Vol. 12, Issue 4, Part A (2025)

Author(s): Taibah Memon, Ranjitsing Bayas, Saleemuddin Panwale and Laxmikant Shinde

Abstract: In this study, the larvicidal potential of microbially generated silver nanoparticles (AgNPs) derived from <em>Aspergillus</em> species is examined. AgNPs were subjected to a solution of 1 mM silver nitrate (AgNO3). To verify the synthesis of AgNPs, visual inspection was combined with the use of transmission electron microscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy, and UV-Vis spectroscopy. TEM and XRD studies were used to establish the average size of the AgNPs. Significant larvicidal action was demonstrated by biosynthesized AgNPs against vector mosquitoes. Silver nanoparticles were effectively synthesized using <em>Aspergillus </em>fungal extract. The produced silver nanoparticles were characterized using FTIR, XRD, TEM, and UV-Vis spectra. The greatest absorption peak in the UV spectrum was located at 420 nm. X-ray diffraction analysis verified that the produced AgNPs were crystalline. The average size was 7-12 nm, according to TEM analysis. The LC50 and LC90 values obtained were 0.173 mg/L and 10.290 mg/L respectively, which concludes that the synthesized silver nanoparticles can be used as a potential larvicide for vector mosquitoes.

DOI: 10.22271/23487941.2025.v12.i4a.851