(1). Sarkar, P et al. Size-dependent properties of hollow ZnS nanoclusters ,Journal of Physical Chemistry C, Volume 112, Issue 16, 24 April 2008, Pages 6307-6312 (2). Zhou H et al. Novel bacteria-templated sonochemical route for the in situ one-step synthesis of ZnS hollow nanostructures, Chemistry of Materials,Volume 19, Issue 9, 1 May 2007, Pages 2144-2146 (3). Ma Y et al. Facile synthesis of hollow ZnS nanospheres in block copolymer solutions, Langmuir ,Volume 19, Issue 9, 29 April 2003, Pages 4040-4042