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Int. J. Mol. Sci. 2013, 14(3), 4969-4981; doi:10.3390/ijms14034969
Article

Development and Antibacterial Activity of Cashew Gum-Based Silver Nanoparticles

1,2
, 1,3
, 4,5
, 5
, 1
, 6
, 1
, 7
 and 1,2,*
1 Biotec—Biodiversity and Biotechnology Research Center, Federal University of Piauí, Parnaíba, PI 64202020, Brazil 2 Medical Plants Research Center, Federal University of Piauí, Teresina, PI 64049550, Brazil 3 Federal Institute of Education, Science and Technology of Piauí, Parnaíba, PI 64210260, Brazil 4 Laboratory of Forensic Ridgeology, Institute of Civil Identification of Police, II/PCDF, 70610200 DF, Brazil 5 Laboratory of Cellular Immunology, School of Medicine, University of Brasília, Brasília, DF 70910900, Brazil 6 Laboratory of Parasitology, Butantan Institute, 05504900, São Paulo, SP, Brazil 7 Department of Veterinary Morphophysiology, Federal University of Piauí, Teresina, PI 64049550, Brazil
* Author to whom correspondence should be addressed.
Received: 26 November 2012 / Revised: 11 January 2013 / Accepted: 6 February 2013 / Published: 1 March 2013
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Abstract

The present study describes the development of a green synthesis of silver nanoparticles reduced and stabilized by exuded gum from Anacardium occidentale L. and evaluates in vitro their antibacterial and cytotoxic activities. Characterization of cashew gum-based silver nanoparticles (AgNPs) was carried out based on UV–Vis spectroscopy, transmission electron microscopy and dynamic light scattering analysis which revealed that the synthesized silver nanoparticles were spherical in shape, measuring about 4 nm in size with a uniform dispersal. AgNPs presented antibacterial activity, especially against Gram-negative bacteria, in concentrations where no significant cytotoxicity was observed.
Keywords: silver nanoparticles; cashew gum; antibacterial activity; cytotoxicity silver nanoparticles; cashew gum; antibacterial activity; cytotoxicity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Quelemes, P.V.; Araruna, F.B.; de Faria, B.E.F.; Kuckelhaus, S.A.S.; da Silva, D.A.; Mendonça, R.Z.; Eiras, C.; dos S. Soares, M.J.; Leite, J.R.S.A. Development and Antibacterial Activity of Cashew Gum-Based Silver Nanoparticles. Int. J. Mol. Sci. 2013, 14, 4969-4981.

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