BIOELECTROCHEMISTRY AND BIOELECTROCHEMICAL CELLS
Bioelectrochemistry is a branch of electrochemistry and biophysical chemistry concerned with electrophysiological topics like cell electron-proton transport, cell membrane potentials and electrode reactions of redox enzymes (in Wikipedia).
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Bio-electrochemical systems (BESs) are electrochemical systems based on biological techniques. Recently, many types of BESs have developed according to their purposes in a variety of fields (Kim et al. Bioelectronic platforms for optimal bio-anode of bio-electrochemical systems: From nano- to macro scopes, Bioresour Technol, 2015, 195:2-13).
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Microbial fuel cell (MFC) is one of bio-electrochemical systems which employ microorganisms as biocatalyst to generate electron by oxidation of organic matters in anode, and produce electrical power by combination of cathode reaction. MFC is a mother technology of BESs, and have studied on the application of organic waste/wastewater treatment concomitant with electrical power production.
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Enzyme fuel cell is a biological fuel cell system which uses "redox-enzyme" as anodic catalytic component for taking reducing power on substrate oxidation. Sometimes, enzymatic oxygen reduction in cathode is also applied in the system and operation. "Enzyme-electrode" is a composite type of component in anode as well as cathode electrode. It is necesary to fabricate "close proximity" condition in enzyme-electrode due to having an efficient electron transfer.
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Selected recent publications related to bioelectrochemical cells & application
Lee H et al (under revision) Orientation-controllable enezyme cascade on electrode for bioelectrocatalytic chain reaction. ACS Applied Materials and Interfaces
Lee H et al (2023) Versatile biosynthetic approach to regioselective enzyme patterning for direct bioelectrocatalysis application. Advanced Materials Technologies, 220011324
Reginald SS et al (2022) Control of carbon monoxide dehydrogenase orientation by site-specific immobilization enables direct electrical contact between enzyme cofactor and solid surface. Communications Biology, 5(390)
Reginald SS et al (2021) Functional expression of a Mo-Cu-dependent carbon monoxide dehydrogenase (CODH) and its use as a dissolved CO bio-microsensor. ACS Sensors, 6(7):2772-2782
Lee H et al (2020) Biosensing and electrochemical properties of flavin adenine dinucleotide (FAD)-dependent glucose dehydrogenase (GDH) fused to a gold binding peptide. Biosensors and Bioelectronics, 165:112427
Kim B et al (2020) Controlling voltage reversal in microbial fuel cells. Trends in Biotechnology, 38(6):667-678
Lee H et al (2019) Significant enhancement of direct electric communication across enzyme-electrode interface via nano-patterning of synthetic glucose dehydrogenase on spatially tunable gold nanoparticle (AuNP)-modified electrode. Biosensors and Bioelectronics, 126:170-177
Lee YS et al (2018) Construction of uniform monolayer- and orientation-tunable enzyme electrode by a synthetic glucose dehydrogenase without electron-transfer subunit via optimized site-specific gold-binding peptide capable of direct electron transfer. ACS Applied Materials and Interfaces, 10(34):28615-28626
