Electron Transfer Mechanism at the Interface of Multi-Heme Cytochromes and Metal Oxide.

ABSTRACT: Electroactive microbial cells have evolved unique extracellular electron transfer to conduct the reactions via redox outer-membrane (OM) proteins. However, the electron transfer mechanism at the interface of OM proteins and nanomaterial remains unclear. In this study, the mechanism for the electron transfer at biological/inorganic interface is investigated by integrating molecular modeling with electrochemical and spectroscopic measurements. For this purpose, a model system composed of OmcA, a typical OM protein, and the hexagonal tungsten trioxide (h-WO₃ ) with good biocompatibility is selected. The interfacial electron transfer is dependent mainly on the special molecular configuration of OmcA and the microenvironment of the solvent exposed active center. Also, the apparent el

SUBMITTER: Yu SS 

PROVIDER: S-EPMC10582406 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature