| Budget Amount *help |
¥44,850,000 (Direct Cost: ¥34,500,000、Indirect Cost: ¥10,350,000)
Fiscal Year 2014: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2013: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2012: ¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
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| Outline of Final Research Achievements |
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 and collagen molecular deformation. X-ray diffraction experimental procedure and Raman spectroscopy method were 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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