Date of Award
Chemistry and Biochemistry
Pure sciences, Chiral molecules, Conductive polymers, Glucose sensor, Nanoparticles
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This research focuses on the development of simple and cost effective approaches for making electrochemical sensors with a great sensitivity and selectivity. As an economic and abundant starting material, organic substrates were investigated to making conductive polymers that showed promising electrocatalytic activities. Firstly, a poly(4-bromoaniline) film was successfully synthesized on a gold electrode and the porous film which was made up of nano-ribbons on the Au electrode was used for the recognition of amino acids enantiomers. Secondly, different halogen ions were introduced to manifest the properties of the synthesized polymers. The results show that bromide ions have significantly inhibited the transition of leucoemeraldine to emeraldine, letting the PANI polymer to be in Pernigraniline form, which exhibited much improved performance in pH sensing. In addition, a simple way to controllably deposit copper nanoparticles inside poly-2,5-dimethoxyaniline matrix, which can be employed as a glucose sensor, was developed.
Hu, Xuefeng, "The Development of Polymer-coated Electrodes for Chemical Detection" (2014). Electronic Theses and Dissertations. 5129.