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Issue 6, 2016
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Growth of strontium hydrogen phosphate/gelatin composites: a biomimetic approach

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Abstract

Recent research has focused on the crystal growth of strontium phosphates via different methods due to the bioactivity and biocompatibility of these materials with bone tissue. Here, we use a biomimetic method to synthesize strontium hydrogen phosphate/gelatin composites via single diffusion in gelatin. We compare the composite crystals with analytical-grade strontium hydrogen phosphate using infrared spectroscopy (IR), scanning electron microscopy (SEM), thermal gravimetric analysis, and X-ray diffraction. The IR spectra reveal that gelatin is incorporated into strontium hydrogen phosphate crystals due to CH2 and amide I vibrations. The SEM data exhibit arrow-like crystals and microspheres of strontium hydrogen phosphate with bundled nano-flakes and flower-like surface arrangements of crystals. Furthermore, we find that the thermal stability of the strontium hydrogen phosphate/gelatin composite crystals is higher than that of the analytical-grade strontium hydrogen phosphate. The ion concentration and the preparation method had only a small influence on the broadening of the X-ray Bragg reflections. Our study confirms that gelatin is a useful hydrogel for studying the crystallization of strontium hydrogen phosphate.

Graphical abstract: Growth of strontium hydrogen phosphate/gelatin composites: a biomimetic approach

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Publication details

The article was received on 16 Dec 2015, accepted on 25 Apr 2016 and first published on 26 Apr 2016


Article type: Paper
DOI: 10.1039/C5NJ03575A
Citation: New J. Chem., 2016,40, 5495-5500
  • Open access: Creative Commons BY license
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    Growth of strontium hydrogen phosphate/gelatin composites: a biomimetic approach

    M. P. Gashti, M. Stir and J. Hulliger, New J. Chem., 2016, 40, 5495
    DOI: 10.1039/C5NJ03575A

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