Izgis Hursima, Ilhan Elif, Kalkandelen Cevriye, Celen Emrah, Guncu Mehmet Mucahit, Turkoglu Sasmazel Hilal, Gunduz Oguzhan, Ficai Denisa, Ficai Anton, Constantinescu Gabriel
Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul 34722, Turkey.
Department of Bioengineering, Faculty of Engineering, Marmara University, Istanbul 34722, Turkey.
Nanomaterials (Basel). 2022 Sep 1;12(17):3040. doi: 10.3390/nano12173040.
In this research, as an alternative to chemical and physical methods, environmentally and cost-effective antimicrobial zinc oxide nanoparticles (ZnO NP) were produced by the green synthesis method. The current study focuses on the production of ZnO NP starting from adequate precursor and aqueous root extracts (ginger). The produced ZnO NP was loaded into electrospun nanofibers at different concentrations for various tissue engineering applications such as wound dressings. The produced ZnO NPs and ZnO NP-loaded nanofibers were examined by Scanning Electron Microscopy (SEM) for morphological assessments and Fourier-transform infrared spectrum (FT-IR) for chemical assessments. The disc diffusion method was used to test the antimicrobial activity of ZnO NP and ZnO NP-loaded nanofibers against three representatives strains, (Gram-negative bacteria), (Gram-positive bacteria), and Candida albicans (fungi) microorganisms. The strength and stretching of the produced fibers were assessed using tensile tests. Since water absorption and weight loss behaviors are very important in tissue engineering applications, swelling and degradation analyses were applied to the produced nanofibers. Finally, the MTT test was applied to analyze biocompatibility. According to the findings, ZnO NP-loaded nanofibers were successfully synthesized using a green precipitation approach and can be employed in tissue engineering applications such as wound dressing.
在本研究中,作为化学和物理方法的替代方案,采用绿色合成法制备了具有环境效益和成本效益的抗菌氧化锌纳米颗粒(ZnO NP)。当前研究聚焦于从适当的前驱体和姜的水根提取物出发制备ZnO NP。将制备的ZnO NP以不同浓度负载到电纺纳米纤维中,用于伤口敷料等各种组织工程应用。通过扫描电子显微镜(SEM)对制备的ZnO NPs和负载ZnO NP的纳米纤维进行形态学评估,通过傅里叶变换红外光谱(FT-IR)进行化学评估。采用纸片扩散法测试ZnO NP和负载ZnO NP的纳米纤维对三种代表性菌株(革兰氏阴性菌)、(革兰氏阳性菌)和白色念珠菌(真菌)微生物的抗菌活性。使用拉伸试验评估制备纤维的强度和拉伸性能。由于吸水性和失重行为在组织工程应用中非常重要,因此对制备的纳米纤维进行了溶胀和降解分析。最后,应用MTT试验分析生物相容性。根据研究结果,采用绿色沉淀法成功合成了负载ZnO NP的纳米纤维,可用于伤口敷料等组织工程应用。