Kinetics of Mediated Bioelectrocatalytic Oxidation of Glucose by Protein Extracts of Escherichia coli
| Autor: | V. D. Myazin, M. V. Dmitrieva, S. V. Shmalii, E. V. Zolotukhina, A. Yu. Bazhenov, E. V. Gerasimova, I. N. Shishov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Chemistry
Kinetics Dehydrogenase 02 engineering and technology Activation energy 010402 general chemistry 021001 nanoscience & nanotechnology medicine.disease_cause Electrochemistry 01 natural sciences 0104 chemical sciences Catalysis Reaction rate constant Mediator medicine 0210 nano-technology Escherichia coli Nuclear chemistry |
| Zdroj: | Russian Journal of Electrochemistry. 56:938-945 |
| ISSN: | 1608-3342 1023-1935 |
| DOI: | 10.1134/s1023193520110038 |
| Popis: | The kinetics of bioelectrocatalytic oxidation of glucose by protein extracts—supersonic-destruction products of Escherichia coli BB cells—is studied in the presence of [Fe(CN)6]3– as the mediator system. The effect of the concentration of mediator, glucose, and protein extract is studied by electrochemical methods. The results are used in determination of effective parameters: the rate constant of glucose biooxidation, the constant of substrate-induced inhibition, and the activation energy. It is shown that the activation energy of this reaction falls into the interval of activation energies of dehydrogenase reactions. The voltammetric characteristics of a model asymmetrical biofuel cell which employs the protein extract as the anodic catalyst are determined. The maximum specific power of such model biofuel cell is found to be 400 µW/cm2 (4 W/m2). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink