文献类型：期刊文献

英文题名：Preparation and Characterization of Chain-Like and Peanut-Like Fe3O4@SiO2 Core-Shell Structure

作者：Shi, Haowei[1];Huang, Yan[1];Cheng, Chao[2];Ji, Guoyuan[1];Yang, Yuxiang[1];Yuan, Hongming[3]

机构：[1]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Second Mil Med Univ, Changhai Hosp, Dept Nucl Med, Shanghai 200433, Peoples R China;[3]Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

年份：2013

卷号：13

期号：10

起止页码：6953

外文期刊名：JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY

收录：;EI(收录号：20135017069555);WOS:【SCI-EXPANDED(收录号:WOS:000328704000067)】；

基金：We are grateful for the support from the National Science Foundation of China (Grant No. 20971043), the Open Project Program of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, and also grateful to Mr. LIU Xiang-Nong, Analysis and Testing Center, Yangzhou University for help in sample characterization.

语种：英文

外文关键词：Sol-Gel Method; Fe3O4@SiO2 Nanocomposites; Chain-Like; Peanuts-Like; Bio-Applications

摘要：The size-and shape-controlled Fe3O4@SiO2 nanocomposites were successfully synthesized via the sol-gel method. The results showed that the size, shape, and property of the products were directly influenced by the amount of TEOS, and the concentration of water-based magnetic fluid in the coating process. The morphology and properties of the products were characterized by TEM, SEM, X-ray powder diffraction, IR and EDS. The Fe3O4@SiO2 composites with easily-controlled size arranged from 58 to 835 nm could be synthesized by adjusting the experimental parameters. When TEOS amount is 1 mL and the concentration of magnetic fluid were 30.0 and 10.0 mg/mL respectively, chain-like and peanuts-like well-dispersed Fe3O4@SiO2 particles with clear core-shell structure were obtained. These size-and shape-controlled Fe3O4@SiO2 composites may have potential application in the field of targeted drug delivery and MRI contrast agent.