20-22 May 2015
Asia/Bangkok timezone
The Centennial Celebration of General Relativity Theory and 80 Years of Thai Physics Graduate

Synchrotron X-ray Absorption Spectroscopy Study of Local Structure in Hydroxyapatite Doped by Strontium

21 May 2015, 13:00
3h 30m
Board: MNA-35
Poster presentation Material Physics, Nanoscale Physics and Nanotechnology Poster-3

Speaker

Mr Atipong Bootchanont (School of Physics, Institute of Science, and COE-NANOTEC-SUT on Advanced Functional Nanomaterials, Suranaree University of Technology, Nakhon Ratchasima, THAILAND 30000)

Description

Generally, the medical treatment of osteoporosis was used orally by strontium-base medicine because of its stimulative effect on bone formation. In this work, Hydroxyapatite-based bone (HAp) doped by Sr was investigated for the global structure by X-ray diffraction technique and the local structure by Synchrotron X-ray Absorption Spectroscopy technique. The Sr L$_3$-edge X-ray Absorption Near-Edge Structure (XANES) spectra were measured and compared with the simulated spectra. The results show that the local environment of Sr distribute on the different locations of Ca site in Hydroxyapatite material. The Sr was found to substitute on the two different Ca sites with the proportion around 70% in the calcium phosphate site (Ca1) and 30% in Ca2 site close to -OH group.

Primary author

Mr Atipong Bootchanont (School of Physics, Institute of Science, and COE-NANOTEC-SUT on Advanced Functional Nanomaterials, Suranaree University of Technology, Nakhon Ratchasima, THAILAND 30000)

Co-authors

Mrs Likit Temprom (Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002) Dr Narong Chanlek (Synchrotron Light Research Institute, Nakhon Ratchasima, THAILAND 30000) Dr Pimsiree Suwanna (Department of Materials Science, Faculty of Science, Kasetsart University, Bangkok, THAILAND 10900) Dr Pinit Kidkhunthod (Synchrotron Light Research Institute, Nakhon Ratchasima, THAILAND 30000) Dr Rattikorn Yimnirun (School of Physics, Institute of Science, and COE-NANOTEC-SUT on Advanced Functional Nanomaterials, Suranaree University of Technology, Nakhon Ratchasima, THAILAND 30000) Ms Sarochapat Sutikulsombat (Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen, THAILAND 40002)

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