Publication details

Effect of Nitinol surface with nanotubes and/or ordered nanopores on cell behavior

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Year of publication 2022
Type Article in Periodical
Magazine / Source Metallomics
MU Faculty or unit

Faculty of Medicine

Keywords Nitinol; surface nanostructuration; anodic oxidation; Ni ion release; cell behavior
Description Recent medical applications have specific requirements on materials and Nitinol can fulfill them due to its exceptional characteristics, which can be further improved by modifications of the material surface. Various surface nanostructuring methods are utilized to enhance characteristics of oxide layer, which naturally develops on the Nitinol surface, leading to improved biocompatibility and corrosion resistance. This review is focused on studies investigating the behavior of various cell types on surface nanotubes and ordered nanopores prepared by anodic oxidation, a technique allowing fabrication of nanostructures with defined parameters. Results showed that certain dimensions of nanotubes positively affect adhesion and viability of osteoblasts and endothelial cells on the surface, contrary to negative effect on smooth muscle cells, both required by the medical applications. Furthermore, increased antibacterial effect correlated with the nanostructure topography and release rates of Ni ions.
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