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2015 ; 30
(2
): 133-9
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Biotechnological Aspects of Microbial Extracellular Electron Transfer
#MMPMID26004795
Kato S
Microbes Environ
2015[]; 30
(2
): 133-9
PMID26004795
show ga
Extracellular electron transfer (EET) is a type of microbial respiration that
enables electron transfer between microbial cells and extracellular solid
materials, including naturally-occurring metal compounds and artificial
electrodes. Microorganisms harboring EET abilities have received considerable
attention for their various biotechnological applications, in addition to their
contribution to global energy and material cycles. In this review, current
knowledge on microbial EET and its application to diverse biotechnologies,
including the bioremediation of toxic metals, recovery of useful metals,
biocorrosion, and microbial electrochemical systems (microbial fuel cells and
microbial electrosynthesis), were introduced. Two potential biotechnologies based
on microbial EET, namely the electrochemical control of microbial metabolism and
electrochemical stimulation of microbial symbiotic reactions (electric
syntrophy), were also discussed.