정전분무 열분해법에 의한 나노분말의 제조 및 하이드록시 아파타이트 형성능력 평가
Preparation of electrostatic spray pyrolysis derived nano powder and hydroxyapatite forming ability
0
조회
0
다운로드
0
인용
0
참고문헌
초록
본 연구에서는 새로운 나노 분말 제조방법 중의 하나인 정전분무 열분해법을 이용하여 칼슘 포스페이트 나노 분말을 제조하였다. 정전 분무된 분말은 공기 중에서 400oC로 30분간 열처리하여 고상화하였다. 결정화된 분말의 하이드록시 아파타이트 형성능력을 평가하기 위하여 Eagle's minimum essential medium solution(MEM)을 사용하였으며, MEM 용액에 침전된 후의 분말의 특성평가를 위하여 X-선 회절 분석법, 전계 방사 주사형 전자 현미경, 에너지 분산 X-선 분광계 및 퓨리에 변환 적외선 분광계를 사용하여 분석을 행하였다. 비정질 구조를 가진 나노 분말은 MEM 용액에 15일 침전 후, 분말의 표면에 유도된 하이드록시 아파타이트 결정을 확인할 수 있었다.
Abstract
Electrostatic spray pyrolysis, a novel fabrication technique, has been used in this study to prepare calcium phosphate nano powders. Final annealing was done at 400oC for 30 min in air. The hydroxyapatite - forming ability of the annealed powder has been evaluated in Eagle's minimum essential medium solution (MEM). X-ray diffraction analysis, field emission - scanning electron microscope, energy dispersive X-ray spectroscope, and Fourier transform infrared spectroscope were used to characterized the annealed powders after immersion in MEM. The powder with an amorphous structure induced hydroxyapatite formation on their surfaces after immersion for 15 days.
참고문헌 (18)
- S. Nakamura, "Extended bioactivity in the proximity of hydroxyapatite ceramic surfaces induced by polarization charges", 61 (2002)
- Y. Suetsugu, "Crystal growth of carbonate apatite using a CaCO3 flux", 10 (1999)
- V.P. Orlovskii, "Structural transition and dielectric characteristics of high-purity hydroxyapatite", 32(6) (1996)
- B. Kim, "Calcium-phosphate formation on a nanocrystalline zirconia layer", 44(4) (2004)
- J. Oh, "Biomimetic formation of calcium phosphate on thermally oxidized cp-titanium surfaces", 29 (2003)
- K. Hwang, "Sol-gel derived hydroxyapatite films on alumina substrates", 123 (2000)
- Y. Lim, "Functionally graded Ti", HAP coatings on Ti-6Al-4V obtained by chemical solution deposition, 2002, pp.28, ~
- W.L. Suchanek, "Mechanochemical-hydrothermal synthesis of carbonated apatite powders at room temperature", 23(3) (2002)
- N. Uekawa, "Synthesis of rutile and anatase TiO2 nanoparticles from Ti-peroxy compound aqueous solution with polyols", 18(4) (2003)
- K.L. Choy, "Processing-structure-property of nanocrystalline materials produced using novel and cost-effective ESAVD-based methods", C16 (2001)
- Main functioning modes? J, "？Electrostatic spraying of liquids", pp.~25 (1990)
- Y. Lim, "Calcium phosphate films deposited by electrostatic spray deposition and an evaluation of their bioactivity", 6(3) (2005)
- B. Kim, "Preparation of TiO2 layers by spin coating-pyrolysis and in-vitro formation of calcium phosphate", 5(1) (2004)
- B.C. Yang, "The order of calcium and phosphate ion deposition on chemically treated titanium surfaces soaked in a aqueous solution", 47 (1999)
- J. Pan, "Variation of oxide films on titanium induced by osteoblast-like cell culture and the influence of an H2O2 pretreatment", 40 (1998)
- A, "？Stoichiometry of Na+ and CO32- containing hydroxyapatite obtained by the hydrolysis of monetite? Inorg" (1993)
- J. Oh, "Preparation of nanocrystalline ZrO2 film by using a zirconium naphthenate and evaluation of calcium phosphate forming ability", 39(9) (2002)
- P. Peltola, "Calcium phosphate onduction by sol-gel-derived titania coatings on titanium substrates in vitro", 41 (1998)