材料科学
傅里叶变换红外光谱
纳米棒
拉曼光谱
扫描电子显微镜
电介质
光谱学
分析化学(期刊)
微晶
核化学
吸收光谱法
纳米技术
化学工程
复合材料
光学
光电子学
化学
工程类
物理
量子力学
冶金
色谱法
作者
F. Y. Rajhi,I.S. Yahia,H. Y. Zahran,Mona Kilany
标识
DOI:10.1016/j.mtcomm.2020.101981
摘要
The nanoscale hydroxyapatite (HAp) is a significant material applied for bone tissue engineering in the human body. This study focuses on the impact of vanadium addition on nano-sized HAp synthesized by sol-gel/hydrothermal technique and microwave device. The as-prepared nanocomposites were analyzed by X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), Fourier-transformed infrared spectroscopy (FTIR), and Raman spectroscopy. The calculated crystallite size of the pure and V-HAp ranged from 15.73 nm to 20.77 nm, as supported by the XRD technique. The surface morphology of V-HAp samples is nanorods. Furthermore, the diffused reflectance helps to obtain the absorption spectra and the bandgap of the investigated samples. The dielectric constant and AC electrical conductivity are varied with the applied frequency and recorded at room temperature for HAp and different V-concentrations HAps. The gamma ray's absorption was also studied to consider the gamma attenuation of the tested samples using Cs-137 and Am-241 radioactive sources. The antimicrobial activity of the synthesized nanopowders was considered against pathogenic Gram-negative bacteria (P aeruginosa and Klebseilla sp), Gram-positive bacteria (Micrococcus sp and Bacillus subtilis), and yeast pathogen (Candida albicans). Therefore, vanadium-doped HAp nanostructured can be used as a multifunctional material vis microbial inhibitory and gamma radiation shielding materials.
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