Suppr超能文献

大气空气等离子体和空气中声超声对细菌生物膜的灭活效果。

Inactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms.

机构信息

Food Chemistry and Technology Department, Teagasc Food Research Centre, Ashtown, Dublin, Ireland.

School of Biology and Environmental Science, University College Dublin, Dublin, Ireland.

出版信息

Sci Rep. 2021 Jan 27;11(1):2346. doi: 10.1038/s41598-021-81977-z.

Abstract

Biofilms are complex microbial communities that present serious contamination risks to our environment and health. In this study, atmospheric air plasma and airborne acoustic ultrasound technology were applied to inactivate Escherichia coli and Listeria innocua biofilms. Both technologies were efficient in controlling, or completely inactivating, the target bacterial biofilms. Viability and metabolic assays, along with microscopy analysis, revealed that atmospheric air plasma and airborne acoustic ultrasound damaged both the bacterial biofilm cells and its structural integrity. Scanning electron microscopy images highlighted the disruption of the biofilms and pore formation in bacterial cells exposed to both the plasma and acoustic treatments. Elevated reactive oxygen and nitrogen species in bacterial cells treated with atmospheric air plasma, demonstrated their primary role in the observed bacterial inactivation process. Our findings provide potential antimicrobial strategies to combat bacterial biofilms in the food and healthcare sectors.

摘要

生物膜是复杂的微生物群落,对我们的环境和健康构成严重的污染风险。在这项研究中,大气压空气等离子体和空气传播声超声技术被应用于灭活大肠杆菌和无害李斯特菌生物膜。这两种技术都能有效地控制或完全灭活目标细菌生物膜。活性和代谢测定以及显微镜分析表明,大气压空气等离子体和空气传播声超声破坏了细菌生物膜细胞及其结构完整性。扫描电子显微镜图像突出显示了暴露于等离子体和声处理的生物膜的破坏以及细菌细胞中的孔形成。用大气压空气等离子体处理的细菌细胞中活性氧和氮物种的增加,证明了它们在观察到的细菌失活动力学中的主要作用。我们的发现为食品和医疗保健领域中对抗细菌生物膜提供了潜在的抗菌策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/69f2/7840748/e7e9a0ffd567/41598_2021_81977_Fig1_HTML.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验