Spin-dependent electron transmission through bacteriorhodopsin embedded in purple membrane.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 23980184.
- Also identified by DOI 10.1073/pnas.1311493110 and PMC identifier 3773807.
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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.
Medical subject headings
- Bacteriorhodopsins
- Purple Membrane