Thematic area of your work (one of the thematic areas of International research and practice conference "Nanotechnology and nanomaterials")

Sustainable-green synthesis of silver nanoparticles using waste extract obtained by deep eutectic solvent. Characterization, assessment of their electrochemical and antioxidant activities
Vorobyova V.I.1, Vasyliev, G. S.1, Skiba M.I.2, Goncharova Anna1
1 National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”. Prosp. Peremohy-03056, 37, Kyiv, Ukraine.
E-mail: vorobyovavika1988@gmail.com

Nowadays, environmentally friendly methods such as green synthesis can be used, through the use of agri-food waste. The use of these wastes is a more sustainable method, because it reduces the environmental pollution, at the same time that silver nanoparticles are obtained. The current research is aimed at developing eco-friendly method for the synthesis of AgNPs using pomace extract obtained by ionic liquid and evaluation of the antibacterial, antiradical activity.
The analyses by TEM showed that the as-synthesized silver nanoparticles were uniform and spherical particles with an average diameter of 11.67 ± 14.7 nm and confirmed by SEM. The electron diffraction and TEM analyses showed the characteristic crystallinity of silver nanoparticles. 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.