Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Porous SHS material based on TiNi with a microporous surface structure of its pore walls for creating an ophthalmic orbital implants

Version 1 : Received: 22 December 2023 / Approved: 26 December 2023 / Online: 26 December 2023 (14:11:51 CET)

How to cite: Anikeev, S.G.; Hodorenko, V.N.; Kaftaranova, M.I.; Shabalina, A.V.; Artyukhova, N.V.; Terletskaya, O.N.; Kulinich, S.A.; Pakholkina, S.; Bolshevich, E.A.; Promakhov, V.; Medvedev, Y.A.; Gunther, V.E. Porous SHS material based on TiNi with a microporous surface structure of its pore walls for creating an ophthalmic orbital implants. Preprints 2023, 2023121998. https://doi.org/10.20944/preprints202312.1998.v1 Anikeev, S.G.; Hodorenko, V.N.; Kaftaranova, M.I.; Shabalina, A.V.; Artyukhova, N.V.; Terletskaya, O.N.; Kulinich, S.A.; Pakholkina, S.; Bolshevich, E.A.; Promakhov, V.; Medvedev, Y.A.; Gunther, V.E. Porous SHS material based on TiNi with a microporous surface structure of its pore walls for creating an ophthalmic orbital implants. Preprints 2023, 2023121998. https://doi.org/10.20944/preprints202312.1998.v1

Abstract

This work deals with a novel porous TiNi-based material for ophthalmic orbital implants that was produced by high-temperature synthesis (SHS) and possesses a specific microstructure of its surface pores, which makes it attractive for biomedical use in implants. After preparation via SHS, the obtained porous TiNi material was etched in acidic environment, to get rid of its surface Ti2Ni secondary-phase particles. This was found to improve the material’s surface morphology, adding micro-roughness to its macro-rough pores. As a result, cell growth tests conducted on the material demonstrated improved cell adhesion and growth kinetics on such a porous material with improved roughness. Finally, the material was tested in vivo as an ophthalmic orbital implant, demonstrating good biocompatibility, good degree of biointegration with surrounding eyeball tissues, and no signs of rejection after as long as 180 days. Thus, the novel porous TiNi-based material shows promise for its use in ophthalmic implantology, for instanse for manufacturing musculoskeletal stumps of the eyeball after evisceration, as it is biocompatible, has a high tissue-implant integration potential and demonstrates reduced risks of exposure and rejection of the implant.

Keywords

TiNi; ophthalmic orbital implants; porous material; powder metallurgy; self-propagating high-temperature synthesis, structure; surface modification; biocompatibility

Subject

Chemistry and Materials Science, Biomaterials

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