Electrochemical oxidation of hydrogen peroxide at nanoporous platinum electrodes and the application to glutamate microsensor |
| |
Authors: | Ji-Hyung Han Sejin Park Taek Dong Chung |
| |
Affiliation: | a Center for NanoBio Applied Technology and Department of Chemistry, Sungshin Women's University, 249-1 Dongseon-dong, Seongbuk-gu, Seoul 136-742, Republic of Korea b Nomadien Co. Ltd., 249-1 Dongseon-dong, Seongbuk-gu, Seoul 136-742, Republic of Korea |
| |
Abstract: | The electrochemical behavior of hydrogen peroxide (H2O2) at nanoporous platinum (Pt) thin film was investigated and the reaction of the enzymes immobilized on the electrode was examined. The nanoporous Pt underlying the enzyme layer was electrochemically deposited on Pt-Ir alloy microelectrodes in the solution consisting of hexachloroplatinic acid and a non-ionic surfactant, octaethylene glycol monohexadecyl ether (C16EO8). Glutamate oxidases were entrapped during electro-polymerization of 1,3-phenylenediamine on the nanoporous Pt microelectrodes to form a glutamate oxidase layer. The glutamate microsensors as made were compared with flat Pt-based one in terms of the performance and characteristics. |
| |
Keywords: | Nanoporous Platinum Hydrogen peroxide Glutamate Microelectrode Biosensor |
本文献已被 ScienceDirect 等数据库收录! |
|