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Synthetic hydroxyapatite obtaining using three different methods and characterization to use it as bone substitute

机译：使用三种不同方法获得合成羟基磷灰石并表征其用作骨替代物

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摘要

The method by which to obtain Hydroxyapatite to be used as bone substitute should offer specific qualities such as, high purity, performance, low cost and has to be the following, bioactive, biocompatible, it has to have osteoconductivity and it has to bond directly to the bone. In this paper, synthetic HAp was prepared using 3 different methods reported in the literature as a route via sintering and precipitation, and subsequently characterized by atomic absorption spectrometry (AAS), molecular absorption spectrometry (UV-Vis), infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy X-ray (EDX). The route of synthesis of HAp precipitation gives better results, compared to the commercial standard sample and bovine bone, such as grain size which is of about 1 µm, molar ratio Ca/P of 1.7, high purity and crystallinity, while the results obtained via sintering show the presence of amorphous phases. The synthesis method using a wet precipitation of calcium nitrates and phosphates is practical and suitable for the immobilization of HAp on a metal substrate such as silicon, important for the use in dental and medical reconstructive surgery.
机译：获得用作骨替代物的羟基磷灰石的方法应具有特定的质量，例如高纯度，性能，低成本，并且必须具有以下特性：生物活性，生物相容性，必须具有骨导电性并且必须直接与骨头。在本文中，使用文献中报道的3种不同方法，通过烧结和沉淀法制备了合成HAp，然后通过原子吸收光谱（AAS），分子吸收光谱（UV-Vis），红外光谱（FTIR）， X射线衍射（XRD），扫描电子显微镜（SEM）和能量色散谱X射线（EDX）。与商业标准样品和牛骨相比，HAp沉淀的合成路线可提供更好的结果，例如粒径约为1 µm，Ca / P摩尔比为1.7，高纯度和结晶性，而通过烧结表明存在非晶相。使用硝酸钙和磷酸盐的湿沉淀的合成方法是实用的，并且适合于将HAp固定在诸如硅的金属基底上，这对于在牙科和医学重建手术中的使用很重要。

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