Ultrasonic-assisted synthesis and strepavidin conjugation of amino-magnetic nanoparticles

MISCELLANEOUS

Ultrasonic-assisted synthesis and strepavidin conjugation of amino-magnetic nanoparticles

LIU Li，

JIAO Qinghua，

PENG Cheng，

HE Shijiang，

WANG Lihua

Nuclear Science and Techniques

Vol.19, No.6

pp.370-375

Published in print 20 Dec 2008

DOI：10.1016/S1001-8042(09)60021-X

CLC：TB383,O482.5

31000

MNPs are widely used in biotechnology, magnetic resonance imaging, catalysis and other areas. In this paper, we propose a simple, quick, inexpensive and efficient way to prepare amino-MNPs with sonication-assisted process. The amino-MNPs prepared by hydrolyzing TEOS and APS were characterized by SEM, TEM and FTIR. Conjugation of SA and amino-MNPs was also studied. The biotin bound capacity of prepared SA coated amino-MNPs was 1.824 nmol/mg, which well meet the need of biological application.

Magnetic nanoparticlesStrepavidinBiotin bound capacitySonication-assisted surface treatment

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