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Three hydrophobic leucine-rich peptides Fc18L, Ac18L and 18LAc were prepared. These peptides are equipped with a cystein sulfhydryl group which enables the formation of thin films on gold surfaces. Using these peptides, two types of films of α-helical peptides have been prepared, in which the redox-active peptide Fc18L is diluted by Ac18L (SAM1) or by a mixture of Ac18L and 18LAc (SAM2). In SAM1,...
The electrochemistry of thin film of two ferrocene–peptide conjugates is examined and the electron transfer kinetics is evaluated. The Tafel plots indicate a significant asymmetry for the oxidative and reductive step which is attributed to molecular movement of the peptide on the surface.
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