@article{SHARMA_ALAM_2023, title={Biogenesis of silver nanoparticles from the shoot extract of Delonix regia its characterization (UV–Vis spectroscopy and SEM) and evaluation for antimicrobial potential}, volume={15}, url={https://www.notulaebiologicae.ro/index.php/nsb/article/view/11199}, DOI={10.55779/nsb15111199}, abstractNote={<p>The current research work explores the production of silver nanoparticles using aqueous extracts of <em>Delonix regia</em> (Boj. ex Hook.) Raf. (Angiosperms; Fabaceae) shoots for the bioreduction of Ag metal and its antimicrobial activity. Fourier transform infrared spectroscopy (FTIR), Zeta potential, ultraviolet-visible spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD) have been used to evaluate the produced silver nanoparticles (AgNPs). Both antibacterial and antifungal activity were examined against bacterial and fungal pathogens, <em>viz</em>., <em>Escherichia coli</em> and <em>Bacillus subtilis</em>, and fungal strains, <em>viz</em>., <em>Fusarium oxysporum</em> and <em>Aspergillus niger</em>. The presence of silver nanoparticles was observed by the color change, <em>i.e</em>., from pale yellow to dark brown. The zeta potential observed for the produced nanoparticle is -18mv. The SEM and XRD revealed the size of synthesized AgNPs, <em>i.e</em>., 35nm and SEM size lies in the range of 40-60 nm. UV-visible absorption spectra were found at wavelength 425 nm. The synthesized nanoparticles are cost-efficient and could be an alternative procedure for the peculiar production of nanoparticles and also act as potential antimicrobial agents.</p>}, number={1}, journal={Notulae Scientia Biologicae}, author={SHARMA, Bhawana and ALAM, Afroz}, year={2023}, month={Mar.}, pages={11199} }