Plasma Processing of Low Vapor Pressure Liquids to Generate Functional Surfaces
The concept of depositing solid films on low-vapor pressure liquids is introduced and developed into a top-down approach to functionalize surfaces by attaching liquid polyethylene glycol (PEG). Solid-liquid gradients were formed by low-pressure plasma treatment yielding cross-linking and/or depositi...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-12-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/25/24/6024 |
| _version_ | 1827699701925806080 |
|---|---|
| author | Sandra Gaiser Urs Schütz Patrick Rupper Dirk Hegemann |
| author_facet | Sandra Gaiser Urs Schütz Patrick Rupper Dirk Hegemann |
| author_sort | Sandra Gaiser |
| collection | DOAJ |
| description | The concept of depositing solid films on low-vapor pressure liquids is introduced and developed into a top-down approach to functionalize surfaces by attaching liquid polyethylene glycol (PEG). Solid-liquid gradients were formed by low-pressure plasma treatment yielding cross-linking and/or deposition of a plasma polymer film subsequently bound to a flexible polydimethylsiloxane (PDMS) backing. The analysis via optical transmission spectroscopy (OTS), optical, confocal laser scanning (CLSM) and scanning electron microscopy (SEM), Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) as well as by water contact angle (WCA) measurements revealed correlations between optical appearance, chemical composition and surface properties of the resulting water absorbing, covalently bound PEG-functionalized surfaces. Requirements for plasma polymer film deposition on low-vapor pressure liquids and effective surface functionalization are defined. Namely, the thickness of the liquid PEG substrate was a crucial parameter for successful film growth and covalent attachment of PEG. The presented method is a practicable approach for the production of functional surfaces featuring long-lasting strong hydrophilic properties, making them predestined for non-fouling or low-friction applications. |
| first_indexed | 2024-03-10T13:55:16Z |
| format | Article |
| id | doaj.art-8234efcb5f394fcd94b848646f9b36be |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T13:55:16Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-8234efcb5f394fcd94b848646f9b36be2023-11-21T01:38:38ZengMDPI AGMolecules1420-30492020-12-012524602410.3390/molecules25246024Plasma Processing of Low Vapor Pressure Liquids to Generate Functional SurfacesSandra Gaiser0Urs Schütz1Patrick Rupper2Dirk Hegemann3Empa, Swiss Federal Laboratories for Materials Science and Technology, Plasma & Coating Group, Lerchenfeldstrasse 5, 9014 St. Gallen, SwitzerlandEmpa, Swiss Federal Laboratories for Materials Science and Technology, Plasma & Coating Group, Lerchenfeldstrasse 5, 9014 St. Gallen, SwitzerlandEmpa, Swiss Federal Laboratories for Materials Science and Technology, Plasma & Coating Group, Lerchenfeldstrasse 5, 9014 St. Gallen, SwitzerlandEmpa, Swiss Federal Laboratories for Materials Science and Technology, Plasma & Coating Group, Lerchenfeldstrasse 5, 9014 St. Gallen, SwitzerlandThe concept of depositing solid films on low-vapor pressure liquids is introduced and developed into a top-down approach to functionalize surfaces by attaching liquid polyethylene glycol (PEG). Solid-liquid gradients were formed by low-pressure plasma treatment yielding cross-linking and/or deposition of a plasma polymer film subsequently bound to a flexible polydimethylsiloxane (PDMS) backing. The analysis via optical transmission spectroscopy (OTS), optical, confocal laser scanning (CLSM) and scanning electron microscopy (SEM), Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) as well as by water contact angle (WCA) measurements revealed correlations between optical appearance, chemical composition and surface properties of the resulting water absorbing, covalently bound PEG-functionalized surfaces. Requirements for plasma polymer film deposition on low-vapor pressure liquids and effective surface functionalization are defined. Namely, the thickness of the liquid PEG substrate was a crucial parameter for successful film growth and covalent attachment of PEG. The presented method is a practicable approach for the production of functional surfaces featuring long-lasting strong hydrophilic properties, making them predestined for non-fouling or low-friction applications.https://www.mdpi.com/1420-3049/25/24/6024plasma polymerizationliquid substratecoating of liquidssolid-liquid gradientsurface functionalizationpolyethylene glycol |
| spellingShingle | Sandra Gaiser Urs Schütz Patrick Rupper Dirk Hegemann Plasma Processing of Low Vapor Pressure Liquids to Generate Functional Surfaces Molecules plasma polymerization liquid substrate coating of liquids solid-liquid gradient surface functionalization polyethylene glycol |
| title | Plasma Processing of Low Vapor Pressure Liquids to Generate Functional Surfaces |
| title_full | Plasma Processing of Low Vapor Pressure Liquids to Generate Functional Surfaces |
| title_fullStr | Plasma Processing of Low Vapor Pressure Liquids to Generate Functional Surfaces |
| title_full_unstemmed | Plasma Processing of Low Vapor Pressure Liquids to Generate Functional Surfaces |
| title_short | Plasma Processing of Low Vapor Pressure Liquids to Generate Functional Surfaces |
| title_sort | plasma processing of low vapor pressure liquids to generate functional surfaces |
| topic | plasma polymerization liquid substrate coating of liquids solid-liquid gradient surface functionalization polyethylene glycol |
| url | https://www.mdpi.com/1420-3049/25/24/6024 |
| work_keys_str_mv | AT sandragaiser plasmaprocessingoflowvaporpressureliquidstogeneratefunctionalsurfaces AT ursschutz plasmaprocessingoflowvaporpressureliquidstogeneratefunctionalsurfaces AT patrickrupper plasmaprocessingoflowvaporpressureliquidstogeneratefunctionalsurfaces AT dirkhegemann plasmaprocessingoflowvaporpressureliquidstogeneratefunctionalsurfaces |