Spin-dependent electron transmission through bacteriorhodopsin embedded in purple membrane

Mishra D., Markus T., Naaman R., Kettner M., Göhler B., Zacharias H., Friedman N., Sheves M., Fontanesi C.

Research article (journal)

Abstract

Spin-dependent photoelectron transmission and spin-dependent electrochemical studies were conducted on purple membrane containing bacteriorhodopsin (bR) deposited on gold, aluminum/aluminum-oxide, and nickel substrates. The result indicates spin selectivity in electron transmission through the membrane. Although the chiral bR occupies only about 10% of the volume of the membrane, the spin polarization found is on the order of 15%. The electrochemical studies indicate a strong dependence of the conduction on the protein's structure. Denaturation of the protein causes a sharp drop in the conduction through the membrane.

Details zur Publikation

Pages: 5
Release year: 2013
Language in which the publication is written: English
Link to the full text: http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84883757347&origin=inward