Preferential end functionalization of Au nanorods through electrostatic interactions.
Preferential end functionalization of Au nanorods through electrostatic interactions.
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DOI：
10.1021/ja071536o
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发表时间：
2007-05
影响因子：
15
通讯作者：
P. Pramod;S. Joseph;K. G. Thomas
中科院分区：
文献类型：
--
作者：
P. Pramod;S. Joseph;K. G. Thomas
报道了一种利用静电吸引作用使Au纳米棒与纳米颗粒优先末端官能化的新方法。Au纳米棒边缘的增强电势优先吸引带正电荷的Au纳米颗粒，导致它们的选择性结合。位点特异性结合导致Au纳米棒的纵向等离子体激元带的自发红移，这取决于纳米颗粒的尺寸。
A novel methodology for the preferential end functionalization of Au nanorods with nanoparticles is reported by exploiting the electrostatic attractive interactions. The enhanced potential at the edges of Au nanorods preferentially attracts the positively charged Au nanoparticles, leading to their selective binding. Site-specific binding results in a spontaneous bathochromic shift in the longitudinal plasmon band of Au nanorods which is dependent on the size of the nanoparticles.