Skip to main content
Journal cover image

Temperature Dependence of Charge and Spin Transfer in Azurin.

Publication ,  Journal Article
Sang, Y; Mishra, S; Tassinari, F; Karuppannan, SK; Carmieli, R; Teo, RD; Migliore, A; Beratan, DN; Gray, HB; Pecht, I; Fransson, J; Naaman, R ...
Published in: The journal of physical chemistry. C, Nanomaterials and interfaces
May 2021

The steady-state charge and spin transfer yields were measured for three different Ru-modified azurin derivatives in protein films on silver electrodes. While the charge-transfer yields exhibit weak temperature dependences, consistent with operation of a near activation-less mechanism, the spin selectivity of the electron transfer improves as temperature increases. This enhancement of spin selectivity with temperature is explained by a vibrationally induced spin exchange interaction between the Cu(II) and its chiral ligands. These results indicate that distinct mechanisms control charge and spin transfer within proteins. As with electron charge transfer, proteins deliver polarized electron spins with a yield that depends on the protein's structure. This finding suggests a new role for protein structure in biochemical redox processes.

Duke Scholars

Published In

The journal of physical chemistry. C, Nanomaterials and interfaces

DOI

EISSN

1932-7455

ISSN

1932-7447

Publication Date

May 2021

Volume

125

Issue

18

Start / End Page

9875 / 9883

Related Subject Headings

  • Physical Chemistry
  • 40 Engineering
  • 34 Chemical sciences
  • 10 Technology
  • 09 Engineering
  • 03 Chemical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Sang, Y., Mishra, S., Tassinari, F., Karuppannan, S. K., Carmieli, R., Teo, R. D., … Naaman, R. (2021). Temperature Dependence of Charge and Spin Transfer in Azurin. The Journal of Physical Chemistry. C, Nanomaterials and Interfaces, 125(18), 9875–9883. https://doi.org/10.1021/acs.jpcc.1c01218
Sang, Yutao, Suryakant Mishra, Francesco Tassinari, Senthil Kumar Karuppannan, Raanan Carmieli, Ruijie D. Teo, Agostino Migliore, et al. “Temperature Dependence of Charge and Spin Transfer in Azurin.The Journal of Physical Chemistry. C, Nanomaterials and Interfaces 125, no. 18 (May 2021): 9875–83. https://doi.org/10.1021/acs.jpcc.1c01218.
Sang Y, Mishra S, Tassinari F, Karuppannan SK, Carmieli R, Teo RD, et al. Temperature Dependence of Charge and Spin Transfer in Azurin. The journal of physical chemistry C, Nanomaterials and interfaces. 2021 May;125(18):9875–83.
Sang, Yutao, et al. “Temperature Dependence of Charge and Spin Transfer in Azurin.The Journal of Physical Chemistry. C, Nanomaterials and Interfaces, vol. 125, no. 18, May 2021, pp. 9875–83. Epmc, doi:10.1021/acs.jpcc.1c01218.
Sang Y, Mishra S, Tassinari F, Karuppannan SK, Carmieli R, Teo RD, Migliore A, Beratan DN, Gray HB, Pecht I, Fransson J, Waldeck DH, Naaman R. Temperature Dependence of Charge and Spin Transfer in Azurin. The journal of physical chemistry C, Nanomaterials and interfaces. 2021 May;125(18):9875–9883.
Journal cover image

Published In

The journal of physical chemistry. C, Nanomaterials and interfaces

DOI

EISSN

1932-7455

ISSN

1932-7447

Publication Date

May 2021

Volume

125

Issue

18

Start / End Page

9875 / 9883

Related Subject Headings

  • Physical Chemistry
  • 40 Engineering
  • 34 Chemical sciences
  • 10 Technology
  • 09 Engineering
  • 03 Chemical Sciences