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pH-Sensitive degradable polymersomes and micelles were prepared based on diblock copolymer of poly(ethylene glycol) (PEG) and an acid-labile polycarbonate, poly(2,4,6-trimethoxybenzylidenepentaerythritol carbonate) (PTMBPEC). Polymersomes of PEG(1.9k)–PTMBPEC(6k) revealed average sizes of 100–200nm. The acetals of polymersomes, similar to those of PEG(5k)–PTMBPEC(5.8k) micelles, though stable at pH...
Biodegradable micelles with sheddable poly(ethylene glycol) shells were developed based on disulfide-linked poly(ethylene glycol)-b-poly(ɛ-caprolactone) (PEG-SS-PCL) diblock copolymer and applied for rapid intracellular release of doxorubicin (DOX). PEG-SS-PCL was prepared with controlled block lengths via exchange reaction between PEG orthopyridyl disulfide and mercapto PCL. The micelles formed from...
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