The relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation

Saeed Heidari Keshel1, S Neda Kh Azhdadi2, Azadeh Asefnezhad2, Mohammad Sadraeian3, Mohamad Montazeri4, Esmaeil Biazar51Stem Cell Preparation Unit, Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences; 2Department of Biomaterial Engineering, Faculty of Biomedical Engineeri...

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Autores principales:	Heidari S, Azhdadi SN, Asefnezhad A, Sadraeian M, Montazeri M, Biazar E
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2011
Materias:	Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/da1d612a8ec744e496bad2879e759746
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spelling	oai:doaj.org-article:da1d612a8ec744e496bad2879e7597462021-12-02T05:26:36ZThe relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation1176-91141178-2013https://doaj.org/article/da1d612a8ec744e496bad2879e7597462011-04-01T00:00:00Zhttp://www.dovepress.com/the-relationship-between-cellular-adhesion-and-surface-roughness-for-p-a6991https://doaj.org/toc/1176-9114https://doaj.org/toc/1178-2013Saeed Heidari Keshel1, S Neda Kh Azhdadi2, Azadeh Asefnezhad2, Mohammad Sadraeian3, Mohamad Montazeri4, Esmaeil Biazar51Stem Cell Preparation Unit, Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences; 2Department of Biomaterial Engineering, Faculty of Biomedical Engineering, Science and Research Branch - Islamic Azad University; 3Young Researchers Club, Islamic Azad University, North Tehran Branch, Tehran; 4Faculty of Medical Sciences, Babol University of Medical Sciences, Babol; 5Department of Chemistry, Islamic Azad University, Tonekabon, IranAbstract: Surface modification of medical polymers is carried out to improve biocompatibility. In this study, conventional polyurethane was exposed to microwave plasma treatment with oxygen and argon gases for 30 seconds and 60 seconds. Attenuated total reflection Fourier transform infrared spectra investigations of irradiated samples indicated the presence of functional groups. Atomic force microscope images of samples irradiated with inert and active gases indicated the nanometric topography of the sample surfaces. Samples irradiated by oxygen plasma indicated high roughness compared with those irradiated by inert plasma for the different lengths of time. In addition, surface roughness increased with time, which can be due to a reduction of contact angle of samples irradiated by oxygen plasma. Contact angle analysis indicated a reduction in samples irradiated with both types of plasma. However, samples irradiated with oxygen plasma indicated lower contact angle compared with those irradiated by argon plasma. Cellular investigations with unrestricted somatic stem cells showed better adhesion, cell growth, and proliferation among samples radiated by oxygen plasma for longer than for normal samples.Keywords: surface topography, polyurethane, plasma treatment, cellular investigation Heidari SAzhdadi SNAsefnezhad ASadraeian MMontazeri MBiazar EDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2011, Iss default, Pp 641-647 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine (General) R5-920
spellingShingle	Medicine (General) R5-920 Heidari S Azhdadi SN Asefnezhad A Sadraeian M Montazeri M Biazar E The relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation
description	Saeed Heidari Keshel1, S Neda Kh Azhdadi2, Azadeh Asefnezhad2, Mohammad Sadraeian3, Mohamad Montazeri4, Esmaeil Biazar51Stem Cell Preparation Unit, Eye Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences; 2Department of Biomaterial Engineering, Faculty of Biomedical Engineering, Science and Research Branch - Islamic Azad University; 3Young Researchers Club, Islamic Azad University, North Tehran Branch, Tehran; 4Faculty of Medical Sciences, Babol University of Medical Sciences, Babol; 5Department of Chemistry, Islamic Azad University, Tonekabon, IranAbstract: Surface modification of medical polymers is carried out to improve biocompatibility. In this study, conventional polyurethane was exposed to microwave plasma treatment with oxygen and argon gases for 30 seconds and 60 seconds. Attenuated total reflection Fourier transform infrared spectra investigations of irradiated samples indicated the presence of functional groups. Atomic force microscope images of samples irradiated with inert and active gases indicated the nanometric topography of the sample surfaces. Samples irradiated by oxygen plasma indicated high roughness compared with those irradiated by inert plasma for the different lengths of time. In addition, surface roughness increased with time, which can be due to a reduction of contact angle of samples irradiated by oxygen plasma. Contact angle analysis indicated a reduction in samples irradiated with both types of plasma. However, samples irradiated with oxygen plasma indicated lower contact angle compared with those irradiated by argon plasma. Cellular investigations with unrestricted somatic stem cells showed better adhesion, cell growth, and proliferation among samples radiated by oxygen plasma for longer than for normal samples.Keywords: surface topography, polyurethane, plasma treatment, cellular investigation
format	article
author	Heidari S Azhdadi SN Asefnezhad A Sadraeian M Montazeri M Biazar E
author_facet	Heidari S Azhdadi SN Asefnezhad A Sadraeian M Montazeri M Biazar E
author_sort	Heidari S
title	The relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation
title_short	The relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation
title_full	The relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation
title_fullStr	The relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation
title_full_unstemmed	The relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation
title_sort	relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation
publisher	Dove Medical Press
publishDate	2011
url	https://doaj.org/article/da1d612a8ec744e496bad2879e759746
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The relationship between cellular adhesion and surface roughness for polyurethane modified by microwave plasma radiation

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