Symposium on bioelectrochemistry of microorganisms. II. Electrochemical aspects of metabolism.

Allen, M J

doi:10.1128/mmbr.30.1.80-93.1966

Cited by 12 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[19,31,32] An EET pathway can be constructed even for general microbes without OMC by using electron mediators with cell membrane permeability. In fact, the history of whole-cell electrochemistry using mediators dates back to 1885, [33] and has thus been known about much longer than microbes possessing OMC. As described in Section 2.1 in detail, EET pathways via electron mediators have been accomplished using small redoxactive molecules, such as quinones, [34] flavins, [35] and viologens.…”

Section: Introductionmentioning

confidence: 99%

Redox‐Active Polymers Connecting Living Microbial Cells to an Extracellular Electrical Circuit

Kaneko

Ishihara

Nakanishi

2020

Small

View full text Add to dashboard Cite

Microbial electrochemical systems in which metabolic electrons in living microbes have been extracted to or injected from an extracellular electrical circuit have attracted considerable attention as environmentally‐friendly energy conversion systems. Since general microbes cannot exchange electrons with extracellular solids, electron mediators are needed to connect living cells to an extracellular electrode. Although hydrophobic small molecules that can penetrate cell membranes are commonly used as electron mediators, they cannot be dissolved at high concentrations in aqueous media. The use of hydrophobic mediators in combination with small hydrophilic redox molecules can substantially increase the efficiency of the extracellular electron transfer process, but this method has side effects, in some cases, such as cytotoxicity and environmental pollution. In this Review, recently‐developed redox‐active polymers are highlighted as a new type of electron mediator that has less cytotoxicity than many conventional electron mediators. Owing to the design flexibility of polymer structures, important parameters that affect electron transport properties, such as redox potential, the balance of hydrophobicity and hydrophilicity, and electron conductivity, can be systematically regulated.

show abstract