| Co-Investigator(Kenkyū-buntansha) |
SASAKI Naoki 北海道大学, 大学院・理学研究院, 教授 (40142202)
SHIRATO Hiroki 北海道大学, 大学院・医学研究科, 教授 (20187537)
HURUSAKA Michihiro 北海道大学, 大学院・工学研究院, 教授 (60156966)
TODOH Masahiro 北海道大学, 大学院・工学研究院, 准教授 (10314402)
FUJISAKI Kazuhiro 北海道大学, 大学院・工学研究院, 助教 (90435678)
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| Budget Amount *help |
¥48,100,000 (Direct Cost: ¥37,000,000、Indirect Cost: ¥11,100,000)
Fiscal Year 2010: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2009: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2008: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2007: ¥20,540,000 (Direct Cost: ¥15,800,000、Indirect Cost: ¥4,740,000)
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| Research Abstract |
Bone shows a hierarchical structure from a nano scale of hydroxyapatite crystal and collagen molecular to a macro scale of cortical and cancellous bone. This work proposed a new method of detecting stress of tissue level using the information of HAp crystal deformation. X-ray diffraction (XRD) experimental procedure was developed to measure the characteristics of hierarchical structure. Some structural parameters were introduced to represent these characteristics. Also, the XRD method was applied to detect residual stress in bone, and the stress was observed at various regions in animal extremities.
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