Electrochemical deposition of high density gold nanoparticles on indium/tin oxide electrode for fabrication of superoxide anion biosensor

Author

Yu, Xiuping ; Wang, Liping ; Di, Junwei

Author_Institution

Dept. of Chem., Soochow Univ., Suzhou, China

fYear

2010

Firstpage

848

Lastpage

849

Abstract

High density gold nanoparticles (GNPs) on indium tin oxide (ITO) film coated glass have been prepared by electrochemical deposition from KAu(CN)₂ solution. In this study, suitable applied potential ranges and deposition cycles are chosen to achieve high density GNPs on ITO surface. The potential utility of the high density GNP/ITO substrate are investigated. The superoxide dismutase (SOD) was immobilized on this substrate to fabricate a superoxide anion biosensor. The biosensor exhibits a rapid and high response to superoxide anion.

Keywords

biosensors; electrochemical electrodes; electrochemical sensors; electrodeposition; enzymes; gold; molecular biophysics; nanobiotechnology; nanoparticles; Au-ITO; ITO; electrochemical deposition; electrode; high density gold nanoparticles; immobilization; indium tin oxide film coated glass; superoxide anion biosensor; superoxide dismutase; Biosensors; Chemistry; Economic indicators; Electrodes; Fabrication; Gold; Indium tin oxide; Nanoparticles; Substrates; Surface morphology;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoelectronics Conference (INEC), 2010 3rd International

Conference_Location

Hong Kong

Print_ISBN

978-1-4244-3543-2

Electronic_ISBN

978-1-4244-3544-9

Type

conf

DOI

10.1109/INEC.2010.5425176

Filename

5425176