1. Synthesis of oriented hydroxyapatite crystals: Effect of reaction conditions in the presence or absence of silk sericin
- Author
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Cai, Yurong, Mei, Danping, Jiang, Tian, and Yao, Juming
- Subjects
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SERICIN , *CHEMICAL reactions , *HYDROXYAPATITE , *NANOCOMPOSITE materials , *MICROSTRUCTURE , *ORGANIC synthesis , *X-ray diffraction , *BIOMINERALIZATION - Abstract
Abstract: The purpose of this study was to investigate the effect of silk sericin (SS) on the morphology and crystallinity of hydroxyapatite (HAp) crystals synthesized at the pH 7.4–12 and 50°C via a biomimetic method. Using X-ray diffraction (XRD), transmission electron microscope (TEM) and high-resolution transmission electron microscope (HRTEM), it was revealed that a homogeneous assembly could be obtained in the presence of SS, which held a highly ordered microstructure and poor crystallinity. But in the absence of SS, an oriented aggregate could be prepared at 50°C and pH 10, which held more confused crystal lattice lines. The results proved that the biomimetic structure of HAp could be constructed under the controlled reaction conditions, which may offer a new clue on the understanding of the process of biomineralization. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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