Organic-inorganic interaction and the growth mechanism of hydroxyapatite crystals in gelatin matrices between 37 and 80 degrees C.

Journal of Materials Science. Materials in Medicine
Myung Chul ChangJunzo Tanaka

Abstract

The crystal development of hydroxyapatite[HAp] phase in gelatin[GEL] matrices was investigated in the temperature range 37 to 80 degrees C by using X-ray diffraction, scanning electron microscopy(SEM), thermoanalytical measurement(DT/TGA), Fourier-Transformed Infra-Red(FT-IR) spectroscopy, and transmission electron microscopy(TEM) with electron diffraction(ED). It was found that during the coprecipitation of apatite phase in GEL matrices and the next aging process the crystallites were formed and developed through the two reaction mechanisms of organic-inorganic interaction between apatite phase and GEL molecules, and thermodynamic reaction for the crystal growing. The analytical evidences showed that there was a definite competition between these two mechanisms with the reaction temperature. Below 50 degrees C the crystal development of HAp was greatly suppressed by the existence of the GEL molecules, indicating the heterogeneous nucleation by the supposed number of carboxyl groups in GEL. Above 50 degrees C the effective organic components as a template for the heterogeneous nucleation of apatite crystallites were greatly degraded and so more amount of inorganic ions could be favorably accredited on the preexisting crystallit...Continue Reading

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Aug 5, 2003·Biomaterials·Myung Chul ChangWilliam H Douglas
Sep 7, 2004·Journal of Materials Science. Materials in Medicine·M C ChangJ Tanaka

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Citations

Jun 15, 2007·Journal of Materials Science. Materials in Medicine·Myung Chul Chang, William H Douglas
Mar 12, 2008·Journal of Materials Science. Materials in Medicine·Myung Chul Chang
Feb 5, 2009·Journal of Biomaterials Science. Polymer Edition·Myung Chul ChangWilliam H Douglas
Aug 12, 2015·Journal of Functional Biomaterials·Sergey V Dorozhkin
Sep 2, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Myung Chul Chang, Ralph DeLong
Dec 19, 2007·Journal of Biomedical Materials Research. Part a·Rui YohTaiji Sohmura
Jan 27, 2017·Microscopy Research and Technique·Masanobu WakasaToshiyuki Isshiki
Apr 29, 2014·International Journal of Biological Macromolecules·Chi-Chang LinYesong Gu
Jan 1, 2012·Journal of Functional Biomaterials·Elnaz Ajami, Kondo-Francois Aguey-Zinsou
Oct 24, 2008·Arteriosclerosis, Thrombosis, and Vascular Biology·Linda L DemerYin Tintut
Nov 19, 2019·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Sergey V Dorozhkin
May 18, 2020·Journal of Biomedical Materials Research. Part a·Retno ArdhaniYasuhiko Tabata
Feb 28, 2007·Journal of Biomedical Materials Research. Part a·Wenguo CuiJie Weng
Jul 1, 2020·Frontiers in Chemistry·Zixin ZhangShanshan Xu

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