Nanocomposites and nanomaterials

Synthesis and characterization of silver nanoparticles using tomato pomace extract obtained by deep eutectic solvent
Vorobyova V.I. 1, Vasyliev, G. S. 1, Kotyk M.M. 1, Kyrii S.O.1, Skiba M.I.2
1 National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”. Prosp. Peremohy 37, Kyiv 03056, Ukraine.
2 Ukrainian State University of Chemical Technology, Gagarin Ave. 8, Dnipro 49005, Ukraine.
E-mail: g.vasyliev@kpi.ua
Over the last years, numerous studies were focused on developing a variety of methods of Ag nanoparticles (Ag-NPs) green synthesis. The results showed that in order due to obtain certain properties of the nanoparticles, such as biocompatibility and antiradical activity, with their further successful application in specific industries (pharmaceutical) the most promising synthesis method requires integrated use phytochemical methods of synthesis using the latest and environmentally friendly types of solvents as extractant of organic compounds from raw materials [1-2].
The current research is aimed at developing eco-friendly method for the synthesis of AgNPs using tomato pomace extract obtained by ionic liquid and evaluation of the antibacterial, antiradical activity.
The AgNPs were characterized by zeta-potential measurements and UV–Vis spectroscopy (absorption peak at 432 nm), scanning electron microscopy. The antimicrobial activity of AgNPs was tested against Escherichia coli using the agar diffusion method. DPPH and ABTS radicals scavenging activity were used to characterize antioxidant activity of the AgNPs.

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2.	A. Safavi, M. Shekarnoush, M. Ajamian, & A. R. Zolghadr, High-yield synthesis, characterization, self-assembly of extremely thin gold nanosheets in sugar based deep eutectic solvents and their high electrocatalytic activity. Journal of Molecular Liquids. Journal of Molecular Liquids. -2019. -279. 208–223.