Antibacterial and anticoagulant activity of silver nanoparticles synthesised from a novel source-pods of Peltophorum pterocarpum

We report the ability of a novel source - the aqueous extract of pods of Peltophorum pterocarpum for the synthesis of silver nanoparticles (SNPs). SEM analysis exposes the spherical shape of the nanoparticles and UV-vis spectra show the surface plasmon resonance peak at 407 nm. XRD analysis showed the crystalline nature of SNPs. FT-IR spectra show the presence of biomolecules which play a role of reduction of AgNO3 and capping the formed SNPs. A negative zeta potential of-15.8 mV endorses the stability and dispersion of SNPs. The antibacterial activity of the SNPs was demonstrated against Escherichia coli and anticoagulant activity was also revealed. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.