acta satech Journal of the Life & Physical Sciences Babcock

One-pot Biofabrication of silver nanoparticles from Almond leaves and larvicidal properties
1*Aina, D.A., 1,3Owolo, O., 1Adeoye-Isijola, M., 2Aina, O. F., 3Omeiza Favour , 4Adetayo, O.M. 5 Akindele, S.T., and 6Adewumi, G.A.
1 Department of Microbiology, Babcock University, Ilishan-Remo, Ogun State, Nigeria 2 Department of Maternal and Child Health, Babcock University, Ilishan-Remo, Ogun State, Nigeria 3 Department of Pharmaceutical Microbiology, University of Ibadan, Ibadan, Oyo State, Nigeria 4 Department of Biochemistry,Benjamen Carson (Snr) School of Basic Medical Sciences, College of Health and Medical Sciences, Babcock University, Ilishan-Remo, Ogun State, Nigeria 5 Department of Science Laboratory Technology,Abraham Adesanya Polytechnic, Ijebu-Igbo, Ogun State 6 Department of Basic Sciences, Babcock University, , Ilishan-Remo, Ogun State, Nigeria
September, 2021

ABSTRACT
This work reports the synthesis of silver nanoparticles (AgNPs) using the leaf extract of Almond plant. Larvicidal activities of the biosynthesized AgNPs were evaluated against the fourth instar larvae of mosquito Aedes aegypti. The biosynthesised AgNPs were characterised using UV-Visible, Fourier Transmission Infrared Spectroscope (FTIR), Energy Dispersive X-ray Spectroscope (EDX) and Field Emission Scanning Electron Microscope (FESEM). The absorption spectrum of the synthesized AgNPs showed a maximum spectrum of 430 nm while FTIR analysis showed different functional groups present on the surface of the AgNPs with broad peak between 3000 and 3800 cm−1. The FESEM showed a large number of spherically shaped nanoparticles with sizes ranging from 8.34 to 78.96 nm. The 50% (LC50) lethal concentration of the nanoparticles after 12 h was 13.54 µg/ml. This study showed that almond leaf can be used for synthesis of AgNPs thus adding to the available drugs that could be used in combating multidrug resistant pathogens.
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