Skip to main content

Sol–Gel Derived Nanostructured Tin Oxide Film for Glucose Sensor

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

Sol–gel derived nanostructured tin oxide (Nano-SnO2) film (annealed at 500 °C for about 2 h) has been dip-coated onto indium-tin-oxide (ITO) coated glass for immobilization of glucose oxidase (GOx). This Nano-SnO2/ITO film has been characterized using X-Ray diffraction (XRD), scanning electron microscopy (SEM), UV-Visible, Fourier transform infrared spectroscopy (FTIR) and cyclic voltammetry (CV) techniques. XRD diffraction measurements reveal particle size of the Nano-SnO2 film as 3–4 nm. It has been found that GOx/Nano-SnO2/ITO bioelectrode exhibits response time as 5 s, detection limit as 0.169 mg/dL, linearity as 10–300 mg/dL, correlation coefficient as 0.899, sensitivity as 2.687 A mg/dLcm2 and it retains about 80% of its initial response current after about 7 weeks. The value of the Michaelis-Menten constant (Km) has been estimated as 2.8 mg/dL (0.16 mM).

Keywords: BIOSENSOR; GLUCOSE OXIDASE; HYDROTHERMAL SYNTHESIS; NANO-STRUCTURED TIN OXIDE

Document Type: Research Article

DOI: https://doi.org/10.1166/sl.2009.1011

Publication date: 2009-02-01

More about this publication?
  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
  • 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