Inhibition of biofilm formation on polystyrene substrates by atmospheric pressure plasma polymerization of siloxane-based coatings,Plasma Processes and Polymers

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Inhibition of biofilm formation on polystyrene substrates by atmospheric pressure plasma polymerization of siloxane-based coatings
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2021-09-14 , DOI: 10.1002/ppap.202100097
Rodolfo Múgica‐Vidal ₁ , Elisa Sainz‐García ₁ , Ignacio Muro‐Fraguas ₁ , Ana Sainz‐García ₁ , Ana González‐Marcos ₁ , María López ₂ , Beatriz Rojo‐Bezares ₂ , Paula Toledano ₂ , Yolanda Sáenz ₂ , Fernando Alba‐Elías ₁

Affiliation

Biofilms pose important economic and health risks in biomedical applications and in food industries. In this study, coatings that reduce the biofilm formation of Pseudomonas aeruginosa on polystyrene cell culture plates are deposited by plasma polymerization of (3-aminopropyl)triethoxysilane using an atmospheric pressure plasma jet system at three different power levels. Surface characterizations and quantification of biofilm formation during 1 week after deposition suggest that the higher concentration of oxygenated carbon groups on the coated samples than on uncoated ones can induce higher levels of oxidative stress in the bacteria in contact with the coatings. This causes an initial overproduction of extracellular polymeric substances that can avoid further bacterial attachment and biofilm formation at later cycles of biofilm development.

中文翻译：

通过硅氧烷基涂料的常压等离子体聚合抑制聚苯乙烯基材上生物膜的形成

生物膜在生物医学应用和食品工业中构成重要的经济和健康风险。在这项研究中，减少铜绿假单胞菌生物膜形成的涂层聚苯乙烯细胞培养板上的细胞通过（3-氨基丙基）三乙氧基硅烷的等离子体聚合使用大气压等离子体喷射系统以三种不同的功率水平沉积。沉积后 1 周内生物膜形成的表面特征和量化表明，涂层样品上含氧碳基团的浓度高于未涂层样品，可在与涂层接触的细菌中诱导更高水平的氧化应激。这会导致细胞外聚合物的初始过量产生，从而可以避免在生物膜发展的后期循环中进一步的细菌附着和生物膜形成。

更新日期：2021-09-14

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