Etectronic coupling between azurin and gold at different protein/substrate orientations (Articolo in rivista)

Type
Label
  • Etectronic coupling between azurin and gold at different protein/substrate orientations (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Venkat, AS; Corni, S; Di Felice, R (2007)
    Etectronic coupling between azurin and gold at different protein/substrate orientations
    in Small (Weinh., Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Venkat, AS; Corni, S; Di Felice, R (literal)
Pagina inizio
  • 1431 (literal)
Pagina fine
  • 1437 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 3 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • INFM CNR, Natl Res Ctr NanoStruct & BioSyst Surfaces S3, I-41100 Modena, Italy (literal)
Titolo
  • Etectronic coupling between azurin and gold at different protein/substrate orientations (literal)
Abstract
  • By means of constrained classical molecular dynamics simulations, we have computed the structure of azurin deposited on a Au(111) surface at different possible orientations and the azimuthal forces acting on the protein at each sampled conformation. We have then evaluated the effect of the angular variation on the speed of electron tunneling between the protein redox site and the metal surface. We find that the azurin/gold electronic coupling has a strong dependence on the molecular orientation and is greatly enhanced by inclining the protein to lie as flat as possible on the surface. We discuss the implications of our results for scanning probe microscopy experiments in which tunneling currents are measured while the protein is subjected to mechanical forces exerted by the tip of the instrument. (literal)
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