MODIFICATION OF CALCIUM PHOSPHATE FOAM CERAMICS WITH BIOAPATITE IN SBF SOLUTION
| Autor: | V.K. Krut’ko, L.Yu. Maslova, O.N. Musskaya, T.V. Safronova, A.I. Kulak |
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| Jazyk: | ruština |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, Iss 13, Pp 870-880 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2226-4442 2658-4360 |
| DOI: | 10.26456/pcascnn/2021.13.870 |
| Popis: | The multiphase calcium phosphate foam ceramics, represented by β-tricalcium phosphate (65%) and β-calcium pyrophosphate (25%), including hydroxyapatite (5%) and α-tricalcium phosphate (5%), with 60-64% porosity and a through architecture of polyurethane foam was obtained. The application of a layer of hydroxyapatite led to an increase in the content of hydroxyapatite to 25%, α-tricalcium phosphate to 40%, and an increase in static strength to 0,03 MPa with a decrease in porosity to 49%. The application of the second layer of hydroxyapatite promoted an increase in the content of hydroxyapatite to 40%, the static strength reached 0,05 MPa at a porosity 40%. The bioapatite formation in the shape of «foam spheres» with a size from 2 to 10 μm occurred in the process of modifying all types of foam ceramics in a SBF solution during 21-28 days. The modified calcium phosphate foam ceramics enriched with α-tricalcium phosphate and hydroxyapatite, was characterized by the maximum static strength 0,08 MPa at a porosity 38%. |
| Databáze: | Directory of Open Access Journals |
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