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Publikācija: Wettability of the PMMA Surface Caused by Its Polarization due to UV Radiation

Publication Type Full-text conference paper published in conference proceedings indexed in SCOPUS or WOS database
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Wettability of the PMMA Surface Caused by Its Polarization due to UV Radiation
Field of research 2. Engineering and technology
Sub-field of research 2.5 Materials engineering
Authors Bruno Andersons
Jurijs Dehtjars
Alīna Grīva
Linda Lancere
Errj Sansonetti
Keywords poly methyl methacrylate; biocompatibility; surface free energy; UV radiation
Abstract Wettability of the poly methyl methacrylate (PMMA) surface defines its biocompatibility being essential factor for biomedical applications. The processed surface degrades in time therefore the prostheses/lens should be repaired to keep the patient at a high life quality level. However the most common methods can be considered as sophisticated (plasma treatment, laser treatment, etc.). The research presents novel result on the PMMA surface wettability engineering by means of non-ionizing ultraviolet radiation (200-400nm). Results (electron work function (), photoelectron emission spectra, optical absorption) show alteration from hydrophobic to hydrophilic surface behaviour. Both the surface (photoelectron emission) and the bulk (optical absorption) interacting centres were influenced by radiation showing maximum effect after 45 minutes of irradiation.
DOI: 10.1109/ISAF.2012.6297719
Hyperlink: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6297719 
Reference Andersons, B., Dehtjars, J., Grīva, A., Lancere, L., Sansonetti, E. Wettability of the PMMA Surface Caused by Its Polarization due to UV Radiation. In: International Symposium on Applications of Ferroelectrics (ISAF 2012): Proceedings, Portugal, Aveiro, 9-13 July, 2012. Piscataway: IEEE, 2012, pp.534-536. ISBN 978-1-4673-2668-1. Available from: doi:10.1109/ISAF.2012.6297719
Additional information Citation count:
ID 13924