Počet záznamů: 1
Decoration of ultramicrotome-cut polymers with silver nanoparticles: effect of post-deposition laser treatment
- 1.0565582 - ÚMCH 2023 RIV CH eng J - Článek v odborném periodiku
Kaimlová, M. - Pryjmaková, J. - Šlouf, Miroslav - Lyutakov, O. - Ceccio, Giovanni - Vacík, Jiří - Siegel, J.
Decoration of ultramicrotome-cut polymers with silver nanoparticles: effect of post-deposition laser treatment.
Materials. Roč. 15, č. 24 (2022), č. článku 8950. ISSN 1996-1944. E-ISSN 1996-1944
Grant CEP: GA ČR GA22-17346S
Institucionální podpora: RVO:61389013 ; RVO:61389005
Klíčová slova: optomechanical manipulation * plasmon resonance * silver nanoparticles
Obor OECD: Polymer science; Nuclear physics (UJF-V)
Impakt faktor: 3.4, rok: 2022
Způsob publikování: Open access
https://www.mdpi.com/1996-1944/15/24/8950
Today, ultramicrotome cutting is a practical tool, which is frequently applied in the preparation of thin polymeric films. One of the advantages of such a technique is the decrease in surface roughness, which enables an effective recording of further morphological changes of polymeric surfaces during their processing. In view of this, we report on ultramicrotome-cut polymers (PET, PEEK) modified by a KrF excimer laser with simultaneous decoration by AgNPs. The samples were immersed into AgNP colloid, in which they were exposed to polarized laser light. As a result, both polymers changed their surface morphology while simultaneously being decorated with AgNPs. KrF laser irradiation of the samples resulted in the formation of ripple-like structures on the surface of PET and worm-like ones in the case of PEEK. Both polymers were homogeneously covered by AgNPs. The selected area of the samples was then irradiated by a violet semiconductor laser from the confocal laser scanning microscope with direct control of the irradiated area. Various techniques, such as AFM, FEGSEM, and CLSM were used to visualize the irradiated area. After irradiation, the reverse pyramid was formed for both types of polymers. PET samples exhibited thicker transparent reverse pyramids, whereas PEEK samples showed thinner brownish ones. We believe that his technique can be effectively used for direct polymer writing or the preparation of stimuli-responsive nanoporous membranes.
Trvalý link: https://hdl.handle.net/11104/0338063
Počet záznamů: 1