Cited by 95Enzyme Catalysis and ImmobilizationEnzyme Production and CharacterizationHydrogels: synthesis, properties, applications

Time‐dependent inactivation of immobilized glucose oxidase and catalase

Tse, Pius H. S., Gough, David A.·1987·Biotechnology and Bioengineering

Abstract

Homogeneous membranes containing immobilized glucose oxidase and catalase were stored in buffered solutions at 37°C to determine the mechanisms and rates of catalyst inactivation. The experiments were designed so that inactivation occurred homogeneously throughout the membrane, thereby simplifying the analysis. The mechanism of inactivation is consistent with the reaction of hydrogen peroxide and certain catalytic intermediates of both enzymes. Based on this information, numerical simulations were developed that incorporate spatially heterogeneous catalytic and inactivation processes.

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Crossref · 10.1002/bit.260290607

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32 of 32 references verified0 citation errors · 0 not checkable

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  • Deactivation by endogenously produced hydrogen peroxide from oxidase reactions also contributes to loss of enzyme activity.

    “However, deactivation by endogenously produced hydrogen peroxide from oxidase reactions also contributes to the loss of activity.71”
  • Enzyme activity in glucose sensors begins to decrease immediately due to polymer entrapment and exposure to reactive oxidative species from sensor operation and the foreign body response.

    “Enzyme activity begins to decrease immediately both due to polymer entrapment and exposure to reactive oxidative species from sensor operation and the FBR (exposure to hydrogen peroxide and other reactive radicals).71–72”

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Authors
Tse, P. H. S., & Gough, D. A.
Affiliations
University of California San Diego (US)
Venue
Biotechnology and Bioengineering
Publisher
Wiley
Published
1987-04-20
Volume
29
Issue
6
Pages
705-713
ISSN
  • 0006-3592 (ISSN-L)
  • 1097-0290
OpenAlex
W2099051493
Cited by
95
References
32
Citations by year
2026: 1 · 2023: 4 · 2022: 1 · 2020: 2 · 2019: 3 · 2018: 3 · 2017: 4 · 2016: 4 · 2015: 2 · 2014: 2 · 2013: 5 · 2012: 4
FWCI
1.07
Type
journal article
Language
en
Open access
closed
Locations
  • Biotechnology and Bioengineering (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Enzyme Catalysis and Immobilization
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Enzyme Production and Characterization
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
Keywords
enzyme immobilization, glucose oxidase, catalase, enzyme inactivation, time-dependent inactivation, homogeneous membranes, hydrogen peroxide, catalytic intermediates, inactivation mechanism, numerical simulation

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