Proceedings Article | 30 September 2020
KEYWORDS: Silver, Nanocomposites, Nanoparticles, Chemistry, Surface plasmons, Composites, Spectroscopy, Microorganisms, Bacteria, Nanomaterials
SILVER NANOCOMPOSITES: SYNTHESIS, PROPERTIES AND APPLICATION
Railean-Plugaru Viorica1*, Pomastowski Pawel 1, Buszewski Boguslaw1,2
1Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University in Torun, Wileńska 4, 87-100 Torun, Poland
2Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100 Torun, Poland
*Corresponding author
Dr. Viorica Railean
E-mail address: viorica.railean@umk.pl
The development of biological method seems to be as simple and viable alternative to chemical and physical one. Currently a lot of research including even our works refers to silver nanoparticles because of their many advantages i.e. besides of antibacterial effect against a broad range of microorganisms (bacteria, fungus, parasites), nanomaterials have spurred numerous applications in electronics, nanomedicine, biomaterials, energy, and food due to their unique properties (e.g high surface plasmon resonance).
Furthermore, analyzing the nowadays increasing ecological problems, although new applications appear on the horizon, the future will be more focused on the idea of sustainable synthesis development of silver nanoparticles. Certainly, searching for new safe source for the silver composites synthesis, taking into consideration the present needs, without compromising the future generations, will be of the increased interest. One of this solution is using of LAB strain from milk and products resulting from the processing of milk (e.g whey).
Therefore, the purpose of this study firstly it was to design safe source for the silver nanocomposites synthesis using bacterial strain isolated from the whey and on the another hand to carry out a detailed analysis of the physicochemical properties of the synthesized silver nanocomposites, allowing to collect the maximum amount of information on the bioparticles composites and influence of them and antibiotic systems to the antimicrobial and antioxidant effect. In this fact, a series of spectroscopy, microscopy methods and spectrometric techniques were applied. Obtained result give the potential for application of biologically synthetized AgNPs for nanostructure-assisted laser desorption/ionization (NALDI) due to the surface plasmon resonance (SPR) properties of synthetized AgNCs. Metallic and nanostructured nanoparticles are chare donor for themselves and molecules bonded on their surface. Moreover, the obtained silver nanocomposites have been found to present both a high antimicrobial effect against antimicrobial pathogens as well as a high antioxidant effect.
Acknowledgments: This work was supported by the „Advanced biocomposites for tomorrow's economy BIOG-NET” project that is carried out within the TEAM-NET program of the Foundation for Polish Science co-financed by the European Union under the European Regional Development Fund.
