Synthesis and biochemical properties of fluorescent/magnetic bifunctional starch particles |
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| Authors: | Feng-hua Wang Jun Liu Dong-ying Tang Chang-gang Xue Su-yao Xiao Yuan-qing Zheng Chun-yi Tong Ling-ling Wang and Xuan-ming Liu |
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| Affiliation: | [1]College of Life Science and Biotechnology, Hunan University, Changsha 410082, China [2]College of Materials Science and Engineering, Hunan University, Changsha 410082, China [3]School of Physics and Microelectronics Science, Hunan University, Changsha 410082, China |
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| Abstract: | Magnetic starch particles (MSPs) were synthesized in water-in-oil microernulsion 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 ran, dispersed with well-proportioned size and magnetic resonance, the saturation magnetization was 3.64 A·m~2/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. |
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| Keywords: | starch-particles nano-materials synthesis fluorescent properties magnetic properties biochemical properties |
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