Synthesis and biochemical properties of fluorescent/magnetic bifunctional starch particles

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 magneto...

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Bibliographic Details
Published in:Journal of Central South University of Technology. Science & technology of mining and metallurgy 2010-04, Vol.17 (2), p.211-217
Main Authors: Wang, Feng-hua, Liu, Jun, Tang, Dong-ying, Xue, Chang-gang, Xiao, Su-yao, Zheng, Yuan-qing, Tong, Chun-yi, Wang, Ling-ling, Liu, Xuan-ming
Format: Article
Language:English
Subjects:
Engineering
Metallic Materials
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Summary: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·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.
ISSN:1005-9784
1993-0666
DOI:10.1007/s11771-010-0032-4