Impedance spectroscopy of single bacterial nanofilament reveals water-mediated charge transfer.

ABSTRACT: For decades respiratory chain and photosystems were the main firing field of the studies devoted to mechanisms of electron transfer in proteins. The concept of conjugated lateral electron and transverse proton transport during cellular respiration and photosynthesis, which was formulated in the beginning of 1960-s, has been confirmed by thousands of experiments. However, charge transfer in recently discovered bacterial nanofilaments produced by various electrogenic bacteria is regarded currently outside of electron and proton conjugation concept. Here we report the new study of charge transfer within nanofilaments produced by Shewanella oneidensis MR-1 conducted in atmosphere of different relative humidity (RH). We utilize impedance spectroscopy and DC (direct current) transport measuremen

SUBMITTER: Grebenko A 

PROVIDER: S-EPMC5774759 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature