Preparation of L-cysteine modified Au/Fe3 O4 magnetic composite particle and its adsorption for bovine serum albumin
CHEN Zhi-jun
TANG Kai
YANG Qing-xiang
WANG Xue-zhao
ZHU Hai-yan
WEI Yong-hao
Abstract：The L-cysteine modified Au /Fe3 O4 magnetic composite particles(LC-Au /Fe3 O4 )were synthe-sized and their adsorption properties for bovine serum albumin (BSA)were investigated.The obtained sam-ples were characterized by UV-Vis spectrophotometer(UV-vis),X-ray diffraction(XRD),Fourier transform infrared spectroscopy (FT-IR),scanning electron microscope (SEM),transmission electron microscope (TEM)and Zeta potential,respectively.The results showed that Fe3 O4 of LC-Au /Fe3 O4 has a spinel struc-ture;its diameter was about 200 nm,and the particles showed good stability.The adsorption capacity of LC-Au /Fe3 O4 composite particles for BSA was 161.5 mg/g.
Keywords：Au/Fe3O4 magnetic composite particleL-cysteinebovine serum albumin adsorption
Publication Date：2013-11-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 39-43 )