Abdel Reheem A M, Desouky Omar S, Selim Nabila S, Abdel-Hamid H M, El-Marakby Seham M
Radiation Physics Department, Radiation Applications Division, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt.
Sci Rep. 2025 Sep 24;15(1):32695. doi: 10.1038/s41598-025-19684-2.
In this study, bovine cortical bone was investigated under plasma treatment process to investigate the potential for improvements in their structural characteristics. The bone specimens were treatment with low pressure argon cold plasma at different treatment times; 15, 30, and 45 min. Various techniques such as X-ray diffraction, scanning electron microscopy, surface roughness testing and automatic LCR Bridge were utilized to study the plasma-induced modifications on the structural and dielectric properties of the bone. SEM images revealed the elimination of some outer atoms from the bone surface during the 30-minute plasma ablation process, leading to more noticeable grain size of hydroxyapatite. XRD measurements confirmed the obtained results as mentoring the changes in crystallite size and strain parameters. As the treatment time approached 45 min, crystallite size increased, along with surface roughness parameters and relaxation time. These findings contribute to a better understanding of the microstructural and morphological changes occurring on the bone surface during cold argon plasma treatment.
在本研究中，对牛皮质骨在等离子体处理过程中的情况进行了研究，以探讨改善其结构特征的可能性。对骨标本进行不同处理时间（15分钟、30分钟和45分钟）的低压氩冷等离子体处理。利用诸如X射线衍射、扫描电子显微镜、表面粗糙度测试和自动LCR电桥等各种技术来研究等离子体对骨的结构和介电性能的影响。扫描电子显微镜图像显示，在30分钟的等离子体烧蚀过程中，骨表面的一些外层原子被去除，导致羟基磷灰石的晶粒尺寸更加明显。X射线衍射测量结果证实了所得结果，表明微晶尺寸和应变参数发生了变化。随着处理时间接近45分钟，微晶尺寸增加，同时表面粗糙度参数和弛豫时间也增加。这些发现有助于更好地理解冷氩等离子体处理过程中骨表面发生的微观结构和形态变化。
