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Int J Mol Sci. 2013 Mar 1;14(3):4969-81. doi: 10.3390/ijms14034969.

Development and antibacterial activity of cashew gum-based silver nanoparticles.

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  • 1Biotec-Biodiversity and Biotechnology Research Center, Federal University of Piauí, Parnaíba, PI 64202020, Brazil.


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.

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