Influence of Surface Textures and Patterns Produced by Laser Ablation on Blood Compatibility of Stainless Steel
Abstract Laser surface texturing (LST) is applied to modify the morphology of surface topographic features, inducing the corresponding effects on surface chemistry and wettability. This study focuses on application of this technique to treatment of materials surface used in cardiovascular stents. It...
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Wiley-VCH
2025-07-01
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| Series: | Advanced Materials Interfaces |
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| Online Access: | https://doi.org/10.1002/admi.202500104 |
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| author | Jialin Dong Manuela Pacella Yang Liu |
| author_facet | Jialin Dong Manuela Pacella Yang Liu |
| author_sort | Jialin Dong |
| collection | DOAJ |
| description | Abstract Laser surface texturing (LST) is applied to modify the morphology of surface topographic features, inducing the corresponding effects on surface chemistry and wettability. This study focuses on application of this technique to treatment of materials surface used in cardiovascular stents. It is built upon an optimised LST process from previous work, and hemocompatibility test is carried out using whole human blood. Three different types of surface textures are prepared on 316 stainless steel as smooth grooved, rough grooved, and rough isotropy textures, respectively, using nano‐second laser ablation. The characterization of surface morphology, roughness, chemistry and wettability are carried out following laser treatment. Depending on the geometry of the patterns produced, treated surfaces became more super‐hydrophilic or more hydrophobic (water contact angle from 0° or up to 146.20 ± 1.37°). Blood contact test revealed the topographic effects on attachment and spreading of blood cells, with more cells observed on a smooth surface than on a rough surface. Hence, LST with nano‐second laser can be used to introduce a large range of topographic features, from micro‐ to nano‐scales. It would be a robust process to be included in the manufacturing of cardiovascular stents to improve the hemocompatibility of stainless steel. |
| format | Article |
| id | doaj-art-d2b89bc022044799a12e4f59f561ad52 |
| institution | Kabale University |
| issn | 2196-7350 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj-art-d2b89bc022044799a12e4f59f561ad522025-08-20T03:58:36ZengWiley-VCHAdvanced Materials Interfaces2196-73502025-07-011214n/an/a10.1002/admi.202500104Influence of Surface Textures and Patterns Produced by Laser Ablation on Blood Compatibility of Stainless SteelJialin Dong0Manuela Pacella1Yang Liu2Wolfson School of Mechanical Electrical and Manufacturing Engineering Loughborough University Loughborough LE113TU UKWolfson School of Mechanical Electrical and Manufacturing Engineering Loughborough University Loughborough LE113TU UKCentre of Biological Engineering Wolfson School of Mechanical Electrical and Manufacturing Engineering Loughborough University Loughborough LE113TU UKAbstract Laser surface texturing (LST) is applied to modify the morphology of surface topographic features, inducing the corresponding effects on surface chemistry and wettability. This study focuses on application of this technique to treatment of materials surface used in cardiovascular stents. It is built upon an optimised LST process from previous work, and hemocompatibility test is carried out using whole human blood. Three different types of surface textures are prepared on 316 stainless steel as smooth grooved, rough grooved, and rough isotropy textures, respectively, using nano‐second laser ablation. The characterization of surface morphology, roughness, chemistry and wettability are carried out following laser treatment. Depending on the geometry of the patterns produced, treated surfaces became more super‐hydrophilic or more hydrophobic (water contact angle from 0° or up to 146.20 ± 1.37°). Blood contact test revealed the topographic effects on attachment and spreading of blood cells, with more cells observed on a smooth surface than on a rough surface. Hence, LST with nano‐second laser can be used to introduce a large range of topographic features, from micro‐ to nano‐scales. It would be a robust process to be included in the manufacturing of cardiovascular stents to improve the hemocompatibility of stainless steel.https://doi.org/10.1002/admi.202500104blood contactcardiovascular stenthemocompatibilitylaserstainless steelsurface texturing |
| spellingShingle | Jialin Dong Manuela Pacella Yang Liu Influence of Surface Textures and Patterns Produced by Laser Ablation on Blood Compatibility of Stainless Steel Advanced Materials Interfaces blood contact cardiovascular stent hemocompatibility laser stainless steel surface texturing |
| title | Influence of Surface Textures and Patterns Produced by Laser Ablation on Blood Compatibility of Stainless Steel |
| title_full | Influence of Surface Textures and Patterns Produced by Laser Ablation on Blood Compatibility of Stainless Steel |
| title_fullStr | Influence of Surface Textures and Patterns Produced by Laser Ablation on Blood Compatibility of Stainless Steel |
| title_full_unstemmed | Influence of Surface Textures and Patterns Produced by Laser Ablation on Blood Compatibility of Stainless Steel |
| title_short | Influence of Surface Textures and Patterns Produced by Laser Ablation on Blood Compatibility of Stainless Steel |
| title_sort | influence of surface textures and patterns produced by laser ablation on blood compatibility of stainless steel |
| topic | blood contact cardiovascular stent hemocompatibility laser stainless steel surface texturing |
| url | https://doi.org/10.1002/admi.202500104 |
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