Chemical sensors
Electrochemical methods provide simple, sensitive and selective detection of various analytes. In our laboratory, we develop electrochemical sensors based on micro- and nano-scale electrodes for a wide range of applications from food analysis, medical diagnosis to environmental monitoring.
Nanomaterial Characterization
Various nanoparticles (≤100 nm diameter) have found significant uses in clothing, sunscreens, food products, food containers, medical treatment and biological imaging owing to their unique size-dependent properties. In order to control and optimize the properties of nanoparticles, their sizes, surface area and concentrations have to be characterized. It is also important that the surface reactivity, catalytic activity and toxicity of the nanoparticles are understood prior to use, especially in medical applications. In our group, we develop electrochemical methods for nanoparticles detection, characterization and investigation of their chemical reactivity via anodic stripping voltammetry and nano-impacts.
Fundamental Electrochemistry
Electrochemical responses are governed by electron transfer kinetics and solution-phase mass transport. The understanding of these processes facilitate the development of energy storage devices and chemical sensors. In our laboratory, we investigate the mass transport (diffusion, migration and convection) of redox species to micro- and nano-scale electrodes by both simulation and experiment.