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Journal of Materials Science: Materials in Medicine (J Mater Sci: Mater Med) 2010, 21, 1881–1890  
Journal of Materials Science: Materials in Medicine (J Mater Sci: Mater Med) 2010, 21, 1881–1890
資料類型: PDF文件
關鍵詞: poly(ε-capro1actone)  PNIPAAm-co-PAAc-co-P(HEMA-PCL)  graft  copolymer  self  assembly  core-shell  
structure  drug  delivery  
資料大小: 821k
所屬學科: 功能高分子
來源: 來源網絡
簡介:
Themacromonomer of 2-hydroxyethyl methyacrylate-caprolactone (HEMA-PCL) was synthesized by the ring-opening polymerization (ROP) of ε-caprolactone initiated by 2-hydroxyethyl methyacrylate (HEMA). The graft terpolymers of PNIPAAm-co-PAAc-co-P(HEMA-PCL) with varying mole ratios were subsequently synthesizedby free radical polymerization of HEMA-PCL, N-isopropylacrylamide (NIPAAm) and acrylic acid (AAc). The copolymers were characterized by NMR、FT-IR and GPC and were self-assembly in the selective solvent. Micellization behaviors of micelles were studied by TEM and DLS. The micelles exhibited a phase transition temperature which can be readily adjusted by controlling the components of copolymer in the preparation process and pH value in the micellization system. Micelle loaded with doxorubicin (DOX) was used to evaluate the drug release behavior. The release of DOX from micelles could be controlled by varying the pH and temperature in buffer solutions. This new prepared PNIPAAM-co-PAAC-co-P(HEMA-PCL) nanoparticles are expected to potentially use as a new anticancerdrug carrier for intracellular delivery.
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上傳時間: 2010-09-08 20:15:44
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reillyyam    2011-01-13 12:49:20
正是我找的資料!
20070800217    2010-11-04 22:52:53
研究的實質可以
fanxinql    2010-10-31 23:40:45
研究內容較好
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