Cytocompatibility Evaluation and Surface Characterization of TiNi Deformed by High-pressure Torsion
Effect of high-pressure torsion (HPT) deformation on biocompatibility and surface chemistry of TiNi was systematically investigated. Ti–50 mol% Ni was subjected to HPT straining for different numbers of turns, N = 0.25, 0.5, 1, 5 and 10 at a rotation speed of 1 rpm. X-ray photoelectron spectroscopy...
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| Format: | Article |
| Language: | English English |
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ELSEVIER
2014
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| Online Access: | http://umpir.ump.edu.my/id/eprint/8035/1/Awang_Shri_2014_MSEC.pdf http://umpir.ump.edu.my/id/eprint/8035/4/Cytocompatibility%20Evaluation%20and%20Surface%20Characterization%20of%20Tini%20Deformed%20by%20High-Pressure%20Torsion.pdf |
| _version_ | 1796990378794024960 |
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| author | Awang Shri, Dayangku Noorfazidah Tsuchiya, Koichi Yamamoto, Akiko |
| author_facet | Awang Shri, Dayangku Noorfazidah Tsuchiya, Koichi Yamamoto, Akiko |
| author_sort | Awang Shri, Dayangku Noorfazidah |
| collection | UMP |
| description | Effect of high-pressure torsion (HPT) deformation on biocompatibility and surface chemistry of TiNi was systematically investigated. Ti–50 mol% Ni was subjected to HPT straining for different numbers of turns, N = 0.25, 0.5, 1, 5 and 10 at a rotation speed of 1 rpm. X-ray photoelectron spectroscopy observations after 7 days of cell culture revealed the changes in the surface oxide composition, enrichment of Ti and detection of nitrogen derived from organic molecules in the culture medium. Plating efficiency of L929 cells was slightly increased by HPT deformation though no significant difference was observed. Albumin adsorption was higher in HPT-deformed samples, while vitronectin adsorption was peaked at N = 1. HPT deformation was also found to effectively suppress the Ni ion release from the TiNi samples into the cell culture medium even after the low degree of deformation at N = 0.25. |
| first_indexed | 2024-03-06T11:50:41Z |
| format | Article |
| id | UMPir8035 |
| institution | Universiti Malaysia Pahang |
| language | English English |
| last_indexed | 2024-03-06T11:50:41Z |
| publishDate | 2014 |
| publisher | ELSEVIER |
| record_format | dspace |
| spelling | UMPir80352017-08-17T06:48:57Z http://umpir.ump.edu.my/id/eprint/8035/ Cytocompatibility Evaluation and Surface Characterization of TiNi Deformed by High-pressure Torsion Awang Shri, Dayangku Noorfazidah Tsuchiya, Koichi Yamamoto, Akiko TJ Mechanical engineering and machinery Effect of high-pressure torsion (HPT) deformation on biocompatibility and surface chemistry of TiNi was systematically investigated. Ti–50 mol% Ni was subjected to HPT straining for different numbers of turns, N = 0.25, 0.5, 1, 5 and 10 at a rotation speed of 1 rpm. X-ray photoelectron spectroscopy observations after 7 days of cell culture revealed the changes in the surface oxide composition, enrichment of Ti and detection of nitrogen derived from organic molecules in the culture medium. Plating efficiency of L929 cells was slightly increased by HPT deformation though no significant difference was observed. Albumin adsorption was higher in HPT-deformed samples, while vitronectin adsorption was peaked at N = 1. HPT deformation was also found to effectively suppress the Ni ion release from the TiNi samples into the cell culture medium even after the low degree of deformation at N = 0.25. ELSEVIER 2014-07-02 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8035/1/Awang_Shri_2014_MSEC.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/8035/4/Cytocompatibility%20Evaluation%20and%20Surface%20Characterization%20of%20Tini%20Deformed%20by%20High-Pressure%20Torsion.pdf Awang Shri, Dayangku Noorfazidah and Tsuchiya, Koichi and Yamamoto, Akiko (2014) Cytocompatibility Evaluation and Surface Characterization of TiNi Deformed by High-pressure Torsion. Materials Science and Engineering: C, 43. pp. 411-417. ISSN 0928-4931. (Published) http://dx.doi.org/10.1016/j.msec.2014.07.014 doi:10.1016/j.msec.2014.07.014 |
| spellingShingle | TJ Mechanical engineering and machinery Awang Shri, Dayangku Noorfazidah Tsuchiya, Koichi Yamamoto, Akiko Cytocompatibility Evaluation and Surface Characterization of TiNi Deformed by High-pressure Torsion |
| title | Cytocompatibility Evaluation and Surface Characterization of TiNi Deformed by High-pressure Torsion |
| title_full | Cytocompatibility Evaluation and Surface Characterization of TiNi Deformed by High-pressure Torsion |
| title_fullStr | Cytocompatibility Evaluation and Surface Characterization of TiNi Deformed by High-pressure Torsion |
| title_full_unstemmed | Cytocompatibility Evaluation and Surface Characterization of TiNi Deformed by High-pressure Torsion |
| title_short | Cytocompatibility Evaluation and Surface Characterization of TiNi Deformed by High-pressure Torsion |
| title_sort | cytocompatibility evaluation and surface characterization of tini deformed by high pressure torsion |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/8035/1/Awang_Shri_2014_MSEC.pdf http://umpir.ump.edu.my/id/eprint/8035/4/Cytocompatibility%20Evaluation%20and%20Surface%20Characterization%20of%20Tini%20Deformed%20by%20High-Pressure%20Torsion.pdf |
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