Introduction: Green synthesis of nanoparticles has been gaining a lot of attraction
owing to its property to synthesize stable nanoparticles by a simple and convenient method.
Materials and Methods: The present study demonstrates the use of Dicoma tomentosa bark
extract in the synthesis of silver nanoparticles (DT-AgNPs). The formation of DT-AgNPs
was indicated by change of color from light brown yellow to dark brown and was confirmed
by UV-vis spectroscopy.
Result: The surface plasmon resonance spectra were observed at 430-480nm of AgNPs. FTIR
spectra suggested that the DT-AgNPs were obtained by the action of phenolic compounds
such as alkaloids, flavonoids and aromatic amines in the plant extracts.
Conclusion: Several parameters (reaction time, AgNO3 concentration, extract concentration
and temperature) responsible for DT-AgNPs synthesis were optimized. Further, the antibacterial
potential of synthesized DT-AgNPs tested against Pseudomonas aeruginosa revealed remarkable
zone of inhibition.