SYNTHESIS AND CHARACTERIZATION OF GOLD-COATED IRON OXIDE NANOPARTICLES
In this study, we report the chemical synthesis and functionalization of gold-coated iron oxide nanoparticles. Chemical co-precipitation method was used to prepare Fe3O4 firstly, and following by a heating procedure at 380℃ for 2 hours to form γFe2O3, γ-Fe2O3 @ Au composite with size of 35. 9 ran was synthetized by means of 3-mercaptopropyltriethoxysilane (MPTES) as a medium. TEM, FT-IR, UV and VSM characterization analysis all showed that Au was coated on the surface of γ-Fe2O3 successfully, the obtained γ-Fe2O3@Au composite nanoparticles are superparamagnetic. As an ideal carrier material, γ-Fe2O3@Au composite nanoparticles have very low background, can be magnetic separation and have great potential application prospects.
Gold-coated iron oxide nanoparticles γ-FezOb Au MPTES
Liu Hongna Li Song Liu Lishang Jia Yingying Mou Xianbo He Nongyue
State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering.Southea Key Laboratory of Green Packaging and Application of Biological Nanotechnology of Hunan Province,Hun State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering.Southea
国际会议
重庆
英文
136-137
2011-10-28（万方平台首次上网日期，不代表论文的发表时间）