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Fe-doped beta-tricalcium phosphate; crystal structure and biodegradable behavior with various heating temperature

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2020, 30(6), pp.244-250
  • DOI : 10.6111/JKCGCT.2020.30.6.244
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : November 23, 2020
  • Accepted : November 26, 2020
  • Published : December 31, 2020

YOOKYUNGHYEON 1 Hyeon Jin Kim 1 Sun, woogyeong 1 Seog-Young Yoon 1

1부산대학교

Accredited

ABSTRACT

β-Tricalcium phosphate (β-TCP, Ca3(PO4)2) is a kind of biodegradable calcium phosphate ceramics with chemicaland mineral compositions similar to those of bone. It is a potential candidate for bone repair surgery. To improve thebioactivity and osteoinductivity of β-TCP, various ions doped calcium phosphate have been studied. Among them, Iron is atrace element and its deficiency in the human body causes various problems. In this study, we investigated the effect of Feions on the structural variation, degradation behavior of β-TCP. Fe-doped β-TCP powders were synthesized by the coprecipitationmethod, and the heat treatment temperature was set at 925 and 1100℃. The structural analysis was carried out by Rietveld refinement using the X-ray diffraction results. Fe ions existed in a different state (Fe2+ or Fe3+) with different heat treatment temperatures, and the substitution sites (Ca-(4) and Ca-(5)) also changed with temperature. The degradation rate was fastest at Fe-doped β-TCP with heated at 1100℃. The cell viability behavior was also enhanced with the substitution of Fe ions. Therefore, the substitution of Fe ion has accelerated the degradation of β-TCP and improved the biocompatibility. It could be more utilized in biomedical devices.

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