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.

Spin-dependent electron transmission through bacteriorhodopsin embedded in purple membrane / Mishra, Debabrata; Markus, Tal Z; Naaman, Ron; Kettner, Matthias; Göhler, Benjamin; Zacharias, Helmut; Friedman, Noga; Sheves, Mordechai; Fontanesi, Claudio. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 0027-8424. - STAMPA. - 110:37(2013), pp. 14872-14876. [10.1073/pnas.1311493110]

Spin-dependent electron transmission through bacteriorhodopsin embedded in purple membrane

FONTANESI, Claudio
2013

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.
2013
110
37
14872
14876
Spin-dependent electron transmission through bacteriorhodopsin embedded in purple membrane / Mishra, Debabrata; Markus, Tal Z; Naaman, Ron; Kettner, Matthias; Göhler, Benjamin; Zacharias, Helmut; Friedman, Noga; Sheves, Mordechai; Fontanesi, Claudio. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 0027-8424. - STAMPA. - 110:37(2013), pp. 14872-14876. [10.1073/pnas.1311493110]
Mishra, Debabrata; Markus, Tal Z; Naaman, Ron; Kettner, Matthias; Göhler, Benjamin; Zacharias, Helmut; Friedman, Noga; Sheves, Mordechai; Fontanesi, Claudio
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1064768
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