部分非矿物化导向皮层骨的X射线衍射研究,分析深度受控
Sergei Danilchenko1, Aleksei Kalinkevich1, Mykhailo Zhovner1
1Institute of Applied Physics, NASU, 58 Petropavlivska St., 40000, Sumy, Ukraine.
Heliyon
|July 10, 2023
概括
这项研究模拟了骨质疏松症的骨损失,使用了体外去矿化. 深度控制的X射线衍射 (XRD) 和SEM-EDX在酸性去矿化过程中揭示了骨酸的微结构变化,有助于骨质疏松症研究.
科学领域:
- 生物材料科学 生物材料科学
- 材料科学 材料科学 材料科学
- 生物物理学的生物物理.
背景情况:
- 骨质疏松症涉及骨质损失,其特点是脱矿化.
- 皮层骨去矿化不均,形成表面和过渡区.
- 了解这些区域的微观结构变化对于骨质疏松症研究至关重要.
研究的目的:
- 为了研究在体外去矿化过程中皮质骨中的微观结构变化.
- 为了评估深度控制的X射线衍射 (XRD) 使用CoKα辐射分析非矿物化骨的有效性.
- 开发一种快速,非破坏性的XRD方法,用于估计脱矿深度.
主要方法:
- 在实验室中使用HCl溶液去矿化皮质骨.
- 扫描电子显微镜与能量分散式X射线光谱学 (SEM-EDX) 用于层分析.
- 用CoKα辐射进行深度控制的X射线衍射 (XRD),用于微观结构分析.
主要成果:
- 通过SEM-EDX,在非矿物化和接口层中确定了Ca,P和Cl的度梯度.
- CoKα XRD允许在接口区内进行探测,揭示了改变的生物酸盐晶石尺寸和晶格微变形.
- 在去矿化过程中观察到晶体尺寸和微变形的非单调变化.
- XRD证实过渡区中仅存在微弱结晶的阿帕石.
- 提出了一种新的,快速的XRD方法来估计去矿化深度,并与SEM-EDX进行验证.
结论:
- 用CoKα辐射进行深度控制的XRD对于分析去矿化骨的微观结构变化是有效的.
- 这项研究提供了有关骨质疏松症的骨再吸收机制的见解.
- 一种新的,快速的XRD方法可以准确地估计骨组织中的脱矿深度.
更多相关视频
07:29Author Spotlight: Advanced Techniques for Characterizing Tissue Mineralization in Bone Regeneration Research
Published on: September 27, 2024
796
06:59Author Spotlight: An Economic and Efficient Method for Quantitative Evaluation of Bone Microarchitecture in a Murine Osteoporosis Model
Published on: September 8, 2023
2.5K
相关概念视频
01:10X-ray Diffraction of Biological Samples
3.9K
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
3.9K
02:18X-ray Crystallography
24.0K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
24.0K