Nanosphere Files for IPO

Nanosphere Inc., a Northbrook, Ill.-based molecular diagnostics company with a nanotech-based platform to enable earlier disease detection and treatment, has filed for a $100 million IPO. It plans to trade on the Nasdaq under ticker symbol NSPH, with Lehman Brothers serving as lead underwriter. Nanosphere has raised around $80 million in VC funding since 2000, from firms like Brookside Capital Partners, Lurie Investments Bain Capital Ventures and Allen & Company. www.nanosphere.us