2017 Fiscal Year Final Research Report
Analysis of Biomaterials by Spatially Resolved X-ray Fluorescence and X-ray Absorption Fine Structure
Project/Area Number |
15K20426
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Prosthodontics/ Dental materials science and
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Research Institution | Tokyo Medical and Dental University |
Principal Investigator |
WADA Takahiro 東京医科歯科大学, 大学院医歯学総合研究科, 助教 (10632317)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Keywords | 歯科理工学 / X線吸収微細構造 / 蛍光X線分析 / 歯科材料 / 生体材料 / 表面 / 界面 / 触媒 |
Outline of Final Research Achievements |
In dental care, it is essential to restore the shape and function of the tooth by artificial materials. There always exists interfaces. For examples, dental adhesive is used to connect the dental material and tooth. Information of dentin - adhesive interface is extremely important to obtain good durability and adhesive strength and their understanding. However, conventional methods have some limitations, such as destructive. In this study, we combined two nondestructive analysis methods, X-ray fluorescence method which shows the element distribution of sample and X-ray absorption fine structure method which can recognize the electronic state of specific atoms, the surrounding atoms, the bond coordination number, and the bond distance and developed a method of spatially resolved analysis using micro X-ray beam. We tested it using micro sensor with known structure. As results, we found the cause of sensor deactivation. Then, we tried to apply it to biomaterials.
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Free Research Field |
歯科理工学
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