Chiral Recognition of l-Gramicidine on Chiraly Methionine-Modified Au(111).
A chiral pentadecapeptide, l-gramicidine, has been shown to undergo specific adsorption onto gold surfaces modified by chiral amino acids, d- and l-methionine, upon adsorption in the liquid phase. There is a chiral recognition only between the slightly anionic l-peptide and the l-modified surface exhibiting cationic molecules. However, whatever the probe and target molecule charges, very weak recognition was observed between molecules of opposite chirality.
Laboratoire de Réactivité de Surface, UMR CNRS 7197, Université Pierre et Marie Curie - UPMC case 178, 4 place Jussieu, 75005 Paris, France.
Vincent
V
Humblot
Laboratoire de Réactivité de Surface, UMR CNRS 7197, Université Pierre et Marie Curie - UPMC case 178, 4 place Jussieu, 75005 Paris, France.
Claire-Marie
CM
Pradier
L-gramicidine; chiral recognition; chiral surface; d-methionine; l-methionine; liquid phase