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- W2105581570 abstract "Abstract Bioreducible and core‐crosslinked hybrid micelles were for the first time fabricated from biodegradable and biocompatible trimethoxysilyl‐terminated and disulfide‐bond‐linked block copolymers poly(ε‐caprolactone)‐S‐S‐poly(ethylene oxide), which were prepared by combining thiol‐ene coupling reaction and ring‐opening polymerization. The molecular structures, physicochemical, self‐assembly, and bioreducible properties of these copolymers were thoroughly characterized by means of FTIR, 1 H NMR, gel permeation chromatography, differential scanning calorimetry, wide‐angle X‐ray diffraction, dynamic light scattering (DLS), and transmission electron microscopy. The core‐crosslinking sol‐gel reaction was confirmed by 1 H NMR, and the core‐crosslinked hybrid micelles contained about 3 wt % of silica. The bioreducible property of both uncrosslinked and core‐crosslinked micelles in 10 mM 1,4‐dithiothreitol (DTT) solution was monitored by DLS, which demonstrated that the PEO corona gradually shedded from the PCL core. The anticancer doxorubicin drug‐loaded micelles showed nearly spherical morphology compared with blank micelles, presenting a DTT reduction‐triggered drug‐release profile at 37 °C. Notably, the core‐crosslinked hybrid micelles showed about twofold drug loading capacities and a half drug‐release rate compared with the uncross‐liked counterparts. This work provides a useful platform for the fabrication of bioreducible and core‐crosslinked hybrid micelles potential for anticancer drug delivery system. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012" @default.
- W2105581570 created "2016-06-24" @default.
- W2105581570 creator A5010464464 @default.
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- W2105581570 date "2012-02-03" @default.
- W2105581570 modified "2023-10-18" @default.
- W2105581570 title "Bioreducible and core-crosslinked hybrid micelles from trimethoxysilyl-ended poly(ε-caprolactone)-S-S-poly(ethylene oxide) block copolymers: Thiol-ene click synthesis and properties" @default.
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- W2105581570 doi "https://doi.org/10.1002/pola.25936" @default.
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