Aligned hydroxyapatite nano-crystal formation on a polyamide surface
| Autor: | Qiaoxia Lin, Weiyi Chen, Xiaojie Lian, Di Huang, Meng Yin, Yan Wei, Jingjing Du, Yinchun Hu, Yi Qin, Meiqing Guo |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Scanning electron microscope General Chemical Engineering Infrared spectroscopy 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention Crystallography X-ray photoelectron spectroscopy law Transmission electron microscopy Polyamide Crystallization 0210 nano-technology Bone regeneration High-resolution transmission electron microscopy |
| Zdroj: | RSC Advances. 7:43040-43046 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c7ra07182e |
| Popis: | Controlling the orientation of well-crystallized nano-hydroxyapatite (n-HA) remains a difficult task because of the complicated process of n-HA crystallization. In the present research, highly aligned n-HA arrays were fabricated on a polyamide matrix. The oriented n-HA crystals were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), X-ray photoelectric spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR). The mechanism of how these structures form was explored. The results show that the oriented n-HA arrays are formed on a calcium treated polyamide matrix. The diameter of the n-HA columns is about 47.41 ± 3.02 nm. The n-HA crystals grow vertically with the substrate and the length of the crystals is 613.423 ± 61.57 nm. Osteoblast-like MG63 cells were cultured on the nano-crystals in order to demonstrate the biocompatibility of these oriented n-HA crystals. The MTT assay suggests that the oriented n-HA crystals could promote cell proliferation. The overall results indicate the promising potential of oriented n-HA crystals for bone regeneration. |
| Databáze: | OpenAIRE |
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