Disinfection of N95 masks using UV-C LED (COVID-19)

使用 UV-C LED 对 N95 口罩进行消毒 (COVID-19)

• 批准号: 549988-2020
• 负责人: Gagnon, Graham
• 金额: $ 2.8万
• 依托单位: Dalhousie University
• 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=701530
• 关键词: Disinfection; N95; masks; using; UV

On 11 March 2020, the World Health Organization declared the novel severe acute respiratory syndrome coronavirus 2 (SARSCoV2) outbreak a pandemic. The rate of spread of COVID-19 is rapidly progressing around the globe and the increasing demand for effective personal protective equipment (PPE) is outpacing availability. Amid the foreseeable depletion of single-use disposable PPE, there is a growing international shortage of N95 masks. Given supply chain challenges, methods to repurpose N95 masks are urgently needed. UV light has the potential to disinfect masks and support their reuse. In particular, UV light emitted from light emitting diodes (UV-C LEDs) shows specific promise due to its adaptability. Dr. Gagnon and Stoddart from Dalhousie will lead a multi-disciplinary team in collaboration with researchers from the Nova Scotia Health Authority (NSHA), AquiSense Technologies and LuminUltra Technologies to develop a comprehensive disinfection strategy for N95 masks. This strategy includes: (i) development of a UV-C LED disinfection protocol for N95 masks that can be rapidly employed by NSHA to repurpose N95 masks, (ii) development of a rapid UV-C LED disinfection validation protocol for N95 masks using rapid biomass indicator technologies that can be used by NSHA for quality assurance and control, and (iii) pilot deployment of a UV-C LED reactor that can be used by NSHA for on-site disinfection of N95 masks.

2020年3月11日，世界卫生组织宣布新的严重急性呼吸综合征冠状病毒2型(SARSCoV2)爆发为大流行。新冠肺炎在全球的传播速度很快，人们对有效个人防护装备的需求越来越大，供不应求。在可预见的一次性个人防护用品耗尽的情况下，N95口罩的国际短缺日益严重。考虑到供应链的挑战，迫切需要重新调整N95口罩用途的方法。 紫外线有可能对口罩进行消毒，并支持口罩的重复使用。特别是，由发光二极管(UV-C LED)发出的紫外光由于其适应性而显示出特殊的前景。来自Dalhousie的Gagnon博士和Stoddart博士将领导一个多学科团队，与新斯科舍省卫生局(NSHA)、AquiSense Technologies和LlightUltra Technologies的研究人员合作，为N95口罩制定全面的消毒策略。这一战略包括：(I)制定N95口罩的UV-C LED消毒方案，NSHA可以迅速利用该方案重新调整N95口罩的用途；(Ii)利用NSHA可用于质量保证和控制的快速生物量指示器技术，制定N95口罩的快速UV-C LED消毒验证方案；以及(Iii)试行部署可供NSHA用于现场消毒N95口罩的UV-C LED反应器。