Тип публикации: статья из журнала
Год издания: 2016
Идентификатор DOI: 10.1016/j.msec.2016.01.075
Ключевые слова: Plasma, Surface treatment, Surface energy, Polar component, poly-3-hydroxybutyrate membranes, Plasma, Polar component, poly-3-hydroxybutyrate membranes, Surface energy, Surface treatment, Ammonia, Biodegradable polymers, Cell adhesion, Contact angle, Free energy, Interfacial energy, Plasma applications, Plasmas, Surface chemistry, Surface properties, Surface roughness, Surface topography, Wetting, Biological performance, Crystalline structure, Polar components, Poly-3-hydroxybutyrate, Surface free energy, Surface roughness changes, Surface wettability, Water contact angle, Surface treatment
Аннотация: The surface properties of poly-3-hydroxybutyrate (P3HB) membranes were modified using oxygen and an ammonia radio-frequency (RF, 13.56 MHz) plasma. The plasma treatment procedures used in the study only affected the surface properties, including surface topography, without inducing any significant changes in the crystalline structure of the polymer, with the exception being a power level of 250 W. The wettability of the modified P3HB surfaces was significantly increased after the plasma treatment, irrespective of the treatment procedure used. It was revealed that both surface chemistry and surface roughness changes caused by the plasma treatment affected surface wettability. A treatment-induced surface aging effect was observed and resulted in an increase in the water contact angle and a decrease in the surface free energy. However, the difference in the water contact angle between the polymers that had been treated for 4 weeks and the untreated polymer surfaces was still significant. A dependence between cell adhesion and proliferation and the polar component of the surface energy was revealed. The increase in the polar component after the ammonia plasma modification significantly increased cell adhesion and proliferation on biodegradable polymer surfaces compared to the untreated P3HB and the P3HB modified using an oxygen plasma. (C) 2016 Elsevier B.V. All rights reserved.
Журнал: MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
Выпуск журнала: Vol. 62
Номера страниц: 450-457
ISSN журнала: 09284931
Место издания: AMSTERDAM
Издатель: ELSEVIER SCIENCE BV
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