文献类型：期刊文献

英文题名：Feasibility study of reusing surgical masks and evaluation of the effectiveness of different disinfection methods

作者：Li, Junliang[1,2];Wang, Bowen[3];Yang, Wenhua[3];Zhou, Jianhua[3];Gao, Jiale[3];Yan, Jun[3,4]

第一作者：Li, Junliang;李菊莲

通信作者：Yan, J[1]

机构：[1]Gansu Prov Hosp, Dept Gen Surg, Lanzhou 730030, Peoples R China;[2]Gansu Univ Chinese Med, Sch Clin Med 1, Lanzhou 730030, Peoples R China;[3]Lanzhou Univ, Sch Clin Med 1, Lanzhou 730030, Peoples R China;[4]Lanzhou Univ, Dept Gen Surg, Affiliated Hosp 1, Lanzhou 730030, Peoples R China

第一机构：Gansu Prov Hosp, Dept Gen Surg, Lanzhou 730030, Peoples R China

通信机构：[1]corresponding author), Lanzhou Univ, Sch Clin Med 1, Lanzhou 730030, Peoples R China.

年份：2024

卷号：355

外文期刊名：MATERIALS LETTERS

收录：;EI(收录号：20234414980188);Scopus(收录号：2-s2.0-85174958988);WOS:【SCI-EXPANDED(收录号:WOS:001100472400001)】；

基金：This research was supported by the Lanzhou Science and Technology Bureau project (2020-XG-3, 2020-XG-44) and the Research Fund project of Gansu Provincial Hospital (22GSSYC-1, 22GSSYB-14) .

语种：英文

外文关键词：Surgical masks; Reuse; Ultraviolet radiation; Biomaterials; Polymers

摘要：This study assessed various disinfection methods' impact on surgical mask reusability amid the high demand and limited supply of medical surgical masks during the respiratory disease pandemic. Volunteers wore masks for 4 h, and masks were disinfected using methods including moist heat, dry heat, ultraviolet (UV) radiation, alcohol soaking, washing machine cleaning, ultrasonic cleaning, or microwave disinfection. Key indicators measured included filtration efficiency, mask pressure, electrostatic charge, tensile strength, and blood penetration. Scanning electron microscopy and 16S bacterial DNA testing were used to evaluate fiber changes and disinfection effectiveness. After three disinfection cycles using any method, masks met Chinese standard YY0469-2011 requirements for filtration efficiency, mask pressure, strength, and blood penetration. However, non-oily particle filtration efficiency significantly decreased with moist heat, alcohol soaking, or machine washing. Bacterial filtration efficiency decreased with dry heat, alcohol soaking, or machine washing. All disinfection methods caused structural changes, particularly with dry heat, ultrasonic cleaning, and microwave disinfection. UV radiation effectively sterilized masks while maintaining filtration performance, making it the preferred method for mask reuse in emergencies.