Poly ( ethylene glycol ) and poly ( N-vinlypyrrolidone ) for improved porcine islet cryopreservation

Abstract

Water-soluble polymers poly(ethylene glycol) (PEG) and poly(N-vinylpyrrolidone) (PVP) were used to study cryopreservation of porcine islets. DMSO was used as control. The effects of polymer purity, molecular weight (MW) and concentration on islet viability were investigated. The results show that both PVP and PEG are good cyroprotectant candidates for islet… (More)

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