In vivo and in vitro investigation of photosensitizer-adsorbed superparamagnetic nanoparticles for photodynamic therapy

被引:6
作者
Park, SI [1 ]
Lim, JH
Kim, JH
Yun, HI
Kim, CO
机构
[1] Chungnam Natl Univ, Dept Mat Engn, Taejon 305764, South Korea
[2] Chungnam Natl Univ, Div Vet Pharmacol & Toxicol, Taejon 305764, South Korea
[3] Chungnam Natl Univ, Res Ctr Adv Magnet Mat, Taejon 305764, South Korea
关键词
cancer cell; in vivo; in vitro; magnetic particle; photodynamic therapy; photosensitizer;
D O I
10.1109/TMAG.2005.854462
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Superparamagnetic particles of Fe3O4 were nanometrically synthesized by coprecipitation. Hematoporphyrin (HP) and 5-aminole-vulinic acid (ALA) were used as photosensitizers, which were adsorbed on magnetic particles. The adsorption rates of HP and ALA were observed to 2.0% and 12.5% by UV spectrometry and the pico-tag method, respectively. The toxicity of the magnetic fluids was estimated using Sprague-Dawley rats. The photodynamic effect of the photosensitizer-adsorbed magnetic fluids was examined with a human lung cancer cell, for which the light doses were applied to 400 mJ/cm(3).
引用
收藏
页码:4111 / 4113
页数:3
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