Conductance of a biomolecular wire.
Proc Natl Acad Sci U S A
; 103(23): 8686-90, 2006 Jun 06.
Article
de En
| MEDLINE
| ID: mdl-16728508
ABSTRACT
Carotenoids (Car) act as "wires" that discharge unwanted electrons in the reaction center of higher plants. One step in this "side-path" electron conduction is thought to be mediated by Car oxidation. We have carried out direct measurements of the conductance of single-Car molecules under potential control in a membrane-mimicking environment, and we found that when Car are oxidized conductance is enhanced and the electronic decay constant (beta) is decreased. However, the neutral molecule may already be conductive enough to account for observed electron transfer rates.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Caroténoïdes
/
Conductivité électrique
Langue:
En
Journal:
Proc Natl Acad Sci U S A
Année:
2006
Type de document:
Article
Pays d'affiliation:
États-Unis d'Amérique