Abstract

Au and Cu selective adsoprtion and monolayer formation of thiol containing molecules makes them attractive as materials to study the selective adsorption followed by in situ chemical modification of cysteine, an important aminoacid in peptide synthesis. Therefore, in this work it was demonstrated that chemiadsorbed cysteine in gold and copper electrodes can be chemically protected with CBZ and Fmoc protecting groups. This was supported by comparison of the electrochemical desorption voltamperograms, infrared spectra and contact angle values of metal monolayers with protected and non-protected cysteine.

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