A novel extracellular synthesis of monodisperse gold nanoparticles using marine alga, Sargassum wightii Greville

被引：415

作者：

Singaravelu, G. ^{[1
]}

Arockiamary, J. S.

Kumar, V. Ganesh

Govindaraju, K.

机构：

[1] Thiruvalluvar Univ, Dept Zool, Vellore 632004, Tamil Nadu, India

[2] Thiruvalluvar Univ, Dept Chem, Vellore 632004, Tamil Nadu, India

[3] Auxillium Coll, Dept Zool, Vellore 632004, Tamil Nadu, India

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 2007年 / 57卷 / 01期

关键词：

gold nanoparticles; Sargassum wightii; extracellular synthesis;

D O I：

10.1016/j.colsurfb.2007.01.010

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

The process of development of reliable and eco-friendly metallic nanoparticles is an important step in the field of nanotechnology. To achieve this use of natural sources like biological systems becomes essential. In the present, work we have investigated extracellular biosynthesis of gold nanoparticles using Sargassum wightii and have achieved rapid formation of gold nanoparticles in a short duration. The UV-vis spectrum of the aqueous medium containing gold ion showed peak at 527 nm corresponding to the plasmon absorbance of gold nanoparicles. Transmission electron microcopy (TEM) showed formation of well-dispersed gold nanoparticles in the range of 8-12 nm. X-ray diffraction (XRD) spectrum of the gold nanoparticles exhibited Braga reflections corresponding to gold nanoparticles. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：97 / 101

页数：5

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