Mechanically Controlled Electron Transfer in a Single-Polypeptide Transistor.

ABSTRACT: Proteins are of interest in nano-bio electronic devices due to their versatile structures, exquisite functionality and specificity. However, quantum transport measurements produce conflicting results due to technical limitations whereby it is difficult to precisely determine molecular orientation, the nature of the moieties, the presence of the surroundings and the temperature; in such circumstances a better understanding of the protein electron transfer (ET) pathway and the mechanism remains a considerable challenge. Here, we report an approach to mechanically drive polypeptide flip-flop motion to achieve a logic gate with ON and OFF states during protein ET. We have calculated the transmission spectra of the peptide-based molecular junctions and observed the hallmarks of electrical curre

SUBMITTER: Sheu SY 

PROVIDER: S-EPMC5209712 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature