模式组合法对大型密封冰柜厚冰层中金黄色葡萄球菌的杀菌效果和机理探索

IF 2.9 3区物理与天体物理 Q2 PHYSICS, APPLIED

Plasma Processes and Polymers Pub Date : 2024-01-23 DOI:10.1002/ppap.202300221

Min Chen, Dingxin Liu, Zifeng Wang, Jishen Zhang, Jiao Lin, Pengyu Zhao, Tianhui Li, Hao Zhang, Li Guo, Mingzhe Rong

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引用次数: 0

摘要

冷链运输是严重急性呼吸系统综合征冠状病毒 2 和其他微生物跨区域传播的重要途径。本研究采用模式组合法，通过混合 NOx 和 O3 模式排出的废气，对 1.138 立方米的冷冻室进行灭菌。混合气体可在 3 小时内有效灭活 10 毫米冰块中的金黄色葡萄球菌，明显优于 O3 气体。此外，混合气体的灭活效果可以深入冰层，与 O3 气体的表面效果形成鲜明对比。这种差异与强氧化性长寿命活性物种的渗透深度不同有关。这项研究验证了冷大气等离子体在实际冷链环境中的灭菌效果，这对遏制传染病传播至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Sterilization effect and mechanism exploration of a mode-combination method on Staphylococcus aureus in thick ice layers in a large sealed freezer

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Sterilization effect and mechanism exploration of a mode-combination method on Staphylococcus aureus in thick ice layers in a large sealed freezer

Cold-chain transport is a crucial cross-regional transmission pathway for severe acute respiratory syndrome coronavirus 2 and other microorganisms. In this study, the mode-combination method is adopted for sterilization in a 1.138 m³ freezer by mixing effluent gases of NO_x and O₃ mode air discharges. The mixed gas can effectively inactivate Staphylococcus aureus in 10 mm ice within 3 h, which significantly surpasses O₃ gas. Moreover, the inactivation effect of the mixed gas can penetrate deep into ice, contrasting with the surface effect of O₃ gas. This disparity is linked to the difference in penetration depth of strong oxidizing long-lived reactive species. This study validates the sterilization efficacy of cold atmospheric plasma in practical cold-chain environment, critical for curbing infectious disease transmission.

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来源期刊

Plasma Processes and Polymers 物理-高分子科学

CiteScore

6.60

自引率

11.40%

发文量

150

审稿时长

3 months

期刊介绍： Plasma Processes & Polymers focuses on the interdisciplinary field of low temperature plasma science, covering both experimental and theoretical aspects of fundamental and applied research in materials science, physics, chemistry and engineering in the area of plasma sources and plasma-based treatments.