首页> 外文期刊>International journal of nanomechanics science and technology >SYNTHESIS OF MICRO- AND NANOSIZED BIORESORBING SILICON-SUBSTITUTED TRICALCIUM PHOSPHATES FOR BONE TISSUE ENGINEERING AND THEIR BIOLOGICAL SAFETY USING MESENCHYMAL STEM CELLS
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SYNTHESIS OF MICRO- AND NANOSIZED BIORESORBING SILICON-SUBSTITUTED TRICALCIUM PHOSPHATES FOR BONE TISSUE ENGINEERING AND THEIR BIOLOGICAL SAFETY USING MESENCHYMAL STEM CELLS

机译:纳米和纳米生物吸附硅取代的磷酸三钙用于骨组织工程的合成及其使用间充质干细胞的生物安全性

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摘要

Silicon-substituted tricalcium phosphates have been developed by the precipitation method and heterophase mechanic activation using tetraethoxysilan as a source of silicate ions. The phase composition was established to depend on the silicate concentration: the apatite phase is formed at 0.09 wt.% silicate and Whitlockite is formed when the silicate concentration increases 10 times - up to 0.90 wt.%. The inhomogeneity and surface roughness of the material increase with the silicate concentration. Increasing the content of silicon in synthesized TCPs increases their thermal stability. Ceramics from silicon-substituted TCPs does not manifest cytotoxicity, while the cell spreading on the material surfaces increases with the degree of surface development, displaying the maximum value for the TCP sample with Si 0.1 substitution. The TCP ceramics containing 0.9 wt.% silicate ions characterize a pronounced antibacterial activity to E. Coli strain, whereas ceramics from TCPs do not manifest antibacterial activity.
机译:硅取代的磷酸三钙已通过沉淀法和异相机械活化而开发,使用四乙氧基硅烷作为硅酸根离子源。确定相组成取决于硅酸盐的浓度:磷灰石相以0.09重量%的硅酸盐形成,而硅酸盐浓度在硅酸盐浓度增加10倍至0.90重量%时形成。材料的不均匀性和表面粗糙度随硅酸盐浓度的增加而增加。合成TCP中硅含量的增加会增加其热稳定性。用硅取代的TCP制成的陶瓷没有细胞毒性,而在材料表面扩散的细胞随表面发育程度的增加而增加,显示了用Si 0.1取代的TCP样品的最大值。含有0.9wt。%硅酸根离子的TCP陶瓷对大肠杆菌菌株具有明显的抗菌活性,而来自TCP的陶瓷则没有抗菌活性。

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    Federal State Budgetary Scientific Institution "A. A. Baikov Institute of Metallurgy and Material Science", Russian Academy of Sciences, Russia;

    Institute of Mechanics, Federal State Budgetary Higher Educational Institution "M. V. Lomonosov Moscow State University", Moscow, Russia;

    Federal State Budgetary Scientific Institution "A. A. Baikov Institute of Metallurgy and Material Science", Russian Academy of Sciences, Russia;

    Federal State Budgetary Scientific Institution "A. A. Baikov Institute of Metallurgy and Material Science", Russian Academy of Sciences, Russia;

    Federal State Budgetary Scientific Institution "Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences", Russia;

    Federal State Budgetary Scientific Institution "A. A. Baikov Institute of Metallurgy and Material Science", Russian Academy of Sciences, Russia;

    Federal State Budgetary Scientific Institution "Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences", Russia;

    Federal State Budgetary Scientific Institution "Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences", Russia;

    Federal State Budgetary Scientific Institution "G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms", Russia;

    Federal State Budgetary Scientific Institution "A. A. Baikov Institute of Metallurgy and Material Science", Russian Academy of Sciences, Russia;

    Institute of Applied Mechanics, Russian Academy of Sciences, Moscow, Russia;

    Federal State Budgetary Institution "Academician V. I. Kulakov Scientific Center of Obstetrics, Gynecology and Perinatology", Ministry of Health of the Russian Federation, Moscow, Russia;

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  • 正文语种 eng
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  • 关键词

    tricalrium phosphate ceramics; silicon-substituted; biocompatibility;

    机译:磷酸三钙陶瓷;硅取代的;生物相容性;

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