Polyurethane Treated in Ar/C<sub>2</sub>H<sub>2</sub>/Ar Plasma: Towards Deformable Coating with Improved Albumin Adsorption

Plasma modification of soft polymeric surfaces has many prospects in creating biomedical devices. The deformability of the obtained coatings should be studied, as the usage of such materials implies mechanical loads. Polyurethane (a two-phase synthetic polymer) treated in argon/acetylene plasma, wit...

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Autores principales:	Ilya A. Morozov, Alexander S. Kamenetskikh, Anton Y. Beliaev, Roman I. Izumov, Marina G. Scherban, Larisa M. Lemkina, Dmitriy M. Kiselkov
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	polyurethane argon acetylene plasma structure stiffness Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/256832a070b44e23b9e5eb96060bb716
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spelling	oai:doaj.org-article:256832a070b44e23b9e5eb96060bb7162021-11-11T14:56:59ZPolyurethane Treated in Ar/C<sub>2</sub>H<sub>2</sub>/Ar Plasma: Towards Deformable Coating with Improved Albumin Adsorption10.3390/app112197932076-3417https://doaj.org/article/256832a070b44e23b9e5eb96060bb7162021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/9793https://doaj.org/toc/2076-3417Plasma modification of soft polymeric surfaces has many prospects in creating biomedical devices. The deformability of the obtained coatings should be studied, as the usage of such materials implies mechanical loads. Polyurethane (a two-phase synthetic polymer) treated in argon/acetylene plasma, with post-treatment in argon plasma, was investigated. A carbon-containing nanocoating (discontinuous mesh-like structures) with structural–mechanical inhomogeneities is formed by the action of Ar/C<sub>2</sub>H<sub>2</sub> plasma. The heterogeneities of the coating are due to the complex structure of the initial substrate and short duration of treatment; as the treatment time increases, the coatings become homogeneous, but their stiffness rises. The treated surfaces in the uniaxial tensile state have micro and/or nanocracks in certain cases of plasma treatment. This is associated with an increased elastic modulus of the coatings. The coatings without cracks have regions with sufficiently alternating stiffness. Post-treatment in argon plasma increases wettability and free surface energy, positively affecting the adsorption of albumin. The stiffness of such coatings increases, becoming more homogeneous, which slightly reduces their crack resistance. Thus, plasma coatings on soft polymers operating under mechanical loads without causing damage should have sufficiently low stiffness, and/or structural-mechanical heterogeneities that provide redistribution of stress.Ilya A. MorozovAlexander S. KamenetskikhAnton Y. BeliaevRoman I. IzumovMarina G. ScherbanLarisa M. LemkinaDmitriy M. KiselkovMDPI AGarticlepolyurethaneargonacetyleneplasmastructurestiffnessTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 9793, p 9793 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	polyurethane argon acetylene plasma structure stiffness Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	polyurethane argon acetylene plasma structure stiffness Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Ilya A. Morozov Alexander S. Kamenetskikh Anton Y. Beliaev Roman I. Izumov Marina G. Scherban Larisa M. Lemkina Dmitriy M. Kiselkov Polyurethane Treated in Ar/C<sub>2</sub>H<sub>2</sub>/Ar Plasma: Towards Deformable Coating with Improved Albumin Adsorption
description	Plasma modification of soft polymeric surfaces has many prospects in creating biomedical devices. The deformability of the obtained coatings should be studied, as the usage of such materials implies mechanical loads. Polyurethane (a two-phase synthetic polymer) treated in argon/acetylene plasma, with post-treatment in argon plasma, was investigated. A carbon-containing nanocoating (discontinuous mesh-like structures) with structural–mechanical inhomogeneities is formed by the action of Ar/C<sub>2</sub>H<sub>2</sub> plasma. The heterogeneities of the coating are due to the complex structure of the initial substrate and short duration of treatment; as the treatment time increases, the coatings become homogeneous, but their stiffness rises. The treated surfaces in the uniaxial tensile state have micro and/or nanocracks in certain cases of plasma treatment. This is associated with an increased elastic modulus of the coatings. The coatings without cracks have regions with sufficiently alternating stiffness. Post-treatment in argon plasma increases wettability and free surface energy, positively affecting the adsorption of albumin. The stiffness of such coatings increases, becoming more homogeneous, which slightly reduces their crack resistance. Thus, plasma coatings on soft polymers operating under mechanical loads without causing damage should have sufficiently low stiffness, and/or structural-mechanical heterogeneities that provide redistribution of stress.
format	article
author	Ilya A. Morozov Alexander S. Kamenetskikh Anton Y. Beliaev Roman I. Izumov Marina G. Scherban Larisa M. Lemkina Dmitriy M. Kiselkov
author_facet	Ilya A. Morozov Alexander S. Kamenetskikh Anton Y. Beliaev Roman I. Izumov Marina G. Scherban Larisa M. Lemkina Dmitriy M. Kiselkov
author_sort	Ilya A. Morozov
title	Polyurethane Treated in Ar/C<sub>2</sub>H<sub>2</sub>/Ar Plasma: Towards Deformable Coating with Improved Albumin Adsorption
title_short	Polyurethane Treated in Ar/C<sub>2</sub>H<sub>2</sub>/Ar Plasma: Towards Deformable Coating with Improved Albumin Adsorption
title_full	Polyurethane Treated in Ar/C<sub>2</sub>H<sub>2</sub>/Ar Plasma: Towards Deformable Coating with Improved Albumin Adsorption
title_fullStr	Polyurethane Treated in Ar/C<sub>2</sub>H<sub>2</sub>/Ar Plasma: Towards Deformable Coating with Improved Albumin Adsorption
title_full_unstemmed	Polyurethane Treated in Ar/C<sub>2</sub>H<sub>2</sub>/Ar Plasma: Towards Deformable Coating with Improved Albumin Adsorption
title_sort	polyurethane treated in ar/c<sub>2</sub>h<sub>2</sub>/ar plasma: towards deformable coating with improved albumin adsorption
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/256832a070b44e23b9e5eb96060bb716
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Polyurethane Treated in Ar/C<sub>2</sub>H<sub>2</sub>/Ar Plasma: Towards Deformable Coating with Improved Albumin Adsorption

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