Synthesis and biochemical properties of fluorescent/magnetic bifunctional starch particles

查看全文 作　　者：[1]王凤华;[1,2]刘俊;[1]唐冬英;[1]薛昌刚;[1]肖苏尧;[1]郑元青;[1]童春义;[3]王玲玲;[1]刘选明

机构地区：[1]College of Life Science and Biotechnology,Hunan University;[2]College of Materials Science and Engineering,Hunan University;[3]School of Physics and Microelectronics Science,Hunan University

出　　处：《Journal of Central South University》索引2010年第17卷第2期,共7页

基　　金：Project(200501) supported by the '985' Program of China 摘　　要：Magnetic starch particles(MSPs) were synthesized in water-in-oil microemulsion at room temperature.MSPs were characterized by transmission electron microscopy(TEM),Fourier transform infrared spectrometry(FTIR),zeta potential system,thermogravimetric analysis(TGA) and vibrating sample magnetometry(VSM).The average diameter of the MSPs was 220 nm,dispersed with well-proportioned size and magnetic resonance,the saturation magnetization was 3.64 A·m2/kg.MSP was coated with poly-L-lysine(PLL),and then the surface of PLL-MSP was combined with fluorescein isothiocynate(FITC).Results show that fluorescent/magnetic starch particles(FMSPs) are of stable photo-bleaching capability compared with free FITC,with low bio-toxicity and certain function of magnetic separation.It is expected that FMSPs are bifunctional nano-materials including fluorescence labelling and magnetic separation. 关键词：异硫氰酸荧光素淀粉颗粒生化特性磁性合成傅立叶变换红外光谱仪双功能透射电子显微镜

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Synthesis and biochemical properties of fluorescent/magnetic bifunctional starch particles

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