Mechanochemical synthesis of zinc-apatitic calcium phosphate and the controlled zinc release for bone tissue engineering
- Publication Type:
- Journal Article
- Drug Development and Industrial Pharmacy, 2016, 42 (4), pp. 595 - 601
- Issue Date:
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© 2015 Taylor & Francis. In this study, in order to control zinc (Zn)-release from calcium phosphate (CaP), the crystalline forms of CaP-containing Zn were modified by wet ball milling and/or heat treatment. The CaP (CaO:CaHPO4:ZnO=7:20:3, molar ratio) was ground in a ball mill with the addition of purified water, and the ground products were heated to 400 °C and 800 °C. The physicochemical properties of these ground products were measured by powder X-ray diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy and energy-dispersive X-ray spectroscopy. Zn release characteristics from the samples were evaluated using a dissolution tester. The results of XRD and IR suggested that the structures of the starting materials were destroyed after 2.5 h of grinding, and new apatite-like amorphous solid containing Zn was generated. The Zn-release from the ground products was markedly suppressed after 2.5 h of grinding.
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