Assembling a Low‐volume Biofuel Cell on a Screen‐printed Electrode for Glucose Sensing. Issue 10 (13th April 2022)

• Record Type: Journal Article
• Authors: Becker, Jana M.; Lielpetere, Anna; Szczesny, Julian; Ruff, Adrian; Conzuelo, Felipe; Schuhmann, Wolfgang
• Is Part Of: Electroanalysis. Volume 34:Issue 10(2022)
• Page Start: 1629
• Page End: 1637
• Publication Date: 2022-04-13
• Subjects: biofuel cell -- enzyme electrodes -- screen-printed electrode -- self-powered sensor -- glucose; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.202200084
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: An enzymatic biofuel cell is integrated on a screen‐printed electrode as a basis for a self‐powered biosensor. A glucose/O2 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 O2 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. Abstract :