Synthesis and modification of superparamagnetic nanocompositions (Fe3O4/PVA)/SiO2
(0) The synthesis of micro (or nano-) magnetic silica has been attracting intense interest due to their wide promising applications, especially protein. Nanocomposites (Fe3O4/PVA)/SiO2 have been prepared by three-step approch (co-precipitation, miniemulsion polymerization, St?ber process) and structurally characterized by TEM. In order to make the particles multifunctional, aldehyde group and amino group are modified on the surface. To make sure that the synthetical particles is effective, a series of experiments were carrie on. According the standard curve by BSA standard solution, the adsorption capacity and efficiency, the storage times effect on firmness, temperature resistance test and temperature resistance test were all emphatically tested. The results show that the absorption between the magnetic nanoparticles and protein was not influenced by certain time, or temperature. They exhibited high nonspecific adsorption capacity for a specific protein BSA.
magnetic nanoparticles BSA capture capability time temperature
Ya-Fei Guo Zhi-Fei Wang Song Li Ting Wang Zhang-Qi Feng Li-Jian Xu Nong-Yue He
Department of Analytical Chemistry, School of public health, Southeast University;State Key Laborato State Key Laboratory of Bioelectronics, Nanjing, China,210096
国际会议
The 5th International Forum on Post-genome Technologies(5IFPT)(第五届国际后基因组生命科学技术学术论坛)
苏州
英文
2007-09-10（万方平台首次上网日期，不代表论文的发表时间）