文献类型：期刊文献

英文题名：Synthesis of Mesoporous Silica-Coated Magnetic Nanocomposites Using Polyethylene Glycol-Polylactic Acid as a New Template

作者：Fu, Hua[1,2];Chen, Yuqing[1];Zhang, Hongyang[1];Wang, Yuerong[1];Zhang, Min[3];Hu, Ping[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]Qinghai Univ, Sch Chem Engn, Xining 810016, Peoples R China;[3]East China Univ Sci & Technol, Sch Pharm, New Drug Design & Modern Engn Ctr TCM, Shanghai Key Lab, Shanghai 200237, Peoples R China

年份：2017

卷号：17

期号：5

起止页码：3077

外文期刊名：JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY

收录：;EI(收录号：20171203466674);WOS:【SCI-EXPANDED(收录号:WOS:000397855000033)】；

基金：This research was supported financially by the National Natural Science Foundation of China (Nos. 81273481 and 81202493). This is an open project of State Key Laboratory of Quality Research in Chinese Medicine (Macau University of Science and Technology, MUST-SKL-2016-06) funded by the Macao Science and Technology Development Fund, Macau Special Administrative Region.

语种：英文

外文关键词：Magnetic Materials; Nanocomposites; Template; Adsorption Capacity

摘要：We applied high-molecular-weight di-block copolymer polyethylene glycol-polylactic acid as a new template to synthesize magnetic mesoporous silica material. The new template have advantages of a moderate molecular weight and its micelles can be regulated by pH and temperature. By using micelles to prepare magnetic mesoporous silica material, a facile micelle prepare route without inorganic salt addition were proposed. The new magnetic mesoporous silica material has medium-sized (4.7-8.5 nm) pore cavities, a high surface area (705-464 m(2) g(-1)), a large pore volume (0.38-0.82 cm(3) g(-1)), is environmentally stable and is capable of magnetic separation. Its adsorption capacity as tested using bovine serum albumin, sialic acid and quercetin as probes was efficient on macromolecules and small biological molecule compounds because of its specific pore size, which could be useful for drug carrying, separation and enrichment in biotechnological pre-analytical processes.