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【预告】美国纽约州立大学布法罗分校曾浩教授学术报告
2014-06-09 13:23  

报告题目:Magnetofluorescent Nanoplatforms for Localized RF Heating and Nanoscale Temperature Sensing  

报告地点:实验楼四层报告厅  

报告时间:2014年6月7日15:00  

曾浩,美国纽约州立大学布法罗分校副教授,山西师范大学"百人计划"特聘教授。主要从事纳米磁学、自旋电子学、光伏材料与生物磁学等方面的研究。先后获得美国IBM研究部门奖、美国科学基金会杰出青年奖和布法罗大学杰出学者奖。在Nature,Nature Nanotechnology,Nano Lett.,Advanced Materials和J. Am. Chem. Soc.等国际著名学术刊物发表SCI论文80余篇,主要论文被他人引用6000余次,其中被引用百次以上论文达14篇。  

报告摘要:Monodisperse multifunctional MnFe2O4/dye/silica core/shell nanoparticles have been designed and developed. The magnetic cores act as nano-heaters in biological systems under RF field excitation and the encapsulated dyes work as local temperature probes. The silica shells enable the water-solubility and biocompatibility of the NPs and protect the encapsulated fluorophores from photobleaching. The superparamagnetic cores possess high magnetic moment and extremely narrow size distribution, enabling tuning of the magnetic relaxation rate to render highly efficient heating. The amount of encapsulated dye molecules can be well controlled by the silica shell thickness to achieve adequate signal-to-noise ratio for realtime local temperature sensing. The demonstration of the nanoplatform with excellent radio-frequency-field heating and temperature sensing capabilities represents an important step forward for their future in vitro and in vivo applications.  

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