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

• First report on green synthesis of silver nanoparticles from the pods of Peltophorum pterocarpum.
• The proposed method is simple, rapid and eco-friendly.
• The sequence of size of silver nanoparticles: DLS > SEM ≈ XRD.
• Synthesised silver nanoparticles have potential antibacterial and anticoagulant activity.

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.

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