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首页> 外文期刊>Bulletin of materials science >In vitro bioactivity studies of larnite and larnite/chitin composites prepared from biowaste for biomedical applications
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In vitro bioactivity studies of larnite and larnite/chitin composites prepared from biowaste for biomedical applications

机译：基于生物医学应用的稻瘟和小甲酸盐/甲壳素复合材料的体外生物活性研究

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Larnite (Ca$_2$SiO$_4$) was synthesized by the sola€“gel combustion process by using raw eggshell powder as a calcium source and urea as a fuel. The main focus of this work is to convert biowaste into a biomedical material ata low-processing temperature. X-ray diffraction (XRD) pattern confirms the phase purity of the larnite and Fourier transform infrared (FTIR) spectra confirms the presence of characteristic functional groups of larnite. Scanningelectron microscopy (SEM) image shows agglomerated particles with cauliflower-like morphology and energy dispersive X-ray spectroscopy (EDX) confirms the presence of the stoichiometric ratio of required elements. Atomicforcemicroscope (AFM) images reveal the presence of pores on the surface of spherical particles. Larnite/chitin composites were fabricated into scaffold with different ratios of bioceramic to biopolymer (70:30, 80:20) to investigatethe influence of the polymer content on the apatite formation ability in simulated body fluid (SBF) medium. XRDpattern and FTIR spectra of the scaffold immersed in SBF shows apatite deposition within 5 days. The deposition ofhydroxyapatite (HAP) on the scaffold surface increases with the increase in polymer content of the composite.
机译：通过使用生蛋壳粉作为钙源和尿素作为燃料，通过Sola€“凝胶燃烧过程合成了Larnite（CA $ _2 $ SIO $ SIO $ 4 $）。这项工作的主要焦点是将Biowastey转换为生物医学材料ATA低处理温度。 X射线衍射（XRD）图案证实了Larnite和傅里叶变换红外（FTIR）光谱的相纯度证实Larnite的特征官能团的存在。扫描电子显微镜（SEM）图像显示具有花椰菜状形态的附聚颗粒和能量分散X射线光谱（EDX）证实所需元件的化学计量比例的存在。 AtomicForcemicrocoper（AFM）图像显示球形颗粒表面上的孔隙的存在。用不同的生物聚合物（70:30,80:20）用不同比例制造Larnite / Chitin复合材料，以研究聚合物含量对模拟体液（SBF）培养基中的磷灰石形成能力的影响。浸入SBF中的支架的XRDPattern和FTIR光谱在5天内显示磷灰石沉积。随着复合材料的聚合物含量的增加，支架表面上的羟基磷灰石（HAP）的沉积增加。

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