Open AccessGreen Synthesis of Silver Nanoparticles and Their Antibacterial Activity
Author(s) -
Ľudmila Balážová,
Anna Čižmárová,
Matěj Baláž,
Nina Daneu,
Aneta Salayová,
Zdenka Bedlovičová,
Ľudmila Tkáčiková
Publication year - 2022
Publication title -
chemické listy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.137
H-Index - 28
eISSN - 1213-7103
pISSN - 0009-2770
DOI - 10.54779/chl20220135
Subject(s) - antibacterial activity , nuclear chemistry , chemistry , silver nanoparticle , agar diffusion test , sambucus nigra , escherichia coli , nanoparticle , agar , bacteria , nanotechnology , materials science , biochemistry , biology , genetics , gene , lectin
Silver nanoparticles (Ag NPs) could be prepared by effective and simple biosynthesis by using plant extracts. Water extracts from Thymus serpyllum L., Thymus vulgaris L., and Sambucus nigra L. were used for a green synthesis of Ag NPs. Progress of the syntheses, the structure of Ag NPs and their antibacterial actiivity were followed by UV-Vis spectroscopy, TEM analysis and agar well diffusion method. UV-Vis analysis showed that the reactions performed with various plants extracts need different temperatures (60–90 °C) to synthesize Ag NPs. The NPs prepared were approx. 30 nm in size, but Ag NPs smaller than 10 nm were detected, too. Pure plant extracts without nanoparticles had no antibacterial activity. Of the Ag NPs-containing samples, only those prepared by using extract from Sambucus nigra L. showed antibacterial activity against Escherichia coli and Staphylococcus aureus. Green synthesis is a promising way to prepare NPs with biological activities.