Optomechanical processing of silver colloids: new generation of nanoparticle-polymer composites with bactericidal effect

0536798 - ÚMCH 2022 RIV CH eng J - Journal Article
Siegel, J. - Kaimlová, M. - Vyhnálková, B. - Trelin, A. - Lyutakov, O. - Slepička, P. - Švorčík, V. - Veselý, M. - Vokatá, B. - Malinský, P. - Šlouf, Miroslav - Hasal, P. - Hubáček, Tomáš
Optomechanical processing of silver colloids: new generation of nanoparticle-polymer composites with bactericidal effect.
International Journal of Molecular Sciences. Roč. 22, č. 1 (2021), č. článku 312. E-ISSN 1422-0067
Institutional support: RVO:61389013 ; RVO:60077344
Keywords : silver nanoparticles * polymer * excimer laser
OECD category: Polymer science; Materials engineering (BC-A)
Impact factor: 6.208, year: 2021
Method of publishing: Open access
https://www.mdpi.com/1422-0067/22/1/312

The properties of materials at the nanoscale open up new methodologies for engineering prospective materials usable in high-end applications. The preparation of composite materials with a high content of an active component on their surface is one of the current challenges of materials engineering. This concept significantly increases the efficiency of heterogeneous processes moderated by the active component, typically in biological applications, catalysis, or drug delivery. Here we introduce a general approach, based on laser-induced optomechanical processing of silver colloids, for the preparation of polymer surfaces highly enriched with silver nanoparticles (AgNPs). As a result, the AgNPs are firmly immobilized in a thin surface layer without the use of any other chemical mediators. We have shown that our approach is applicable to a broad spectrum of polymer foils, regardless of whether they absorb laser light or not. However, if the laser radiation is absorbed, it is possible to transform smooth surface morphology of the polymer into a roughened one with a higher specific surface area. Analyses of the release of silver from the polymer surface together with antibacterial tests suggested that these materials could be suitable candidates in the fight against nosocomial infections and could inhibit the formation of biofilms with a long-term effect.
Permanent Link: http://hdl.handle.net/11104/0315154