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Drug development and industrial pharmacy

Characterization of micellar systems produced by new amphiphilic conjugates of poly(ethylene glycol).


PMID 23944836

Abstract

This study proposes polymeric micelles produced using new amphiphilic conjugates between amino- or carboxy-mPEG2000 and three different α-lipoamino acids (PEG-LAA). The characterization of these colloidal systems showed CMC values, in the order of 10(-5 )M, that are interesting in the view of an in vivo administration. The PEG-LAA micelles also showed a good stability at 37 °C and upon dilution in aqueous media. Using a colored probe as a model lipophilic compound, the loading efficiency and in vitro release profile were also outlined.

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