Effect of Ni ion release on the cells in contact with NiTi alloys
Language English Country Germany Media print-electronic
Document type Journal Article
Grant support
15-16336S
Grantová Agentura České Republiky
PubMed
31893362
DOI
10.1007/s11356-019-07506-8
PII: 10.1007/s11356-019-07506-8
Knihovny.cz E-resources
- Keywords
- Biocompatibility, Biomaterial, Cell, Hydrogen modification, Nitinol,
- MeSH
- Endothelial Cells chemistry MeSH
- Ions chemistry MeSH
- Humans MeSH
- Nickel * chemistry MeSH
- Surface Properties MeSH
- Alloys chemistry MeSH
- Titanium * chemistry MeSH
- Check Tag
- Humans MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Ions MeSH
- Nickel * MeSH
- Alloys MeSH
- Titanium * MeSH
Nickel-titanium alloys have been used in medical applications for several years; however, biocompatibility of the material remains controversial. In the present study, the human umbilical vein endothelial cells (HUVEC) were cultured in contact with the nitinol used in two different heat treatment surface modifications-helium and hydrogen. The amount of Ni ions released from these alloys in contact with HUVEC was measured in media and in the cells by ICP-MS. An increased release of Ni ions was detected in He alloy compared with H2 alloy modification with an elevation with the metal exposition duration (24 h vs. 72 h). The cells contained the Ni ions in both selected alloy modifications with the lower levels in H2 alloys. To evaluate the potential of multiple metal applications, similar values were observed in media and in cell suspension for all surface modification combinations. The model analysis of effect of metal ion release on distant cells in the body showed that the concentration is interestingly similar to concentrations in cells in direct contact with the metal alloy. The cells are able to regulate the concentration of Ni ions within the cell. According to our best knowledge, the study for the first time describes the presence of Ni ions released from nitinol directly in the cells. In the case of the H2 modification, the lowest levels of Ni ions were detected both in medium and in the cells, which likely increases the biocompatibility of the nitinol alloy.
Academy of Sciences CR Institute of Physics of Materials Zizkova 22 616 62 Brno Czech Republic
Institute of Physiology Medical Faculty Masaryk University 625 00 Brno Czech Republic
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