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Nanotextures of composites based on the interaction between hydroxyapatite and cellulose Gluconacetobacter xylinus |
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| Authors: | D P Romanov A K Khripunov Yu G Baklagina A V Severin N V Lukasheva D A Tolmachev V K Lavrent’ev A A Tkachenko N A Arkharova V V Klechkovskaya |
| Affiliation: | 1. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, nab. Makarova 2, St. Petersburg, 199034, Russia 2. Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol’shoi pr. 31, St. Petersburg, 199004, Russia 3. Moscow State University, Moscow, 119991, Russia 4. St. Petersburg State University, St. Petersburg, 199034, Russia 5. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333, Russia |
| Abstract: | Organic-inorganic composite materials with different nanotextures have been prepared using three methods based on two nanosized and biocompatible compounds—cellulose Gluconacetobacter xylinus (CGX) and hydroxyapatite Ca5(PO4)3OH (HA). The structure of the initial components and their composites has been studied using the methods of X-ray diffraction, electron microscopy, and computer simulation. During the combined aggregation of aqueous HA and CGX suspensions, the phenomenon of their adsorption, in the process of which the axis c of HA crystals is oriented parallel to the plane (?110) of CGX microfibrillas, was observed. By varying the quantitative ratio of the components and the methods of introducing HA into composites, it is possible to obtain a wide spectrum of materials for medical practice. |
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