Biofuel Cells Based on Oxidoreductases and Electroactive Nanomaterials: Development and Characterization

Biosensors, Journal Year: 2025, Volume and Issue: 15(4), P. 249 - 249

Published: April 14, 2025

Amperometric biosensors (ABSs) and enzymatic biofuel cells (BFCs) share several fundamental principles in their functionality, despite serving different primary purposes. Both devices rely on biorecognition, redox reactions, electron transfer (ET), advanced electrode materials, including innovative nanomaterials (NMs). ABSs BFCs, utilizing microbial oxidoreductases combination with electroactive NMs, are both efficient cost-effective. In the current study, laboratory prototypes of BFCs have been developed bioanodes based yeast flavocytochrome b2 (Fcb2) alcohol oxidase (AO), a cathode fungal laccase. For first time, featuring anodes Fcb2 co-immobilized NMs glassy carbon (GCE), cathode-utilizing laccase combined gold–cerium–platinum nanoparticles (nAuCePt). The most effective lactate BFC, which contains gold–hexacyanoferrate (AuHCF), exhibited specific power density 1.8 µW/cm2. A series were an AO-containing anode laccase/nAuCePt/GCE cathode. optimal configuration featured bioanode architecture AO/nCoPtCu/GCE, achieving 3.2 constructed tested using lactate-containing food product samples as fuels.

Language: Английский

Functional metal–organic frameworks derived-nanozyme integrated sodium alginate hydrogel microspheres for visual total antioxidant capacity detection in foods

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162756 - 162756

Published: April 1, 2025

Language: Английский