文献类型：期刊文献

英文题名：Preparation and Biological Applications of Graphene Oxide Functionalized Water-Based Magnetic Fluids

作者：Dai, Zuocheng[1];Huang, Yan[1];Yang, Huan[1];Yao, Pingping[1];Yang, Yuxiang[1];Ni, Chaoying[2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA

年份：2018

卷号：18

期号：1

起止页码：735

外文期刊名：JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY

收录：;EI(收录号：20175004514939);WOS:【SCI-EXPANDED(收录号:WOS:000417546800101)】；

基金：This work was supported by the National Natural Science Foundation of China (20577010, 20971043) and the Fundamental Research Funds from the Central Universities.

语种：英文

外文关键词：Magnetic Fluids; Graphene Oxide; Speed-Controlled Co-Precipitation; PEG-4000; Stability; Biological Application

摘要：Magnetic fluids (MFs) with good dispersion were prepared by speed-controlled co-precipitation method, using polyethylene glycol (PEG-4000) as dispersing agent. To functionalize the MFs with graphene oxide (GO), highly dispersed nano-magnetic particles (NMPs) were firstly prepared by low-temperature freeze-drying technique. 3-aminopropyltriethoxysilane (APTES) was then attached on the surface of NMPs to form amino functionalized NMPs. GO was finally assembled with amino functionalized NMPs, to prepare GO functionalized MFs (GO-NMPs) by electrostatic adsorption. The obtained GO-NMPs were then characterized by FTIR, XRD, TEM, SEM and VSM. Meanwhile, mice were in vivo used as animal model to study biological application of Tc-99(m) labeled GO-NMPs, suggesting that the targeted functionalized magnetic particles had higher magnetic response effect under pulsed magnetic gradient field.