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Cold Spray Technology for Fast SARS-CoV-2 Disinfection on Public Surfaces: A Major Disruption in the COVID-19 Transmission Chain

用于公共表面快速 SARS-CoV-2 消毒的冷喷雾技术：COVID-19 传播链的重大破坏

基本信息

批准号：
555084-2020
负责人：
Jahed, Hamid
金额：
$ 3.64万
依托单位：
University of Waterloo
依托单位国家：
加拿大
项目类别：
Alliance Grants
财政年份：
2020
资助国家：
加拿大
起止时间：
2020-01-01 至 2021-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=705770
关键词：
Cold Spray Technology Fast SARS

项目摘要

Canada Public Health has identified three main mechanisms for transmission of COVID-19 disease, one of which is touching surfaces contaminated by SARS-CoV-2 virus. Recently, the Center for Disease Control (CDC) showed that when SARS-CoV-2 virus is applied to copper surfaces, it decays at a rate one order of magnitude faster than when in contact with stainless steel, and an extra two fold faster than when in contact with plastic. Most shared public surfaces are made of metals (e.g., steel, aluminum) and plastics (e.g., PVC, composites, rubber). Handrails, seats, doorknobs, and door handles are examples of common shared surfaces in public transportation, parks, and malls that are touched by hand. If the disinfection rate of the surface is increased, the chance of transmission of active viruses is reduced considerably. As the nation moves to reopen during the current pandemic, the very real possibility of a compound effect between a resurgence of COVID-19 and seasonal influenza could be devastating and needs to be addressed immediately. While alternative antiviral materials may be considered to replace public surfaces in the long term, a near-term solution for existing common shared surfaces is of paramount importance. In this research we will develop the technology for onsite coating of existing public surfaces with antiviral copper alloy powder through cold spray coating; a technology that can be delivered immediately and broadly.

加拿大公共卫生部门确定了新冠肺炎传播的三种主要机制，其中一种是接触被SARS-CoV-2病毒污染的表面。最近，疾病控制中心(CDC)发现，当SARS-CoV-2病毒应用于铜表面时，其腐烂速度比与不锈钢接触时快一个数量级，比与塑料接触时快两倍。大多数共享公共表面由金属(例如，钢、铝)和塑料(例如，聚氯乙烯、复合材料、橡胶)组成。扶手、座椅、门把手和门把手是公共交通、公园和商场中用手触摸的常见共享面。如果提高表面的消毒率，活性病毒传播的机会就会大大减少。随着美国在当前疫情期间采取行动重新开放，新冠肺炎卷土重来和季节性流感之间产生复合效应的可能性非常真实，可能是毁灭性的，需要立即解决。虽然从长远来看，可以考虑使用替代的抗病毒材料来取代公共表面，但对于现有公共共享表面的短期解决方案是至关重要的。在这项研究中，我们将开发一种通过冷喷涂在现有公共表面现场涂覆抗病毒铜合金粉末的技术；这是一种可以立即广泛交付的技术。