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Nanoscale Observation of Dehydration Process in PHEMA Hydrogel Structure

Nanoscale Observation of Dehydration Process in PHEMA Hydrogel Structure

Authors :
Kordian Chamerski
Witold Korzekwa
Jacek Filipecki
Olha Shpotyuk
Marcin Stopa
Piotr Jeleń
Maciej Sitarz
Source :
Nanoscale Research Letters, Vol 12, Iss 1, Pp 1-9 (2017)
Publication Year :
2017
Publisher :
SpringerOpen, 2017.

Abstract

Abstract One of the most important field of interest in respect to hydrogel materials is their capability to water storage. The problem mentioned above plays an important role regarding to diffusion of fluid media containing nanoparticles, what is very useful in biomedical applications, such as artificial polymeric implants, drug delivery systems or tissue engineering. In presented work, dehydration process in hydrogels used in ophthalmology as intraocular lenses was observed. Before measurements studied materials were immersed in deionized water and saline solution to obtain equilibrium swelling state. Studies of the dehydration process were carried out by use of gravimetric analysis, Fourier-Transform Infrared and Positron Annihilation Lifetime Spectroscopy. Obtained results revealed changes in hydrogen bonding structure and free volume holes induced by saline solution ingredients.

Details

Language :
English
ISSN :
19317573 and 1556276X
Volume :
12
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Nanoscale Research Letters
Publication Type :
Academic Journal
Accession number :
edsdoj.f22cdbf4146c4165aa2f7af22ebf6d0c
Document Type :
article
Full Text :
https://doi.org/10.1186/s11671-017-2055-3