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IJBB Vol.47 [2010] >
IJBB Vol.47(3) [June 2010] >


Title:  Preparation of gold nanoparticles from Mirabilis jalapa flowers
Authors: Vankar, Padma S
Bajpai, Dhara
Keywords: Gold nanoparticles
Mirabilis jalapa
FT-IR
UV
X-Ray Diffraction
Energy Dispersive X-ray
Transmission electron microscopy
Atomic Force Microscopy
Issue Date: Jun-2010
Publisher: CSIR
Abstract:  Biosynthesis of gold nanoparticles has emerged as an important area in nanotechnology and biotechnology due to growing need to develop environmentally benign technologies. Generally, nanoparticles are prepared by a variety of chemical methods which are not environmentally friendly. In the present study, we report a rapid and convenient method to reductively prepare gold nanoparticles from auric chloride using aqueous extract of Mirabilis jalapa flowers. The flower extract acts as a reducing agent and encapsulating cage for the gold nanoparticles. The production of gold nanoparticles has been done by the controlled reduction of the Au3+ ion to Au0. The formation of gold nanoparticles has been established by FT-IR and UV-Vis spectroscopy, as well as by TEM, XRD, EDAX and AFM. The study suggests that M. jalapa flowers can be a cheap source as a reductant for the production of gold nanoparticles.
Page(s): 157-160
ISSN: 0975-0959 (Online); 0301-1208 (Print)
Source:IJBB Vol.47(3) [June 2010]

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