Geeta Arya, Ashish Kumar Malav, Nidhi Gupta, Ajeet Kumar and Surendra Nimesh* Pages 240 - 247 ( 8 )
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.
Silver nanoparticles, Dicoma tomentosa, biosynthesis, optimization, UV-vis spectroscopy, FTIR, antimicrobial activity.
Department of Biotechnology, Central University of Rajasthan, Ajmer, 305 817, Department of Biotechnology, Central University of Rajasthan, Ajmer, 305 817, Department of Biotechnology, The IIS University, Gurukul Marg, SFS, Mansarovar, Jaipur 302020 Rajasthan, Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699-5814, Department of Biotechnology, Central University of Rajasthan, Ajmer, 305 817