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Abstract
This study represents the green synthesis of silver nanoparticles (AgNPs) using Ipomoea aquatica (Water Spinach) leaf extract, and investigate the cytotoxicity and antimicrobial activities. The Ipomoea aquatica (IA) mediated green synthesized AgNPs (IA-AgNPs) was characterized by ultraviolet–visible (UV–VIS.) spectrophotometry, Fourier transform-infrared (FT-IR) spectroscopy, atomic absorption spectrometry (AAS), X-ray deffractometry (XRD), transmission electron microscopy (TEM), and energy dispersive X-ray (EDX) spectroscopy. The results showed that the material was formed in nano-dimension with particle size in the range between 15–30 nm. The nanoparticles (NPs) were almost spherical in shape and demonstrated excellent material stability. The PC12 cell model in-vitro was used to determine the cytotoxicity of the IA-AgNPs, and for antimicrobial study, E. coli, Salmonella, and Staphylococcus sp. were employed. The cell viability results showed that the NPs did not induce any cytotoxicity until 10 ppm for 48 h of incubation, and it was further confirmed by the lactate dehydrogenase (LDH) assay. Moreover, IA-AgNPs demonstrated good antibacterial activity against three bacteria: E. coli, Salmonella, and Staphylococcus sp. Thus, this study may create an important synthetic route for the production of green-AgNPs and their safe usages, and may also be used to augment the bioactivities of the material with minimum toxicity.
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1 Department of Environmental Sciences, Jahangirnagar University, Dhaka, Bangladesh; Bangladesh National Authority for Chemical Weapons Convention, Dhaka Cantonment, Dhaka, Bangladesh
2 Materials Science Division, Atomic Energy Centre, Dhaka, Bangladesh
3 Graduate School of Environmental Science, Hokkaido University, Sapporo, Japan
4 Institute of National Analytical Research and Service (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
5 Department of Environmental Sciences, Jahangirnagar University, Dhaka, Bangladesh