• 文献标题:   Nucleation and growth of brushite crystals on the graphene sheets applicable in bone cement
  • 文献类型:   Article
  • 作  者:   NOSRATI H, LE DQS, EMAMEHC RZ, PEREZ MC, BUNGER CE
  • 作者关键词:   graphene oxide, brushite, setting time, modeling, bone cement
  • 出版物名称:   BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO
  • ISSN:   0366-3175 EI 2173-0431
  • 通讯作者地址:  
  • 被引频次:   10
  • DOI:   10.1016/j.bsecv.2020.05.001 EA FEB 2022
  • 出版年:   2022

▎ 摘  要

Since recent research indicates that the addition of graphene increases the mechanical and biological properties of calcium phosphates simultaneously, graphene oxide (GO) was used in this research to enhance the properties of brushite cement. The main objective of this study is to investigate the mechanism of nucleation and growth of brushite crystals on GO sheets. Calcium nitrate tetrahydrate and diammonium hydrogenphosphate were used as calcium and phosphate precursors. The brushite chemical precipitation method on graphene sheets was used in this study and computer-assisted modeling was used to understand the process. The results of this study showed that the hybrid powders contained brushite and GO. Brushite crystals were grown after nucleation in proportion to the three main planes containing (020), (121), and (141). The final particles were plate shaped. The results of setting time tests showed that increasing the GO% decreases the setting time and this trend continues with an increasing amount of GO. The results of the mechanical evaluation showed that increasing the GO by up to 2% increased the mechanical properties and more than that decreased the mechanical properties. (C) 2020 SECV. Published by Elsevier Espana, S.L.U.