MESSAI.iO

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MES research in microbial, electrochemical. Bioelectrocatalysis provides the intrinsic catalytic-functions of redox ...

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System
MBES
Substrate
pure compound

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Abstract

Bioelectrocatalysis provides the intrinsic catalytic-functions of redox enzymes to non-specific electrode reactions and is the most important and basic concept for biosensors. This review starts by describing fundamental characteristics of bioelectrocatalytic reactions in mediated and direct electron transfer types from a theoretical viewpoint and summarizes amperometric biosensors based on multi-enzymatic cascades and for multi-analyte detection. The review also introduces prospective aspects of two new concepts of biosensors: mass-transfer-controlled (pseudo)steady-state amperometry at microelectrodes with enhanced enzymatic activity without calibration curves and potentiometric coulometry at enzyme/mediator-immobilized biosensors for absolute determination.

Keywords

BiosensorAmperometryCoulometryAnalyteNanotechnologyElectron transfer

Identifiers

DOI
10.20944/preprints202007.0459.v1
Journal
Preprints.org
Year
2020