激光产生的超声波冲击波作为一种替代方法,以找到不同的骨特性
1Department of Physics, College of Science, Al-Nahrain University, Jadriya, Baghdad, Iraq. ner_ner2@yahoo.com.
Lasers in medical science
|June 15, 2023
概括
非破坏性激光测试 (NDLT) 准确地测量了骨的机械特性. 这种无害的技术提供了一个精确的,具有成本效益的替代方法,用于分析传统的生物材料,如羊牙和肋骨.
科学领域:
- 生物材料科学 生物材料科学
- 材料工程 材料工程 材料工程
- 生物物理学的生物物理.
背景情况:
- 生物材料需要先进的表征来开发合成类似物.
- 了解骨的机械和结构性质对于生物医学应用至关重要.
- 寻求非破坏性测试方法来补充或取代传统的破坏性技术.
研究的目的:
- 评估非破坏性激光测试 (NDLT) 用于表征生物材料的物理性质.
- 为了将NDLT结果与羊牙和肋骨的经典方法 (微拉伸和微硬度) 进行比较.
- 评估NDLT作为骨分析的准确,经济有效和无害替代品的适用性.
主要方法:
- 使用纳秒 Nd:YAG 激光的 NDLT 应用于 1 岁羊的牙和肋骨.
- 激光诱导冲击探 (LSP) 原理被用来分析冲击波速度和峰值压力.
- 研究了高分辨率光学显微镜图像,以分析激光诱导的影响.
- 结果与经典的微拉伸和维克斯硬度测试进行了比较.
主要成果:
- NDLT为峰值压力 (3.1 GPa牙,4.1 GPa肋骨) 和粒子速度 (752 m/s牙,962 m/s肋骨) 提供了准确的测量.
- 通过NDLT获得的模值为13.3 GPa (牙) 和8.7 GPa (肋骨).
- NDLT的结果与经典方法有很好的一致性,验证了其精度和准确性.
结论:
- NDLT是一种可行的,非破坏性的替代方法,用于确定骨的声学和机械特性.
- 该技术在准确性,成本效益和非侵入性方面具有优势.
- 在未来对各种生物材料进行表征方面,NDLT具有显著的潜力.
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