Document Detail


Preparation of gold nanoparticles from Mirabilis jalapa flowers.
MedLine Citation:
PMID:  20653286     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Padma S Vankar; Dhara Bajpai
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Indian journal of biochemistry & biophysics     Volume:  47     ISSN:  0301-1208     ISO Abbreviation:  Indian J. Biochem. Biophys.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-07-26     Completed Date:  2010-08-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0310774     Medline TA:  Indian J Biochem Biophys     Country:  India    
Other Details:
Languages:  eng     Pagination:  157-60     Citation Subset:  IM    
Affiliation:
Facility for Ecological and Analytical Testing (FEAT), Indian Institute of Technology, Kanpur 208 016, India. psv@iitk.ac.in
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MeSH Terms
Descriptor/Qualifier:
Flowers / metabolism
Gold / chemistry
Metal Nanoparticles / chemistry*,  ultrastructure
Microscopy, Atomic Force
Microscopy, Electron, Transmission
Mirabilis / metabolism*
Oxidation-Reduction
Chemical
Reg. No./Substance:
7440-57-5/Gold

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