Biological synthesis of silver and gold nanoparticles using apiin as reducing agent
Biological synthesis of silver and gold nanoparticles using apiin as reducing agent
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DOI：
10.1016/j.colsurfb.2008.09.021
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发表时间：
2009-01-01
影响因子：
5.8
通讯作者：
Rajendiran, N.
中科院分区：
文献类型：
--
作者：
Kasthuri, J.;Veerapandian, S.;Rajendiran, N.
我们报道了一种以芹菜素为还原剂和稳定剂的生物合成各向异性金和准球形银纳米颗粒的新策略。纳米颗粒的尺寸和形状可以通过改变反应介质中金属盐与芹菜素化合物的比例来控制。采用紫外-可见-近红外光谱、透射电子显微镜（TEM）、红外光谱、X射线衍射（XRD）和热重分析（TGA）对所得纳米粒子进行了表征。通过红外光谱分析证实了纳米粒与芹菜素化合物羰基的相互作用。发现确认金和银纳米颗粒的平均尺寸的TEM照片为21和39 nm。金纳米三角的近红外吸收有望应用于癌细胞的热疗和红外吸收光学涂层。(C)2008 Elsevier B. V.保留所有权利。
We report a novel strategy for the biological synthesis of anisotropic gold and quasi-spherical silver nanoparticles by using apiin as the reducing and stabilizing agent. The size and shape of the nanoparticles can be controlled by varying the ratio of metal salts to apiin compound in the reaction medium. The resultant nanoparticles were characterized by UV-vis-NIR, transmission electron microscopy (TEM), FT-IR spectroscopy, X-ray diffraction (XRD) and thermogravimetric analysis (TGA). The interaction between nanoparticles with carbonyl group of apiin compound was confirmed by using FT-IR analysis. TEM photograph confirming the average size of the gold and silver nanoparticles were found to be at 21 and 39 nm. The NIR absorption of the gold nanotriangles is expected to be of application in hyperthermia of cancer cells and in IR-absorbing optical coatings. (C) 2008 Elsevier B.V. All rights reserved.