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A semiconductive polymer film sensor for glucose.

M K Malmros1, J Gulbinski, W B Gibbs

  • 1Ohmicron Corporation, Pennington, New Jersey 08534.

Biosensors
|January 1, 1987
PubMed
Summary

Organic polymers like polyacetylene can be precisely controlled for conductivity using dopants. This research details a novel polyacetylene-based biosensor for glucose detection, enhancing sensitivity through specific mediating agents.

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Immobilization of glucose oxidase by electropolymerization of monomers. Influence of polymerization conditions.

Annals of the New York Academy of Sciencesยท1990
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Area of Science:

  • Materials Science
  • Electrochemistry
  • Biotechnology

Background:

  • Organic polymers, such as polyacetylene, exhibit tunable electrical conductivity.
  • Doping polyacetylene with agents like iodine, bromine, and perchloric acid varies conductivity over twelve orders of magnitude.
  • Semiconductive polyacetylene films show sensitivity to hydrogen peroxide, enabling sensor applications.

Purpose of the Study:

  • To introduce polyacetylene as a novel electroactive material for biosensor development.
  • To create a rapid, quantitative biosensor for glucose detection.
  • To enhance the sensitivity of the glucose biosensor.

Main Methods:

  • Utilizing flavoprotein glucose oxidase for glucose sensing.
  • Employing doped polyacetylene films as the core sensor material.
  • Mediating the doping reaction with lactoperoxidase and potassium iodide to improve sensitivity.

Main Results:

  • Demonstrated the effectiveness of polyacetylene as a base material for biosensors.
  • Developed a quantitative sensor for glucose with high sensitivity.
  • Achieved a significant increase in sensor sensitivity through the use of mediating agents.

Conclusions:

  • Polyacetylene is a versatile electroactive material suitable for advanced biosensor design.
  • The developed glucose biosensor offers rapid and quantitative detection capabilities.
  • Mediating doping reactions can substantially enhance biosensor performance and sensitivity.

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