Photocatalytic coatings for microbial disinfection

用于微生物消毒的光催化涂层

• 批准号: 566193-2021
• 负责人: Goh, MCynthia
• 金额: $ 2.19万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=719444
• 关键词: Photocatalytic; coatings; microbial; disinfection

COVID-19 has highlighted public concern with microbial transmission in high traffic areas with high-touch surfaces. In places like transit, classrooms and movie theatres where there is a high turnover of occupants, businesses clean and disinfect to prevent spread of disease so that people can be feel comfortable in resuming their normal lives. Typical disinfectants, like bleach and peroxide, are effective at killing microbes, but only while they are in contact, during the cleaning process.The goal of this project is to create continuous passive disinfection with a coating that remains active over a long period of time, so that microbes that are deposited on coated surfaces can be deactivated. The partnership with McRae Imaging is about developing a coating that is compatible with fabrics, as well as similar soft and flexible surfaces, that are deployed on seating covers. The disinfecting ability of the coating is based on photocatalysis. Photocatalysts work by breaking organic bonds in the presence of light.

COVID-19 凸显了公众对高人流量区域和高接触表面的微生物传播的担忧。 在交通、教室、电影院等人员流动频繁的地方，企业要进行清洁和消毒，以防止疾病传播，让人们能够放心地恢复正常生活。 典型的消毒剂，如漂白剂和过氧化物，可以有效杀死微生物，但只有在清洁过程中它们接触时才有效。该项目的目标是通过在很长一段时间内保持活性的涂层来创建连续的被动消毒，从而可以灭活沉积在涂层表面上的微生物。 与 McRae Imaging 的合作旨在开发一种与织物以及座椅套上类似的柔软且有弹性的表面兼容的涂层。 涂层的消毒能力基于光催化作用。 光催化剂通过在光存在下破坏有机键来发挥作用。