在DNA网络表面一步合成银纳米颗粒、纳米棒和纳米线。

One-step synthesis of silver nanoparticles, nanorods, and nanowires on the surface of DNA network.

作者信息

Wei Gang, Zhou Hualan, Liu Zhiguo, Song Yonghai, Wang Li, Sun Lanlan, Li Zhuang

机构信息

State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Graduate school of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun 130022, China.

出版信息

J Phys Chem B. 2005 May 12;109(18):8738-43. doi: 10.1021/jp044314a.

DOI:10.1021/jp044314a

PMID:16852035

Abstract

Here, we describe a one-step synthesis of silver nanoparticles, nanorods, and nanowires on DNA network surface in the absence of surfactant. Silver ions were first adsorbed onto the DNA network and then reduced in sodium borohydride solution. Silver nanoparticles, nanorods, and nanowires were formed by controlling the size of pores of the DNA network. The diameter of the silver nanoparticles and the aspect ratio of the silver nanorods and nanowires can be controlled by adjusting the DNA concentration and reduction time.

摘要

在此，我们描述了在无表面活性剂的情况下，在DNA网络表面一步合成银纳米颗粒、纳米棒和纳米线的方法。银离子首先吸附到DNA网络上，然后在硼氢化钠溶液中被还原。通过控制DNA网络的孔径大小形成银纳米颗粒、纳米棒和纳米线。通过调节DNA浓度和还原时间，可以控制银纳米颗粒的直径以及银纳米棒和纳米线的长径比。