Role of Sr2+ concentration on the microstructure of Sr-substituted hydroxyapatite single-crystal microtubes with hexagonal cross-section
| Autor: | Sheng-yun Huang, Yu-peng Lu, Gui-yong Xiao, Wei-li Xu, Yin-chuan Wang |
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| Rok vydání: | 2021 |
| Předmět: |
inorganic chemicals
010302 applied physics Strontium Morphology (linguistics) Materials science Hexagonal crystal system Process Chemistry and Technology Doping chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Cross section (geometry) chemistry Chemical engineering Nanofiber 0103 physical sciences Materials Chemistry Ceramics and Composites 0210 nano-technology Single crystal |
| Zdroj: | Ceramics International. 47:20725-20730 |
| ISSN: | 0272-8842 |
| Popis: | Strontium (Sr) can be introduced into hydroxyapatite (HA) crystals and stimulate new bone formation. In this study, the single-crystalline Sr-substituted HA microtubes with hexagonal cross-sections are synthesized under the regulation of Sr2+ via the oleic acid-assisted solvothermal method. The morphology of the as-prepared products changes from ultralong flexible nanofibers to hexagonal microtubes with the increasing Sr/(Sr + Ca) ratio. Microtubes can be formed when a small amount of Sr is doped into HA, with the optimal substitution ratio of Sr2+ being ~6%. The inner and outer diameters of the synthetic Sr-substituted HA microtubes are about 1.6 and 2.3 μm, respectively. Moreover, the effects of Sr2+ dopping on the formation process and mechanism of microtubes were discussed. |
| Databáze: | OpenAIRE |
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