Inhalation of bioaerosols has been linked to many health problems. Filter media impregnated with antimicrobial material can provide effective removal and inactivation of bioaerosols. In this study, fibres were spun on a substrate by centrifugal spinning, obtaining filter media denoted 5THY and THY. Thyme essential oil was used as an antimicrobial agent. For 5THY, the thyme essential oil was added to the polyacrylonitrile (PAN) solution, while for THY, it was sprayed onto the medium after the fibres had been produced. The THY medium presented a higher collection efficiency, compared to the substrate or 5THY, with efficiencies of 99% for microparticles and 58% for nanoparticles. Using the plaque assay method, THY provided the highest reductions of the bacteria Escherichia coli and Staphylococcus aureus, with efficiency of 99.999%. The findings demonstrated that filter media covered with spun fibres and containing thyme essential oil provided excellent antimicrobial action and filtration performance.

中文翻译：

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评价覆盖有纺丝纤维并含有具有抗菌性能的百里香精油的过滤介质

吸入生物气溶胶与许多健康问题有关。浸渍有抗菌材料的过滤介质可以有效去除和灭活生物气溶胶。在这项研究中，纤维通过离心纺丝在基材上纺丝，获得表示为 5THY 和 THY 的过滤介质。百里香精油被用作抗菌剂。对于 5THY，百里香精油被添加到聚丙烯腈 (PAN) 溶液中，而对于 THY，它是在生产纤维后喷洒到介质上。与底物或 5THY 相比，THY 介质具有更高的收集效率，微粒的效率为 99%，纳米粒子的效率为 58%。使用噬菌斑测定法，THY 对大肠杆菌和金黄色葡萄球菌的去除率最高，效率为 99.999%。