces of GNPs with polyethylene glycol then testing their effectiveness sensitivity toward BPA in an LFA. Without application any enhancement strategy, this...