Počet záznamů: 1
Revisiting bioactivity of calcium titanate and titanium dioxide: Hydrolysis and complexation effects in osteogenic medium
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SYSNO ASEP 0560435 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Revisiting bioactivity of calcium titanate and titanium dioxide: Hydrolysis and complexation effects in osteogenic medium Tvůrce(i) Křenek, T. (CZ)
Stich, T. (DE)
Docheva, D. (DE)
Mikysek, Petr (GLU-S) SAI, ORCID
Koštejn, Martin (UCHP-M) RID, SAI, ORCID
Jandová, Věra (UCHP-M) RID, ORCID, SAI
Fajgar, Radek (UCHP-M) RID, ORCID, SAI
Pola, M. (CZ)
Kovářík, T. (CZ)
Moskal, D. (CZ)
Forejtová, M. (CZ)
Pola, Josef (UCHP-M) RID, ORCID, SAIČíslo článku 128820 Zdroj.dok. Surface and Coatings Technology. - : Elsevier - ISSN 0257-8972
Roč. 447, October (2022)Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Calcium titanate coat ; Hydrolysis ; Micro/nanostructured oxidic titanium ; hMSCs ; Osteogenic differentiation ; DMEM-TiO2 interactions ; Self-organized precipitation of DMEM Obor OECD Mineralogy Způsob publikování Omezený přístup Institucionální podpora GLU-S - RVO:67985831 ; UCHP-M - RVO:67985858 UT WOS 000853444000001 EID SCOPUS 85137110806 DOI 10.1016/j.surfcoat.2022.128820 Anotace This study characterized laser-deposited CaTiO3 coats on several substrates by electron microscopy, X-ray diffraction, and Raman spectra. The hydrolytic stability of such coats exposed to ambient air and immersed into culture and osteogenic media has been respectively assessed by X-ray photoelectron spectra and energy dispersive X-ray analysis. It is shown these coats on titanium and micro/nanostructured oxidic titanium are not stable in air and culture or osteogenic media where they undergo hydrolysis and Ca leakage. The role of this hydrolysis is assessed and discussed in terms of not yet acknowledged complexation of the developing TiO2 surface with constituents of Dulbecco's Modified Eagle's medium. The effect of the deposited and additionally heated CT coatings on human mesenchymal stem cells is assessed regarding survival, proliferation and differentiation towards the osteogenic lineage in osteogenic medium. It is also stressed that the identified CaTiO3 hydrolysis in air and aquatic media seriously impacts the interpretation of bioactivity and physicochemical, catalytic and photocatalytic properties of CaTiO3 surfaces, which has not been yet admitted and led to erroneous conclusions in many previous studies. Pracoviště Geologický ústav Kontakt Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Rok sběru 2023 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0257897222007411
Počet záznamů: 1