Skip to main content

Electrochemical Deposition of High Density Gold Nanoparticles on Indium/Tin Oxide Electrode for Fabrication of Biosensors

Buy Article:

$105.00 plus tax (Refund Policy)

High density gold nanoparticles (GNPs) on indium tin oxide (ITO) film coated glass have been prepared by one-step electrochemical deposition from KAu(CN)2 in phosphate buffer (pH 8.0) solution. The resulting electrode surface was characterized by scanning electron microscopy (SEM), UV-vis spectroscopy, X-ray diffraction (XRD) and electrochemical method. Experimental results revealed that the number density of the nanoparticles was increased by the negative shift of the applied potential, while the coverage of the deposited GNPs on ITO substrate surface was also increased by means of the increasing deposition cycles. The presence of GNPs with high coverage improved the electrochemical response of Fe(CN)6 3−/4−. This high coverage GNP/ITO substrate was applied to immobilization superoxide dismutase (SOD) for fabrication of electrochemical biosensors. The direct electron transfer between enzyme and electrode was realized, and the electrochemical performance of the SOD electrode was improved with the high coverage of GNPs. The biosensor exhibited a rapid and high response to superoxide anion.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: BIOSENSOR; DISMUTASE; ELECTROCHEMICAL DEPOSITION; GOLD NANOPARTICLES; INDIUM TIN OXIDE; SUPEROXIDE

Document Type: Research Article

Publication date: 2011-12-01

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more