Antibacterial properties of reduced graphene oxide fibers fabricated by hydrothermal method

IF 5.9 3区 工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY Journal of Industrial and Engineering Chemistry Pub Date : 2024-06-28 DOI:10.1016/j.jiec.2024.06.038
Lili Wang, Wei Mu, Yufeng Liu, Xin Wang, Xianliang Zheng
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Abstract

The antibacterial activity of reduced graphene oxide fibers (rGOFs) fabricated by a one-step dimensionally confined hydrothermal technique was investigated on both Gram-positive and Gram-negative models of bacteria in this study. The surface morphology, microstructure, and chemical composition of the as-prepared rGOFs were determined using scanning electron microscopy (SEM), X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. SEM images showed the fiber to have an average diameter of 46.6 ± 0.53 μm, composed of rGO nanosheets with numerous sharp edges. XPS and Raman spectroscopy confirmed the presence of -bonded carbon and structural defects in the samples. Antibacterial properties of rGOFs were tested and analyzed using agar well diffusion, colony counting method, SEM observation, and reactive oxygen species generation. The excellent broad-spectrum antibacterial ability of rGOFs is attributed to the physicochemical properties and unique surface morphological features of the samples, which could facilitate the development of rGOFs-based biomaterial for various biomedical and nano-technological applications such as a promising antibacterial agent or an implant/scaffold for nerve tissue engineering and regeneration.

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水热法制备的还原氧化石墨烯纤维的抗菌性能
本研究考察了通过一步式尺寸限制水热技术制备的还原氧化石墨烯纤维(rGOFs)对革兰氏阳性和革兰氏阴性细菌模型的抗菌活性。使用扫描电子显微镜(SEM)、X 射线衍射、傅立叶变换红外光谱、X 射线光电子能谱(XPS)和拉曼光谱测定了制备的 rGOFs 的表面形态、微观结构和化学成分。扫描电子显微镜图像显示,纤维的平均直径为 46.6 ± 0.53 μm,由具有许多尖锐边缘的 rGO 纳米片组成。XPS 和拉曼光谱证实了样品中存在键合碳和结构缺陷。采用琼脂井扩散法、菌落计数法、扫描电镜观察法和活性氧生成法对 rGOFs 的抗菌性能进行了测试和分析。rGOFs 卓越的广谱抗菌能力归功于样品的理化性质和独特的表面形态特征,这有助于开发基于 rGOFs 的生物材料,用于各种生物医学和纳米技术应用,如前景广阔的抗菌剂或神经组织工程和再生的植入物/支架。
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来源期刊
CiteScore
10.40
自引率
6.60%
发文量
639
审稿时长
29 days
期刊介绍: Journal of Industrial and Engineering Chemistry is published monthly in English by the Korean Society of Industrial and Engineering Chemistry. JIEC brings together multidisciplinary interests in one journal and is to disseminate information on all aspects of research and development in industrial and engineering chemistry. Contributions in the form of research articles, short communications, notes and reviews are considered for publication. The editors welcome original contributions that have not been and are not to be published elsewhere. Instruction to authors and a manuscript submissions form are printed at the end of each issue. Bulk reprints of individual articles can be ordered. This publication is partially supported by Korea Research Foundation and the Korean Federation of Science and Technology Societies.
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