Green Fabrication of Silver Nanoparticles by Gum Tragacanth (Astragalus gummifer): A Dual Functional Reductant and Stabilizer

A simple and ecofriendly procedure have been devised for the green synthesis of silver nanoparticles using the aqueous extract of gum tragacanth (Astragalus gummifer), a renewable, nontoxic natural phyto-exudate. The water soluble components in the gum act as reductants and stabilizers. The generate...

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Main Authors: Aruna Jyothi Kora, Jayaraman Arunachalam
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2012/869765
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spelling doaj-7115bc5e9da84f168253220435f8c21a2020-11-24T23:06:23ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292012-01-01201210.1155/2012/869765869765Green Fabrication of Silver Nanoparticles by Gum Tragacanth (Astragalus gummifer): A Dual Functional Reductant and StabilizerAruna Jyothi Kora0Jayaraman Arunachalam1National Centre for Compositional Characterisation of Materials (NCCCM), Bhabha Atomic Research Centre, ECIL (PO), Hyderabad 500 062, IndiaNational Centre for Compositional Characterisation of Materials (NCCCM), Bhabha Atomic Research Centre, ECIL (PO), Hyderabad 500 062, IndiaA simple and ecofriendly procedure have been devised for the green synthesis of silver nanoparticles using the aqueous extract of gum tragacanth (Astragalus gummifer), a renewable, nontoxic natural phyto-exudate. The water soluble components in the gum act as reductants and stabilizers. The generated nanoparticles were analyzed using UV-visible spectroscopy, transmission electron microscopy, X-ray diffraction, Fourier transform-infrared spectroscopy, and Raman spectroscopy. The role of gum concentration and reaction time on the synthesis of nanoparticles was studied. By regulating the reaction conditions, spherical nanoparticles of 13.1±1.0 nm size were produced. Also, the possible functional groups involved in reduction and capping of nanoparticles has been elucidated. The antibacterial activity of the fabricated nanoparticles was tested on model Gram-negative and Gram-positive bacterial strains with well-diffusion method. These nanoparticles exhibited considerable antibacterial activity on both the Gram classes of bacteria, implying their potential biomedical applications.http://dx.doi.org/10.1155/2012/869765
collection DOAJ
language English
format Article
sources DOAJ
author Aruna Jyothi Kora
Jayaraman Arunachalam
spellingShingle Aruna Jyothi Kora
Jayaraman Arunachalam
Green Fabrication of Silver Nanoparticles by Gum Tragacanth (Astragalus gummifer): A Dual Functional Reductant and Stabilizer
Journal of Nanomaterials
author_facet Aruna Jyothi Kora
Jayaraman Arunachalam
author_sort Aruna Jyothi Kora
title Green Fabrication of Silver Nanoparticles by Gum Tragacanth (Astragalus gummifer): A Dual Functional Reductant and Stabilizer
title_short Green Fabrication of Silver Nanoparticles by Gum Tragacanth (Astragalus gummifer): A Dual Functional Reductant and Stabilizer
title_full Green Fabrication of Silver Nanoparticles by Gum Tragacanth (Astragalus gummifer): A Dual Functional Reductant and Stabilizer
title_fullStr Green Fabrication of Silver Nanoparticles by Gum Tragacanth (Astragalus gummifer): A Dual Functional Reductant and Stabilizer
title_full_unstemmed Green Fabrication of Silver Nanoparticles by Gum Tragacanth (Astragalus gummifer): A Dual Functional Reductant and Stabilizer
title_sort green fabrication of silver nanoparticles by gum tragacanth (astragalus gummifer): a dual functional reductant and stabilizer
publisher Hindawi Limited
series Journal of Nanomaterials
issn 1687-4110
1687-4129
publishDate 2012-01-01
description A simple and ecofriendly procedure have been devised for the green synthesis of silver nanoparticles using the aqueous extract of gum tragacanth (Astragalus gummifer), a renewable, nontoxic natural phyto-exudate. The water soluble components in the gum act as reductants and stabilizers. The generated nanoparticles were analyzed using UV-visible spectroscopy, transmission electron microscopy, X-ray diffraction, Fourier transform-infrared spectroscopy, and Raman spectroscopy. The role of gum concentration and reaction time on the synthesis of nanoparticles was studied. By regulating the reaction conditions, spherical nanoparticles of 13.1±1.0 nm size were produced. Also, the possible functional groups involved in reduction and capping of nanoparticles has been elucidated. The antibacterial activity of the fabricated nanoparticles was tested on model Gram-negative and Gram-positive bacterial strains with well-diffusion method. These nanoparticles exhibited considerable antibacterial activity on both the Gram classes of bacteria, implying their potential biomedical applications.
url http://dx.doi.org/10.1155/2012/869765
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AT jayaramanarunachalam greenfabricationofsilvernanoparticlesbygumtragacanthastragalusgummiferadualfunctionalreductantandstabilizer
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