期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
卷 21, 期 7, 页码 2095-2101出版社
SPRINGER
DOI: 10.1007/s10856-010-4067-8
关键词
-
资金
- National Natural Science Foundation of China [20603018]
A new hypocrellin A (HA) encapsulated silica nanoparticles was prepared by an improved microemulsion method based on the unique character of cetyl trimethyl ammonium bromide (CTAB). Stable aqueous dispersions of the HA-loaded nanoparticles, with the diameter about 50 nm, owned superior photo-stability and singlet oxygen generation ability to free HA. In vitro studies demonstrated the active uptake of HA-doped nanoparticles into the cytosol of HeLa (human cervix epithelioid carcinoma) cells. Significant morphology change and phototoxicity to such impregnated tumor cells was observed upon irradiation with light. Thus, the potential of using this method to prepare silica nanoparticles as drug carriers for photodynamic therapy has been demonstrated.
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