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Detection of microRNA by electrocatalytically amplified nanoparticle collisions
(2017-06-16)
We report a new and general approach that will be useful for adapting the method of electrocatalytic amplification (ECA) to biosensing applications. In ECA, individual collisions of catalytic nanoparticles with a noncatalytic ...
Electrochemistry and electrogenerated chemiluminescence of unique organic chromophores and organic nanoparticles
(2011-05)
Electrogenerated chemiluminescence (ECL) studies were performed on several interesting compounds. A series of BODIPY derivatives was examined to understand the structural effects on the electrochemical, spectroscopic, and ...
Detection of unstable intermediates and mechanistic studies in multisteps, two-electron transfer reactions by cyclic voltammetry and scanning electrochemical microscopy
(2014-05)
Unstable Sn(III) intermediates generated in the Sn(IV)/Sn(II) redox reaction in 2 M HBr + 4 M NaBr media were detected by scanning electrochemical microscopy (SECM) and cyclic voltammetry (CV). In CV, the underpotential ...
Studies in the photoelectrochemistry of bismuth vanadate using scanning electrochemical microscopy
(2012-12)
Photoelectrochemical studies were performed on bismuth vanadate (BiVO₄) to understand chemical and physical properties of the photocatalysts, and to improve the photoactivity for water oxidation. Scanning electrochemical ...
Microfluidics for bioanalytical research : transitioning into point-of-care diagnostics
(2014-12)
In this dissertation, three different microfluidic devices with bioanalytical applications are presented. From chapter to chapter, the bioanalytical focus will gradually become the development of a point-of-care sensor ...
The bioelectrochemistry of enzymes and their cofactors at carbon nanotube and nitrogen-doped carbon nanotube electrodes
(2014-05)
This dissertation explores the electrochemical behavior of enzymes and their cofactors at carbon nanotube (CNT) and nitrogen-doped carbon nanotube (N-CNT) electrodes. Two common types of oxidoreductases are considered: ...
Microelectrochemical devices and methods for investigation of complex surface modifications and electroactive thin-films
(2017-09-14)
Here we report on the development of microelectrochemical generation-collection flow devices and techniques for studies of complex electrode surface modifications and electroactive thin films. First we outline a new technique ...
Detecting single-particle insulating collisions in microfluidics as a function of flow rate
(2012-12)
This work presents the first electrochemical observation of single polystyrene microbead collisions with an electrode within a microchannel. We have observed that detecting single microbead collisions is facile with this ...
Bipolar electrochemistry for enrichment, separations, and membraneless electrochemically mediated desalination
(2015-08)
Developments in bipolar electrochemistry for the simultaneous separation and enrichment of charged species and membraneless electrochemically mediated desalination (EMD) are presented. Each of these techniques requires an ...
Paper-based electrochemical platforms for separation, enrichment, and detection
(2017-05)
Paper based analytical devices (PADs) have great potential in the application of point-of-care diagnosis. This dissertation focuses on the design and application of PADs, especially ones that integrate with electrochemical ...