期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 34, 期 6, 页码 548-552出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201200742
关键词
combined therapy; dendrons; poly(L-lysine); porphyrin; star polymers
资金
- National Natural Science Foundation of China [21104099, 31271019, 81101151]
- Fundamental Research Funds for the Central Universities [21612455]
- Natural Science Foundation of Guangdong Province [S2011010004545]
- Science and technology projects of Guangdong Province [2011B031300006]
- Key Project of Scientific and Technical Innovation for Universities in Guangdong Province [cxzd1109]
- Science and technology projects of Tianhe District in Guangzhou [104ZH084]
A novel star-shaped polymer, porphyrin-poly(L-lysine) dendrons (PP-PLLD), is synthesized by the click reaction between azido-modified porphyrin and propargyl focal point poly(L-lysine) dendrons. Its chemical structure is characterized by 1H 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 g mg1. By in vitro toxicity assay, PP-PLLD has no dark cytotoxicity but has significant 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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