title: Spin-dependent electron transmission through bacteriorhodopsin embedded in purple membrane.
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.
authors: Departments of Chemical Physics and Organic Chemistry, Weizmann Institute, Rehovot 76100, Israel.
authors: Debabrata
authors: D
authors: Mishra
authors: Tal Z
authors: TZ
authors: Markus
authors: Ron
authors: R
authors: Naaman
authors: Matthias
authors: M
authors: Kettner
authors: Benjamin
authors: B
authors: Göhler
authors: Helmut
authors: H
authors: Zacharias
authors: Noga
authors: N
authors: Friedman
authors: Mordechai
authors: M
authors: Sheves
authors: Claudio
authors: C
authors: Fontanesi
mesh_terms: D001436:Bacteriorhodopsins / Q000737:chemistry*; D004563:Electrochemistry; D004578:Electron Spin Resonance Spectroscopy; D004579:Electron Transport; D008670:Metals; D018625:Microscopy, Atomic Force; D008958:Models, Molecular; D056951:Photoelectron Spectroscopy; D011487:Protein Conformation; D011489:Protein Denaturation; D018717:Purple Membrane / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D008670:Metals; D001436:Bacteriorhodopsins
keywords: chirality; electrochemistry; electron transfer; magnetic effect
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