Facile Gold-coated Maghemite Nanoparticles Fabrication

摘要：

The maghemite (γ-Fe2O3) nanoparticles were obtainedvia high temperature pyrolysis with the precursor of magnetitethat was synthesized via chemical coprecipitation. Then the (3-aminopropyl)triethoxysilane (APTES) was used for the surfacefunctionalization ofγ-Fe2O3 nanoparticles. Finally the gold-coatedmaghemite (γ-Fe2O3/Au) nanoparticles are prepared viasonochemical synthesis of a solution mixture of hydrochloroauricacid (HAuCl4) and APTES-coatedγ-Fe2O3 nanoparticles withfurther drop-addition of sodium citrate. Theγ-Fe2O3/Aunanoparticles were characterized by X-ray powder diffractionelectron microscopy (TEM) and superconducting quantumninteference devices (SQUID). Theγ-Fe2O3/Au nanoparticles withdouble properties of magnetism and colloidal gold may haveintensive application in immunology, biochemistry, biomedicaland molecular biology.

作者: Quanguo He Jingke Huang Rong Hu Lei Zeng

作者单位: Green Packaging and Biological Nanotechnology Laboratory,Hunan University of Technology, Zhuzhou 412007, China

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-5

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）