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Star-shaped polymer consisting of a porphyrin core and poly(L-lysine) dendron arms: synthesis, drug delivery and in vitro chemo/photodynamic therapy
作者:[1] Dong Ma, Zong-Hua Liu, Qian-Qian Zheng, Xiao-Yan Zhou, Yi Zhang, Yun-Feng Shi, Jian-Tao Lin, Wei
關鍵字:star polymer, porphyrin, chemo/photodynamic therapy
論文來源:期刊
具體來源:Macromolecular Rapid Communications
發表時間:2013年
A novel star-shaped polymer, porphyrin-poly(L-lysine) dendrons (PP-PLLD), is synthesized by the click reaction between azido-modifi ed porphyrin and propargyl focal point poly(L-lysine) dendrons. Its chemical structure is characterized by 1 H nuclear magnetic resonance, Fourier transform infrared spectroscopy, and gel permeation chromatography (GPC) is analyses etc. Due to its amphiphilic property, the obtained PP-PLLD has a low critical micelle concentration in an aqueous solution, and can load doxorubicin (DOX) with a loading amount of 64 μ g mg ? 1 . By in vitro toxicity assay, PP-PLLD has no dark cytotoxicity but has signifi cant phototoxicity. Moreover, DOX-loaded PP-PLLD shows a higher cytotoxicity under the light condition than PP-PLLD or DOX alone, suggesting PP-PLLD has a potential application in combined photodynamic therapy and chemotherapy.
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