Abstract

A novel disposable biosensor is developed based on gold nanoparticles modified CdS nanorod arrays. The ordered CdS nanorod arrays firstly have been synthesized by a simple hydrothermal method. Then, the CdS nanorod arrays are modified by gold nanoparticles, which are directly fabricated into an electrode for detection of cytochrome c (Cyc) in solution without any pretreatment. The modified CdS nanorod arrays biosensor with the immense surface area and high electrical conductivity shows a good sensitivity and linear range. This method may be used to construct other electrochemical biosensors using aligned nanorod/nanowire films.

Authors

Yan S, Xu X, Sheng Y, Sun H, Wu J, Tang L

Institution

School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210046, PR China.

Source

Journal of nanoscience and nanotechnology 11:12 2011 Dec pg 10320-3

MeSH

Biosensing Techniques
Cadmium Compounds
Cytochromes c
Gold
Metal Nanoparticles
Microscopy, Electron, Scanning
Nanoparticles
Nanotubes
Selenium Compounds

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22408904