WATERTOWN, Mass.--(BUSINESS WIRE)--Drug delivery company pSivida Corp. (NASDAQ:PSDV)(ASX:PVA) today announced it ranked 59th on the Deloitte 2011 Technology Fast 500™, ranking of the 500 fastest growing technology, media, telecommunications, life sciences and clean technology companies in North America. pSivida grew at a rate of 2125 percent over the past five years.
