Cited by 71Electrochemical sensors and biosensorsAnalytical Chemistry and SensorsEnzyme Catalysis and Immobilization

Nitric Oxide-Releasing Sol−Gel Particle/Polyurethane Glucose Biosensors

Shin, Jae Ho, Marxer, Stephanie M., Schoenfisch, Mark H.·2004·Analytical Chemistry

Abstract

A hybrid sol-gel/polyurethane glucose biosensor that releases nitric oxide is developed and characterized. The biosensor consists of a platinum electrode coated with four polymeric membranes including the following: (1) sol-gel with immobilized glucose oxidase (GOx); (2) polyurethane to protect the enzyme; (3) NO donor-modified sol-gel particle-doped polyurethane; and (4) polyurethane. This configuration was developed due to the drastic reduction in sensitivity observed for NO donor-modified sol-gel film-based glucose sensors. For the hybrid sol-gel/polyurethane biosensor, sol-gel particles are first modified with the NO donor and then incorporated into a polyurethane layer that is coated onto the preimmobilized GOx electrode. In this manner, the GOx layer is not exposed to the harsh conditions necessary to impart NO release ability to the biosensor, and only a minimal decrease in sensitivity due to the NO release is observed. The glucose response of the NO-releasing glucose biosensor and its NO generation profiles are reported. In addition, the stability of the sol-gel particles in the supporting polyurethane membrane is discussed.

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Crossref · 10.1021/ac049776z

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Authors
Shin, J. H., Marxer, S. M., & Schoenfisch, M. H.
Affiliations
University of North Carolina at Chapel Hill (US)
Venue
Analytical Chemistry
Published
2004-06-15
Volume
76
Issue
15
Pages
4543-4549
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W2051611306
Cited by
71
References
42
Citations by year
2025: 1 · 2023: 1 · 2021: 2 · 2020: 4 · 2019: 5 · 2018: 2 · 2017: 6 · 2016: 4 · 2015: 2 · 2014: 3 · 2013: 5 · 2012: 4
FWCI
5.20
Type
journal article
Language
en
Open access
closed
Locations
  • Analytical Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Seoul
  • Kwangwoon University
  • National Institutes of Health
  • National Institute of Biomedical Imaging and Bioengineering (EB 000708, R01EB000708)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrochemical sensors and biosensors
  • Physical Sciences › Chemical Engineering › Bioengineering › Analytical Chemistry and Sensors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Enzyme Catalysis and Immobilization
Keywords
glucose biosensor, nitric oxide release, polyurethane membranes, glucose oxidase immobilization, platinum electrode, enzyme protection, sensor stability
MeSH terms
Enzymes, Immobilized, Glucose, Glucose Oxidase, Membranes, Artificial, Polyurethanes, Sensitivity and Specificity, Biosensing Techniques, Nitric Oxide Donors, Phase Transition

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