Photothermal Effect for Fe3O4 Nanoparticles Contained in Micelles Induced by Near-Infrared Light
LIU Guang-zhen1,2* (刘光臻), MA Jun-ping1,2 (马俊平), LIU Jia-qiang3 (刘家强)
(1. Institute for Biomedical Engineering & Nano Science, Tongji University, Shanghai 200092, China; 2. School of Materials
Science and Engineering, Tongji University, Shanghai 200092, China; 3. Key Laboratory of Rubber-Plastics of Ministry of
Education, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China)
Abstract Near infrared (NIR) light induced photothermal effect for Fe3O4 nanoparticles, contained in Pluronic
F127 micelles, has been studied and it exhibits high photothermal converting efficiency. Heat is found to be rapidly
generated in micelles containing Fe3O4 nanoparticles by NIR laser irradiation. Upon irradiation at 808 nm light
and with mass concentration of Fe3O4 nanoparticles in 4 g/L, the micelle temperature increase is higher than 34℃
for 10min irradiation. The maximum temperature of micelles containing Fe3O4 nanoparticles in 4 g/L reaches
62℃.
