Assembling a Low‐volume Biofuel Cell on a Screen‐printed Electrode for Glucose Sensing | Zendy

Becker Jana M. | Zendy; Lielpetere Anna | Zendy; Szczesny Julian | Zendy; Ruff Adrian | Zendy; Conzuelo Felipe | Zendy; Schuhmann Wolfgang | Zendy

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Assembling a Low‐volume Biofuel Cell on a Screen‐printed Electrode for Glucose Sensing

Author(s) -

Becker Jana M.,

Lielpetere Anna,

Szczesny Julian,

Ruff Adrian,

Conzuelo Felipe,

Schuhmann Wolfgang

Publication year - 2022

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.202200084

Subject(s) - bilirubin oxidase , glucose oxidase , electrode , gas diffusion electrode , biosensor , chemistry , redox , pyrroloquinoline quinone , materials science , nanotechnology , electrochemistry , inorganic chemistry , biochemistry , enzyme , cofactor

An enzymatic biofuel cell is integrated on a screen‐printed electrode as a basis for a self‐powered biosensor. A glucose/O 2 biofuel cell consisting of a pyrroloquinoline quinone‐dependent glucose dehydrogenase embedded within an Os‐complex modified redox polymer bioanode to oxidize glucose and a non‐limiting bilirubin oxidase‐based gas diffusion biocathode in the direct‐electron transfer regime for the reduction of O 2 showed a glucose‐dependent current and power output. For full integration on a single screen‐printed electrode, a miniaturized agar salt bridge was introduced between the two bioelectrodes to ensure operation of the assembly in a two‐compartment configuration with each electrode operating at optimal conditions.

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