Počet záznamů: 1
Laser-assisted immobilization of colloid silver nanoparticles on polyethyleneterephthalate
- 1. 0480080 - BC-A 2018 RIV NL eng J - Článek v odborném periodiku
Siegel, J. - Lyutakov, O. - Polívková, M. - Staszek, M. - Hubáček, Tomáš - Švorčík, V.
Laser-assisted immobilization of colloid silver nanoparticles on polyethyleneterephthalate.
Applied Surface Science. Roč. 420, OCT (2017), s. 661-668. ISSN 0169-4332
Grant CEP: GA MŠk LM2015075
Institucionální podpora: RVO:60077344
Klíčová slova: silver nanoparticles * polyethyleneterephthalate * excimer laser * immobilization
Kód oboru RIV: JJ - Ostatní materiály
Obor OECD: Materials engineering
Impakt faktor: 4.439, rok: 2017
Immobilization of nanoobjects on the surface of underlying material belongs to current issues of material science. Such altered materials exhibits completely exceptional properties exploitable in a broad spectrum of industrially important applications ranging from catalysts up to health-care industry. Here we present unique approach for immobilization of electrochemically synthesized silver nanoparticles on polyethyleneterephthalate (PET) foil whose essence lies in physical incorporation of particles into thin polymer surface layer induced by polarized excimer laser light. Changes in chemical composition and surface structure of polymer after particle immobilization were recorded by wide range of analytical techniques such as ARXPS, EDX, RBS, AAS, Raman, ICP-MS, DLS, UV-vis, SEM, TEM, and AFM. Thorough analysis of both nanoparticles entering the immobilization step as well as modified PET surface allowed revealing the mechanism of immobilization process itself. Silver nanoparticles were physically embedded into a thin surface layer of polymer reaching several nanometers beneath the surface rather than chemically bonded to PET macromolecules. Laser-implanted nanoparticles open up new possibilities especially in the development of the next generation cell-conform antimicrobial coatings of polymeric materials, namely due to the considerable immobilization strength which is strong enough to prevent particle release into the surrounding environment.
Trvalý link: http://hdl.handle.net/11104/0275989