Preparation and properties of nano-sized Ag and Ag2S particles in biopolymer matrix D. K. Božanić, V. Djoković, J. Blanuša, P. S. Nair, M. K. Georges and T. Radhakrishnan Eur. Phys. J. E, 22 1 (2007) 51-59 Published online: 21 February 2007 DOI: 10.1140/epje/e2007-00008-y