Browse Items (9 total)

The synthesis of "smart" tricomponent amphiphilic membranes containing poly(ethylene glycol) (PEG), polydimethylsiloxane (PDMS) and polypentamethylcyclopentasiloxane (PD(5)) domains is described. Contact angle hysteresis indicates that in air, the…

Two generations of amphiphilic membranes synthesized in our laboratories for biologicaUniedical applications are highlighted. Recent results obtained with representative 2nd generation membranes designed specifically for immunoencapsulation of…

A convenient laboratory process for the preparation of thin-walled (similar to 0.02 cm) tubular amphiphilic membranes has been developed. The membranes are suitable for implantation and isolation of pancreatic islets from immune responses. The…

A series of amphiphilic networks (membranes), consisting of hydrophilic poly(N,N-dimethylacrylamide) (PDMAAM) main chains crosslinked by hydrophobic telechelic polyisobutylene di- and trimethacrylates (MA-PIB-MA or circle divide (PEB-MA)(3)) have…

Amphiphilic polymer membranes were synthesized for macroencapsulation of cells and characterized by select chemical and biological techniques. The membranes were prepared by crosslinking hydrophilic poly(N,N-dimethyl acrylamide) (PDMAAm) main chains…

We have developed a replaceable bioartificial pancreas to treat diabetes utilizing a unique cocontinous amphiphilic conetwork membrane created for macroencapsulation and immunoisolation of porcine islet cells (PICs). The membrane is assembled from…

Select semipermeable amphiphilic membranes have been prepared and their diffusional characteristics for glucose, insulin, and albumin investigated. The membranes were prepared by cast copolymerization of a hydrophilic monomer (i.e., N,N-dimethyl…
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