Crosslinked biocompatible compositions comprising an ionically crosslinked component and a covalently crosslinked component for encapsulating biologics are disclosed. In accordance with the present invention, also disclosed are crosslinkable biocompatible mixtures comprising an ionically crosslinkable...http://www.google.com.au/patents/US5550178?utm_source=gb-gplus-sharePatent US5550178 - Process for encapsulating biologics using crosslinkable biocompatible encapsulation system
