Au/TiO2 NANOTUBES FOR SELECTIVE DETECTION OF DOPAMINE-Reference-Cited by-同舟云学术

Au/TiO2 NANOTUBES FOR SELECTIVE DETECTION OF DOPAMINE

Published:2011-08 Issue:04n05 Volume:10 Page:1185-1189
ISSN:0219-581X
Container-title:International Journal of Nanoscience
language:en
Short-container-title:Int. J. Nanosci.

Author:

ARAVIND S. S. JYOTHIRMAYEE¹,SRINIVASAN SATHISH KUMAR¹,RAMAPRABHU SUNDARA¹

Affiliation:

1. Alternative Energy and Nanotechnology Laboratory, Nano Functional Materials Technology Centre, Department of Physics, Indian Institute of Technology Madras, Chennai 600036, India

Abstract

A novel biosensor for dopamine (DA) detection was fabricated using TiO2 nanotube and Au/TiO2 nanotube films on glassy carbon electrode (GCE). The Au/TiO2 nanotubes on electrode showed better electrocatalytic activity towards the detection of DA which was attributed to its excellent electron conductive network. The biosensor elicited sensitivity of 22 nA/μM with a linearity of detection localized in the concentration range from 5–120 μM with correlation coefficient of 0.99. The detection limit of DA for the Au/TiO2 nanotube biosensor was found to be ~3 μM (S/N = 3). In addition, the fabricated sensor showed good anti-interference capability towards biological compounds such as ascorbic acid and uric acid. In conclusion, Au/TiO2 nanotube biosensor exhibits excellent catalytic activity, selectivity and simplicity for the detection of dopamine.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Computer Science Applications,Condensed Matter Physics,General Materials Science,Bioengineering,Biotechnology

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0219581X11008460

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