Shape-controlled synthesis of F-substituted hydroxyapatite microcrystals in the presence of Na2EDTA and citric acid

Journal of Colloid and Interface Science
Deli JiangShengchun Dang

Abstract

We present a facile strategy for the shape-controlled synthesis of F-substituted hydroxyapatite (FHAp) microcrystals based upon using a combination of Na(2)EDTA and citric acid (CA). Novel, well-defined FHAp microcrystals of various shapes, such as hexagonal disks with predominant (0 0 0 1) faces, hexagonal shuttles, hexagonal prisms, icosahedrons, and hexagonal microrods with tunable aspect ratios, were fabricated. In particular, FHAp hollow microcrystals with tunable shapes were fabricated directly without using any additional template. The central features of our approach are the use of both Na(2)EDTA and CA as two distinct chelating reagents and the use of substitution ions (F(-)) itself as a growth inhibitor for the FHAp crystals. F(-) ions were found to play a critical role in the formation of hexagonally shaped FHAp microcrystals, and in the one-pot formation of hollow microcrystals, which relies on the addition order of F(-) ions in the synthesis.

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Citations

Apr 16, 2013·Acta Biomaterialia·Mehdi Sadat-ShojaiAhmad Jamshidi
Aug 1, 2012·Materials Science & Engineering. C, Materials for Biological Applications·Chengzhen WeiZhaodong Nan
Sep 27, 2015·Colloids and Surfaces. B, Biointerfaces·Chao-Fan DaiXiao-Dong Li
Feb 14, 2013·Chemistry, an Asian Journal·Yueyue WangJiang Chang
Jun 17, 2016·Scientific Reports·Hao LinYueli Zhang
Sep 27, 2016·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Kranthi Kumar GanguSreekantha B Jonnalagadda
Dec 21, 2017·Chemical Society Reviews·Chao QiPeng Huang
Jan 27, 2019·Scientific Reports·Junjun TanMinfang Chen
Oct 2, 2021·Advanced Materials·Yang LiuHongjie Zhang

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