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- W2110990574 abstract "Novel amphiphilic block copolymers consisting of hydrophobic poly(D,L-lactide) segments and hydrophilic poly( N-isopropylacrylamide- co- N, N-dimethylacrylamide) blocks were designed and synthesized through a simple free radical copolymerization route based on a bifunctional initiator, followed by the ring-opening polymerization of D,L-lactide. The copolymers self-assembled into thermosensitive spherical-nanosized core–shell micelles in aqueous solution in the presence or the absence of the model drug prednisone. The chemical and physical characterizations of drug-loaded and unloaded micelles revealed a lower critical solution temperature of 40°C–47°C, and a critical micelle concentration less than 7.20 mg L −1 , a transmission electron microscope mean particle size from 50 to 75 nm, and a narrow dynamic light scattering diameter below 180 nm. The prepared blank and drug-loaded micellar nanoparticles were thermodynamically stabile and employed in targeted drug delivery by responding to the higher temperature of the local microenvironment. Based on prednisone release kinetic studies, structural changes of the self-assembled micelles as well as temperature- or environment-induced diffusion controlled drug release and improved bioavailability. The copolymer micelles exhibited good biocompatibility as established by the MTT cytotoxicity assay. Therefore, an effective target therapy against lesion tissues is feasible using these polymeric micelles." @default.
- W2110990574 created "2016-06-24" @default.
- W2110990574 creator A5046106372 @default.
- W2110990574 creator A5051642723 @default.
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- W2110990574 date "2013-01-01" @default.
- W2110990574 modified "2023-10-11" @default.
- W2110990574 title "Thermosensitive poly(<i>N</i>-isopropyl acrylamide-<i>co</i>-<i>N,N</i>-dimethyl acryl amide)-block-poly(<scp>d,l</scp>-lactide) amphiphilic block copolymer micelles for prednisone drug release" @default.
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- W2110990574 doi "https://doi.org/10.1177/0883911512471270" @default.
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