Department of Child Healthcare, Linyi Central Hospital, Yishui, Shandong Province 276400, PR China.
Nursing Department, Linyi Central Hospital, Yishui, Shandong Province 276400, PR China.
J Photochem Photobiol B. 2018 May;182:35-41. doi: 10.1016/j.jphotobiol.2018.03.005. Epub 2018 Mar 6.
The aim of the present study is to develop novel approach for the green synthesis of titanium oxide nanoparticles (TiO NPs) using Eichhornia crassipes extract and calcined at different temperatures for evaluate the wound healing activity in the femoral fracture. The synthesized TiO are formed different (plate and rod-like) nanostructures at various calcination temperatures. These samples were characterized by X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), Field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM). Microscopic studies of TiO NPs revealed that the synthesized TiO NPs are formed well-defined rod-like structures at 400 °C with size ranged from 200 nm to 500 nm. The characterized plate and rod-like TiO NPs are combined with human morphogenetic protein (HbMP) to improving its wound healing activity and osteoblast properties on femoral fractures. The biocompatibility was tested by using human bone marrow mesenchymal stem cells (BMSC) cells and antibacterial efficacy analyzed using human pathogenica bacteria Staphylococcus aureus and Escherichia coli through agar well diffusion assay. The green synthesized rod-like TiO NPs combined with HbMP has been exhibited effective bone fusion behaviors with biomechanical properties and also improved antibacterial activity against pathogenic bacteria. From this study results, it is suggested that green synthesized TiONPs could be used effectively in biomedical application.
本研究旨在开发一种使用凤眼蓝提取物绿色合成纳米二氧化钛(TiO 纳米粒子)的新方法,并在不同温度下煅烧,以评估其在股骨骨折中的愈合活性。合成的 TiO 在不同煅烧温度下形成不同的(板状和棒状)纳米结构。这些样品通过 X 射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、场发射扫描电子显微镜(FE-SEM)和透射电子显微镜(TEM)进行了表征。TiO NPs 的微观研究表明,在 400°C 下,合成的 TiO NPs 形成了尺寸在 200nm 到 500nm 之间的定义良好的棒状结构。表征的板状和棒状 TiO NPs 与人类形态发生蛋白(HbMP)结合,以提高其在股骨骨折中的愈合活性和成骨细胞特性。通过使用人骨髓间充质干细胞(BMSC)细胞进行生物相容性测试,并通过琼脂孔扩散法分析对人类病原菌金黄色葡萄球菌和大肠杆菌的抗菌效果。绿色合成的棒状 TiO NPs 与 HbMP 结合,表现出有效的骨融合行为,具有生物力学特性,并提高了对病原菌的抗菌活性。从这项研究结果来看,建议将绿色合成的 TiO NPs 有效地用于生物医学应用。