Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Improvement of Calcium Phosphate Forming Ability of Titanium Implant by Thermal Oxidation Method

열산화법에 의한 티타늄 임플란트의 인산칼슘 결정의 형성 능력 증진

  • Hwang, Kyu-Seog (School of Automotive and Mechanical Engineering and Institute of Manufacturing and Automation System, Nambu University) ;
  • An, Jun-Hyung (School of Automotive and Mechanical Engineering and Institute of Manufacturing and Automation System, Nambu University) ;
  • Lee, Seon-Ok (School of Automotive and Mechanical Engineering and Institute of Manufacturing and Automation System, Nambu University) ;
  • Yun, Yeon-Hum (School of Automotive and Mechanical Engineering and Institute of Manufacturing and Automation System, Nambu University) ;
  • Kang, Bo-An (School of Automotive and Mechanical Engineering and Institute of Manufacturing and Automation System, Nambu University) ;
  • Oh, Jeong-Sun (Department of Chemistry, College of Natural Science, Chosun University) ;
  • Kim, Sang-Bok (School of Automotive and Mechanical Engineering and Institute of Manufacturing and Automation System, Nambu University)
  • 황규석 (남부대학교 자동차기계공학부 생산 자동화 연구소) ;
  • 안준형 (남부대학교 자동차기계공학부 생산 자동화 연구소) ;
  • 이선옥 (남부대학교 자동차기계공학부 생산 자동화 연구소) ;
  • 윤연흠 (남부대학교 자동차기계공학부 생산 자동화 연구소) ;
  • 강보안 (남부대학교 자동차기계공학부 생산 자동화 연구소) ;
  • 오정선 (조선대학교 화학과) ;
  • 김상복 (남부대학교 자동차기계공학부 생산 자동화 연구소)
  • Published : 2002.01.01
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Abstract

Titanium oxide film was deposited on the commercially pure titanium (cp-Ti) by thermal oxidation method for its medical application. The cp-Ti disks were cleaned and then heat-treated at the temperatures of 500, 550, 600, 650, and 700${\circ}C$, respectively, for 10 min in air or Ar. To test the ability of calcium phosphate formation, the specimens were immersed in the Eagle's minimum essential medium solution at 36.5${\circ}C$ for 15 days. The morphology and chemical composition of the surfaces before and after soaking were analyzed by using FE-SEM and EDS. The in-vitro formation of carbonated calcium phosphate on the thin films containing nano-sized $TiO_2$ crystals was identified.

티타늄 임플란트의 표면을 열산화법을 이용하여 티타늄의 표면 위에 생체활성을 갖는 $TiO_2$ 박막을 생성시켜 다양한 의료분야의 응용 가능성을 검토하였다. 시판되고 있는 순수한 티타늄 디스크를 세척 공정을 거친 후, 공기와 아르곤 분위기에서 500, 550, 600, 650, 700${\circ}C$의 온도로 10분간 각각 열산화 처리를 실시하였다. 열처리된 시편의 인산칼슘 결정의 형성 능력을 시험하기 위하여 36.5${\circ}C$의 Eagle's minimum essential medium 용액에서 15일 동안 침적시험을 행하였다. 침적하기 전과 후의 시편의 표면 형상과 표면 조성을 Field Emission-Scanning Electron Microscopy(FE-SEM)와 Energy Dispersive X-ray Spectrometry(EDS)로 각각 분석하였다. In vitro 시험에서 미세한 $TiO_2$ 결정이 생성된 박막의 표면에는 탄소가 함유된 인산칼슘 결정이 생성됨을 확인하였다.

Keywords

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