Hemocompatibility properties of a polymer surface treated in plasma containing sulfur.
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| Title: | Hemocompatibility properties of a polymer surface treated in plasma containing sulfur. |
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| Authors: | Vesel, Alenka1, Zaplotnik, Rok1, Modic, Martina1, Mozetic, Miran1 |
| Source: | Surface & Interface Analysis: SIA. Jul2016, Vol. 48 Issue 7, p601-605. 5p. |
| Subjects: | Compatibility testing (Hematology), Blood platelet aggregation, Blood plasma, Oxidation of sulfur dioxide, Oxidation of hydrogen sulfide, Sulfur compounds analysis |
| Abstract: | Polymer polyethylene terephthalate was treated in plasmas containing sulfur to incorporate different sulfur functional groups and improve its hemocompatibility properties. Plasma was created either by SO2, H2S or an H2S/O2 mixture. Sequential treatments in H2S and O2 plasmas were also used. The surface of the treated samples was analyzed using X-ray photoelectron spectroscopy, and surface hemocompatibility was tested by investigating platelet adhesion. While SO2 plasma caused functionalization of the surface with -SO3 and -SO4 functional groups, H2S plasma caused functionalization with non-oxidized -SH2 sulfur groups, as well as sulfur deposition on the polymer surface. Addition of oxygen to the H2S gas caused a significant decrease in the amount of sulfur on the polymer surface and only minor sulfur oxidation. This observation led to the conclusion that added oxygen removed/prevented sulfur deposition on the polymer surface. Enhanced results were obtained by a sequential treatment in H2S and then O2 plasma, where oxidation of sulfur and formation of -SO and -SO2 functional groups were observed. The O2 plasma exposure had to be short enough to prevent the unwanted removal of sulfur from the surface. High platelet adhesion was observed for all plasma-treated surfaces. Copyright © 2016 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR] |
| Copyright of Surface & Interface Analysis: SIA is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 116394955 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Hemocompatibility properties of a polymer surface treated in plasma containing sulfur. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Vesel%2C+Alenka%22">Vesel, Alenka</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zaplotnik%2C+Rok%22">Zaplotnik, Rok</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Modic%2C+Martina%22">Modic, Martina</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mozetic%2C+Miran%22">Mozetic, Miran</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Surface+%26+Interface+Analysis%3A+SIA%22">Surface & Interface Analysis: SIA</searchLink>. Jul2016, Vol. 48 Issue 7, p601-605. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Compatibility+testing+%28Hematology%29%22">Compatibility testing (Hematology)</searchLink><br /><searchLink fieldCode="DE" term="%22Blood+platelet+aggregation%22">Blood platelet aggregation</searchLink><br /><searchLink fieldCode="DE" term="%22Blood+plasma%22">Blood plasma</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation+of+sulfur+dioxide%22">Oxidation of sulfur dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation+of+hydrogen+sulfide%22">Oxidation of hydrogen sulfide</searchLink><br /><searchLink fieldCode="DE" term="%22Sulfur+compounds+analysis%22">Sulfur compounds analysis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Polymer polyethylene terephthalate was treated in plasmas containing sulfur to incorporate different sulfur functional groups and improve its hemocompatibility properties. Plasma was created either by SO2, H2S or an H2S/O2 mixture. Sequential treatments in H2S and O2 plasmas were also used. The surface of the treated samples was analyzed using X-ray photoelectron spectroscopy, and surface hemocompatibility was tested by investigating platelet adhesion. While SO2 plasma caused functionalization of the surface with -SO3 and -SO4 functional groups, H2S plasma caused functionalization with non-oxidized -SH2 sulfur groups, as well as sulfur deposition on the polymer surface. Addition of oxygen to the H2S gas caused a significant decrease in the amount of sulfur on the polymer surface and only minor sulfur oxidation. This observation led to the conclusion that added oxygen removed/prevented sulfur deposition on the polymer surface. Enhanced results were obtained by a sequential treatment in H2S and then O2 plasma, where oxidation of sulfur and formation of -SO and -SO2 functional groups were observed. The O2 plasma exposure had to be short enough to prevent the unwanted removal of sulfur from the surface. High platelet adhesion was observed for all plasma-treated surfaces. Copyright © 2016 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Surface & Interface Analysis: SIA is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/sia.5965 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 601 Subjects: – SubjectFull: Compatibility testing (Hematology) Type: general – SubjectFull: Blood platelet aggregation Type: general – SubjectFull: Blood plasma Type: general – SubjectFull: Oxidation of sulfur dioxide Type: general – SubjectFull: Oxidation of hydrogen sulfide Type: general – SubjectFull: Sulfur compounds analysis Type: general Titles: – TitleFull: Hemocompatibility properties of a polymer surface treated in plasma containing sulfur. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Vesel, Alenka – PersonEntity: Name: NameFull: Zaplotnik, Rok – PersonEntity: Name: NameFull: Modic, Martina – PersonEntity: Name: NameFull: Mozetic, Miran IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 01422421 Numbering: – Type: volume Value: 48 – Type: issue Value: 7 Titles: – TitleFull: Surface & Interface Analysis: SIA Type: main |
| ResultId | 1 |
