Synthesis of gold nano-anisotrops using Dioscorea Bulbifera tuber extract

Ghosh, Sougata ; Patil, Sumersing ; Ahire, Mehul ; Kitture, Rohini ; Jabgunde, Amit ; Kale, Sangeeta ; Pardesi, Karishma ; Bellare, Jayesh ; Dhavale, Dilip D. ; Chopade, Balu A. (2011) Synthesis of gold nano-anisotrops using Dioscorea Bulbifera tuber extract Journal of Nanomaterials, 2011 . 354793_1-354793_8. ISSN 1687-4110

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Biosynthesis of metal nanoparticles employing plant extracts and thereby development of an environmentally benign process is an important branch of nanotechnology. Here, the synthesis of gold nanoparticles using Dioscorea bulbifera tuber extract (DBTE) as the reducing agent is reported. Field emission scanning electron microscopy (FESEM), energy-dispersive spectroscopy (EDX), X-ray diffraction (XRD), and UV-visible absorption spectroscopy confirmed the reduction of gold ions to AuNPs. The anisotropic nanoparticles consist of a mixture of gold nanotriangles, nanoprisms, nanotrapezoid, and spheres. The kinetics of particle formation was time dependent and was enhanced by the increase of temperature from 6°C to 50°C, the optimum being 50°C. The optimum concentration of chloroauric acid was found to be 1 mM. Complete reduction of the metal ions within 5 hours by DBTE highlights the development of a novel ecofriendly route of biological synthesis of gold nanoparticles. This is the first paper on synthesis of gold nanoparticles using DBTE.

Item Type:Article
Source:Copyright of this article belongs to Hindawi Publishing Corporation.
ID Code:87585
Deposited On:19 Mar 2012 12:37
Last Modified:19 May 2016 02:51

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