The application of molybdenum disulfide nanosheets decorated with silver nanoparticles for antibacterial activity

IF 3.2 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS Journal of Sol-Gel Science and Technology Pub Date : 2025-02-17 DOI:10.1007/s10971-025-06696-7

Laleh Sayad Arbabi, Majid Azarang, M. Sookhakian, Wan Jefrey Basirun

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Abstract

This study focuses on the synthesis of molybdenum disulfide (MoS₂) nanosheets through a straightforward hydrothermal process, followed by their decoration with silver (Ag) nanoparticles using ammonia (NH₃) and glucose (C₆H₁₂O₆). The resulting nanocomposite was thoroughly characterized using various analytical techniques, including XRD, Raman spectroscopy, TEM, HR-TEM, FE-SEM, EDX, element mapping, XPS, AFM, and BET analysis. The antimicrobial efficacy of the Ag&MoS₂ nanocomposite (0D/2D) was evaluated using MIC, MBC, and disk diffusion susceptibility assays in comparison to the antibiotic ampicillin. Notably, the Ag&MoS₂ combination demonstrated significant antibacterial activity against Gram-negative bacteria. Specifically, Escherichia coli exhibited the highest efficacy with a 73.02% reduction, while Streptococcus mutans showed the lowest efficacy at 0.05%, primarily due to the physical damage generated by the nanocomposite.

Graphical Abstract

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二硫化钼纳米片与银纳米颗粒装饰在抗菌活性方面的应用

本研究的重点是通过水热法合成二硫化钼（MoS2）纳米片，然后用氨（NH3）和葡萄糖（C6H12O6）修饰银（Ag）纳米片。利用XRD、拉曼光谱、TEM、HR-TEM、FE-SEM、EDX、元素映射、XPS、AFM和BET分析等多种分析技术对所得纳米复合材料进行了全面表征。采用MIC、MBC和盘片扩散敏感性试验，比较Ag&；MoS2纳米复合材料（0D/2D）与抗生素氨苄西林的抗菌效果。值得注意的是，Ag&；MoS2组合对革兰氏阴性菌具有显著的抗菌活性。具体来说，大肠杆菌的效果最高，降低了73.02%，而变形链球菌的效果最低，降低了0.05%，这主要是由于纳米复合材料产生的物理损伤。图形抽象

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来源期刊

Journal of Sol-Gel Science and Technology 工程技术-材料科学：硅酸盐

CiteScore

4.70

自引率

4.00%

发文量

280

审稿时长

2.1 months

期刊介绍： The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.