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实在需要帮忙啊，万分感谢啊。谢谢谢谢。感激不尽
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However, the obtaining of glass–ceramics whichcombine bioactivity and magnetic properties, (in the proper range to be used in hyperthermia) is not an easytask. The inclusion of Fe seems to diminish the bioactivity. On the other hand, the sol–gel method isan inadequate way to obtain glass containing Fe because this element is segregated forming non-magnetic precipitates,fundamentally a-Fe2O3. As the melting and rapid cooling method allows Fe containing glasses to beobtained, this had to be the method which assures the Fe presence and, after adequate treatment, the appearanceof magnetic nuclei in the material. This material could be used as a glass or, after a heat treatment, as a magnetic glass–ceramic. This option will hinder the bioactive properties. For this reason we think that thebest solution would be the synthesis of a biphasic material, containing a sol–gel-derived bioactive glass,previously studied by our group [8], and which has a very high carbonatehydroxyapatite growth kinetics.Therefore, the biphasic material will contain a highly bioactive material (sol–gel-derived glass) and anotherone with adequate magnetic properties (glass or glass– ceramic). This has been the aim of this work. |
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