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用于抗微生物表面的表面固定碳纳米材料

L Giraud¹, O Marsan¹, E Dague²

¹CIRIMAT, Université Toulouse 3 Paul Sabatier, CNRS, INP Toulouse, Toulouse, France. emmanuel.flahaut@univ-tlse3.fr.

|August 22, 2024

概括

石墨烯氧化物和氧化碳纳米管在表面固定时表现出抗菌性质,与碳纳米管悬浮不同. 这项研究为开发新型抗菌材料开辟了可能性.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
微生物学微生物学

背景情况:

碳纳米材料 (CNM) 在液体悬浮中表现出抗菌性质.
关于将CNM抗菌活性转移到材料表面的研究有限.
对抗微生物应用的CNM表面功能化的研究至关重要.

研究的目的:

评估在表面上固定碳纳米材料 (CNM) 的抗菌和抗病毒功效.
为了比较双壁碳纳米管 (DWCNTs) 和少层石墨烯 (FLG) 在非氧化和氧化形式的性能.
探索CNM涂层表面对抗细菌和病毒感染的潜力.

主要方法:

使用空气刷喷雾沉积方法将CNM在基板上.
对抗菌活性被测试对抗 Pseudomonas aeruginosa 和金黄色葡萄球菌.
在手术口罩上对SARS-CoV-2进行了抗病毒活性评估.

主要成果:

固定的DWCNTs没有保持对P. aeruginosa.悬浮物中观察到的适度抗菌作用.
石墨烯氧化物在结到时,对P. aeruginosa表现出强大的抗菌活性.
氧化DWCNT在表面定时表现出对黄金色杆菌的抗菌作用;没有发现显著的抗病毒活性.

结论:

特定CNM的表面定,如石墨烯氧化物和氧化DWCNTs,可以赋予常见材料抗菌性质.
防腐剂的有效性取决于它们的形式和应用方法 (悬浮与固定).
这项研究为开发使用CNM的新型抗菌表面提供了基础.

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