Disposable biosensor based on Au nanoparticles-modified CdS nanorod arrays for detection cytochrome c

J Nanosci Nanotechnol. 2011 Dec;11(12):10320-3. doi: 10.1166/jnn.2011.5012.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biosensing Techniques*
  • Cadmium Compounds / chemistry*
  • Cytochromes c / analysis*
  • Gold / chemistry*
  • Metal Nanoparticles*
  • Microscopy, Electron, Scanning
  • Nanoparticles*
  • Nanotubes*
  • Selenium Compounds / chemistry*

Substances

  • Cadmium Compounds
  • Selenium Compounds
  • Gold
  • Cytochromes c
  • cadmium selenide