BOSTON & PERTH, Australia--(BUSINESS WIRE)--June 5, 2006--Global bio-nanotech company pSivida Limited (NASDAQ:PSDV - News; ASX:PSD - News; Xetra:PSI - News) today announced that the eligible Directors of the Company have confirmed that they will be taking up rights to subscribe for pSivida shares under their respective individual entitlements.