期刊
JOURNAL OF CENTRAL SOUTH UNIVERSITY
卷 22, 期 4, 页码 1220-1226出版社
JOURNAL OF CENTRAL SOUTH UNIV
DOI: 10.1007/s11771-015-2636-1
关键词
magnetic microspheres; gelatin; starch; bovine serum albumin; adsorption
资金
- Guangdong Provincial Key Laboratory for the Green Chemicals, China [GC201204]
The magnetic gelatin-starch microspheres were prepared by modified emulsion cross-linking method with glutaraldehyde as the cross-linking agent. The structure, size distribution as well as morphology of magnetic microspheres were investigated by FT-IR spectrometer, dynamic laser scattering analyzer and scanning electron microscope, respectively. Bovine serum album (BSA) was chosen as model protein, and the adsorption processes were carried out under diversified conditions including BSA initial concentration, pH value, adsorption time and temperature to evaluate the performance of the magnetic microspheres. The average diameter of optimized spherical magnetic microspheres is 1.6 mu m with excellent dispersivity, and the saturation magnetization is found to be equal to 1.056x10(-2) A center dot m(2). The adsorption isotherm of the BSA on the magnetic microspheres basically obeys the Langmuir model, with a maximum adsorption capacity of 120 mg/g and an adsorption equilibrium constant of 1.60 mL/mg.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据