Electron Transfer between Glucose Oxidase and Electrodes via Redox Mediators Bound with Flexible Chains to the Enzyme Surface

Abstract

Electrical communication between redox centers of glucose oxidase and vitreous carbon electrodes is established through binding to oligosaccharides, at the periphery of the enzyme, ferrocene functions pendant on flexible chains. Communication is effective when the chains are long (>10 bonds), but when the chains are short (<5 bonds). When attached to long flexible chains the peripherally bound relays penetrate the enzyme to a sufficient depth to reduce the electron transfer distances between a redox center of the enzyme and the relay and between the relay and electrode, thereby increasing the rate of electron transfer.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 11, 1991
Accession Number
ADA231115

Entities

People

  • Adam Heller
  • Hanns-ludwig Schmidt
  • Timothy J. Ohara
  • Wolfgang Schuhmann

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aldehydes
  • Biomedical And Dental Materials
  • Chemical Engineering
  • Classification
  • Column Chromatography
  • Electrodes
  • Electron Transfer
  • Electrons
  • Elements
  • Engineering
  • Ferrocenes
  • Military Research
  • Oxidation
  • Peroxides
  • Polymers
  • Security
  • Universities

Readers

  • Electrical Engineering
  • Electrochemical Surface Science
  • Molecular and Cellular Biochemistry

Technology Areas

  • Microelectronics