BOLOGNA, Italy--(BUSINESS WIRE)--Silicon Biosystems, S.p.A., a provider of specialized molecular and cellular biology technologies, will present at the Fourth World Circulating Tumour Cells Summit, April 25, 2012 at 3:30 p.m. at the Maritim Hotel in Berlin. Dr. Nicolò Manaresi, founder and chief technology officer of Silicon Biosystems, will provide an overview of the DEPArray™ system, which uses image-based single-cell sorting to deliver pure populations of rare tumor cells.