Синтез кальций-фосфатных слоев на биоактивных композитах TiO2–SiO2–P2O5/CaO и TiO2–SiO2–P2O5/La2O3

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Abstract

В работе установлены свойства карбоксильного ионита с дивинилбензольной матрицей по отношению к ионам кальция и лантана(III). Золь–гель-методом получены композиты TiO2–SiO2–P2O5/CaO и TiO2–SiO2–P2O5/La2O3 на основе катионита «Токем-250». Выявлены особенности фазообразования и физико-химических свойств полученных материалов. Установлено, что на поверхности материалов TiO2–SiO2–P2O5/CaO и TiO2–SiO2–P2O5/La2O3 в жидкости, имитирующей внутреннюю среду организма человека, способен образовываться кальций-фосфатный слой.

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About the authors

В. А. Ткачук

Национальный исследовательский Томский государственный университет

Author for correspondence.
Email: tk_valeria@bk.ru
Russian Federation, Томск

Е. С. Лютова

Национальный исследовательский Томский государственный университет

Email: tk_valeria@bk.ru
Russian Federation, Томск

Л. П. Борило

Национальный исследовательский Томский государственный университет

Email: tk_valeria@bk.ru
Russian Federation, Томск

Л. Н. Спивакова

Национальный исследовательский Томский государственный университет

Email: tk_valeria@bk.ru
Russian Federation, Томск

А. А. Бузаев

Национальный исследовательский Томский государственный университет

Email: tk_valeria@bk.ru
Russian Federation, Томск

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2. Fig. 1. IR spectra of samples after drying at 60 °C (a), after annealing at 600 °C (b)

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3. Fig. 2. Graph of Ca2+ and Mg2+ ions accumulation on the surface of samples after immersion in SBF-solution: 1 - sample TiO2-SiO2-P2O5/CaO, 2 - sample TiO2-SiO2-P2O5/La2O3, 3 - sample with the ratio TiO2-SiO2-P2O5/CaO : TiO2-SiO2-P2O5/La2O3 = 1 : 1

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4. Fig. 3. Microphotographs of samples (a-c) and distribution of elements along the line (d-e) after immersion in SBF-solution for 14 days: a, d - sample TiO2-SiO2-P2O5-P2O5/CaO; b, e - sample TiO2-SiO2-P2O2-P2O5/La2O3; c, f - sample with the ratio TiO2-SiO2-P2O2-P2O5/CaO : TiO2-SiO2-P2O5/La2O3 = 1 : 1

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