Density functional study of the cysteine adsorption on Au nanoclusters L. A. Pérez, X. López-Lozano and I. L. Garzón Eur. Phys. J. D, 52 1-3 (2009) 123-126 Published online: 24 January 2009 DOI: 10.1140/epjd/e2008-00289-5