Efficacy of antimicrobial and anti-viral coated air filters to prevent the spread of airborne pathogens.
Efficacy of antimicrobial and anti-viral coated air filters to prevent the spread of airborne pathogens.
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DOI：
10.1038/s41598-022-06579-9
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发表时间：
2022-03-09
影响因子：
4.6
通讯作者：
de Cogan F
中科院分区：
文献类型：
--
作者：
Watson R;Oldfield M;Bryant JA;Riordan L;Hill HJ;Watts JA;Alexander MR;Cox MJ;Stamataki Z;Scurr DJ;de Cogan F
COVID-19大流行证明了控制空气传播的呼吸道病原体传播的机制的真实的需求。因此，防止病原体传播疾病已成为公众意识的最前沿。这带来了对优先清洁空气的新技术的日益增长的需求。在这项研究中，我们报告了新型生物杀灭剂处理过的过滤器的功效及其对细菌，真菌和病毒的抗菌活性。本文报道的抗微生物过滤器显示出在与过滤器接触后在15分钟内杀死病原体，如白色念珠菌、大肠杆菌和MRSA，并在30秒内破坏SARS-CoV-2病毒颗粒。通过空气流速测试、光学显微镜和SEM，显示过滤器保持其结构和过滤功能。除此之外，过滤器显示出极其耐用，并在产品的整个使用寿命内保持抗菌活性。最后，该过滤器已在英国铁路网络上进行了现场试验，在减少空调系统中微生物物种的负担方面表现出出色的功效。
The COVID-19 pandemic has demonstrated the real need for mechanisms to control the spread of airborne respiratory pathogens. Thus, preventing the spread of disease from pathogens has come to the forefront of the public consciousness. This has brought an increasing demand for novel technologies to prioritise clean air. In this study we report on the efficacy of novel biocide treated filters and their antimicrobial activity against bacteria, fungi and viruses. The antimicrobial filters reported here are shown to kill pathogens, such as Candida albicans, Escherichia coli and MRSA in under 15 min and to destroy SARS-CoV-2 viral particles in under 30 s following contact with the filter. Through air flow rate testing, light microscopy and SEM, the filters are shown to maintain their structure and filtration function. Further to this, the filters are shown to be extremely durable and to maintain antimicrobial activity throughout the operational lifetime of the product. Lastly, the filters have been tested in field trials onboard the UK rail network, showing excellent efficacy in reducing the burden of microbial species colonising the air conditioning system.
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