Szczegóły publikacji
Opis bibliograficzny
Studying functional properties of hydrogel and silicone-hydrogel contact lenses with PALS, MIR and Raman spectroscopy / J. Filipecki, M. SITARZ, A. Kocela, K. Kotynia, P. JELEŃ, K. Filipecka, M. Gawęda // Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy ; ISSN 1386-1425. — 2014 — vol. 131, s. 686–690. — Bibliogr. s. 690, Abstr.
Autorzy (7)
- Filipecki Jacek
- AGHSitarz Maciej
- Kocela A.
- Kotynia K.
- AGHJeleń Piotr
- Filipecka-Szymczyk Katarzyna
- AGHGawęda Magdalena
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 83516 |
|---|---|
| Data dodania do BaDAP | 2014-09-19 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.saa.2014.04.144 |
| Rok publikacji | 2014 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Spectrochimica Acta, Part A, Molecular and Biomolecular Spectroscopy |
Abstract
Determination of free volume holes of the hydrogel and silicone-hydrogel polymer contact lenses were investigated. Two types of polymer contact lenses were used as materials: the first is a hydrogel contact lenses Proclear family (Omafilcon A), while the second is a silicone-hydrogel contact lens of the family Biofinity (Comfilcon A). Positron annihilation lifetime spectroscopy PALS was used to characterize geometrical sizes and fraction of the free volume holes in the investigated samples. There is a clear difference in the free volume sizes and their fractions between silicone-hydrogel and polymer hydrogel contact lenses which in turn are connected with oxygen permeability in these lenses. Apart from that, spectroscopic (middle infrared) MIR and Raman examinations were carried out in order to demonstrate the differences of the water content in the test contact lenses. © 2014 Elsevier B.V. All rights reserved.
