制备了Fe3O4@Au纳米粒子,再通过两步法制备了全-6-硫代-β-环糊精,并用自组装法将β-环糊精修饰在纳米粒子表面,获得了环糊精功能化的Fe3O4@Au纳米粒子(Fe3O4@Au-β-CD).实验发现,外界磁场作用下,复合纳米粒子具有快速响应性能;Fe3O4@Au-β-CD的紫外可见光谱中出现了Au特征吸收峰;透射电镜显示该粒子形貌呈球形,粒径在15.5nm左右;X射线光电子能谱中表明β-CD已修饰到纳米粒子表面;通过分别对比修饰前后Au、S的单谱,可知是β-CD通过Au-S键修饰到Fe3O4@Au表面;Fe3O4@Au-β-CD的红外光谱中出现了β-CD的特征峰,而且巯基吸收峰消失,确证了β-CD修饰到粒子表面;热重分析表明粒子表面β-CD的含量约为26.4％.
参考文献
| [1] | Yu Liu;Ying-Wei Yang;Yong Chen .Thio[2-(benzoylamino)ethylamino]-β-CD fragment modified gold nanoparticles as recycling extractors for [60]fullerene[J].Chemical communications,2005(33):4208-4210. |
| [2] | Wang LY;Luo J;Maye MM;Fan Q;Qiang RD;Engelhard MH;Wang CM;Lin YH;Zhong CJ .Iron oxide-gold core-shell nanoparticles and thin film assembly[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2005(18):1821-1832. |
| [3] | Zhu, F.-X.;Wang, W.;Li, H.-X. .Water-medium and solvent-free organic reactions over a bifunctional catalyst with Au nanoparticles covalently bonded to HS/SO_3H functionalized periodic mesoporous organosilica[J].Journal of the American Chemical Society,2011(30):11632-11640. |
| [4] | Luo CH;Zuo F;Zheng ZH;Cheng X;Ding XB;Peng YX .Tunable smart surface of gold nanoparticles achieved by light-controlled molecular recognition effection[J].Macromolecular rapid communications: Publishing the newsletters of the European Polymer Federation,2008(2):149-154. |
| [5] | Ma XC;Xu F;Wang X;Du Y;Chen LY;Zhang ZD .The U-shaped Fe(1-x)S micro-slots: growth, characterization, and magnetic property[J].Journal of Crystal Growth,2005(1/4):314-320. |
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