Characterization of apatite from human teeth via XRD, FT-IR and TGA techniques

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Pankaew P., Hoonnivathana E., Sujinnapram S., Thamaphat K., Limsuwan P., Naemchanthara K.

ผู้เผยแพร่: Trans Tech Publications

ปีที่เผยแพร่ (ค.ศ.): 2012

Volume number: 506

หน้าแรก: 90

หน้าสุดท้าย: 93

จำนวนหน้า: 4

ISBN: 9783037854068

นอก: 1022-6680

eISSN: 1662-8985

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84860821586&doi=10.4028%2fwww.scientific.net%2fAMR.506.90&partnerID=40&md5=d67d7c59b79ab10b95a4e4de2fba1ad0

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

Human teeth (HT) are natural composites which consist of nano hydroxyapatite (HAp) arranged in lamellae and bound to collagen. In present study, prepared HT powders with different ages were characterized by X-Ray Diffraction (XRD), Fourier transform infrared (FT-IR) and thermogravimetric anlysis (TGA) techniques. HT at age ranges of 1-10, 11-20, 21-30, 31-40, 41-50 and 51-60 years old were selected for tests. To prepare samples, human teeth were washed in boiling water for 1 h and left in 1 M KOH solution for 6 h to remove any organic material. After HT samples were cleaned with ultrasonic in ethanol, they were then finely grounded using agate mortar. The results from XRD indicate that the major diffraction peaks of all samples with different ages were very closely identified to that of stoichiometric HAp. All HT powders were found to be nanocrystalline structure. Furthermore, it was found that the decrease in HAp crystallinity seem to increase with higher age of 31-40 years old. To investigate chemical structure confirmed by FT-IR, All HT powders showed the band positions and function groups, which are similar to that of HAp. CO 3 2- group found in chemical structure indicates the structure of carbonated apatite. TGA results were found that the increase of weight loss seem to increase with higher age. ฉ (2012) Trans Tech Publications.

คำสำคัญ

Carbonated apatite, Human teeth, X-Ray Diffraction