Properties of coatings based on calcium phosphate and their effect on cytocompatibility and bioactivity of titanium nickelide

doi:10.3390/ma16072581

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Marchenko, Ekaterina S. | Kokorev, Oleg V.

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Properties of coatings based on calcium phosphate and their effect on cytocompatibility and bioactivity of titanium nickelide	7 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.3390/ma16072581

#никелид титана

#фосфат кальция

#биологическая активность

#цитосовместимость

#покрытия

Title: Properties of coatings based on calcium phosphate and their effect on cytocompatibility and bioactivity of titanium nickelide
Creator: Marchenko, Ekaterina S.
|
Baigonakova, Gulsharat A.
|
Dubovikov, Kirill M.
|
Kokorev, Oleg V.
|
Gordienko, Ivan I.
|
Chudinova, Ekaterina A.
Date: 2023
DOI: 10.3390/ma16072581
Description: Coatings based on calcium phosphate with thicknesses of 0.5 and 2 µm were obtained by high-frequency magnetron sputtering on NiTi substrates in an argon atmosphere. The coating was characterized using X-ray diffraction, scanning electron microscopy, atomic force microscopy, and in vitro cytocompatibility and bioactivity studies. A biphasic coating of tricalcium phosphate (Ca3(PO4)2) and hydroxyapatite (Ca10(PO4)6(OH)2) with a 100% degree of crystallinity was formed on the surface. The layer enriched in calcium, phosphorus, and oxygen was observed using scanning electron microscopy and energy-dispersive X-ray spectroscopy. Scanning electron microscopy showed that the surface structure is homogeneous without visible defects. The 2 µm thick coating obtained by sputtering with a deposition time of 4 h and a deposition rate of 0.43 µm/h is uniform, contains the highest amount of the calcium phosphate phase, and is most suitable for the faster growth of cells and accelerated formation of apatite layers. Samples with calcium phosphate coatings do not cause hemolysis and have a low cytotoxicity index. The results of immersion in a solution simulating body fluid show that NiTi with the biphasic coating promotes apatite growth, which is beneficial for biological activity.

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collection(s): Сибирский физико-технический институт | Физико-технический факультет
Identifier: смотреть в электронном каталоге НБ ТГУ
Type: статьи в журналах
Source: Materials. 2023. Vol. 16, № 7. P. 2581 (1-13)
Language: eng

Created: 11-01-2024

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Сибирский физико-технический институт

Физико-технический факультет Properties of coatings based on calcium phosphate and their effect on cytocompatibility and bioactivity of titanium nickelide