Khorsand Kheirabad Atefeh, Pan Xuefeng, Long Siwen, Kochovski Zdravko, Zhou Shiqi, Lu Yan, McInerney Gerald, Yuan Jiayin
Department of Materials and Environmental Chemistry (MMK) Stockholm University Stockholm Sweden.
Department for Electrochemical Energy Storage Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner-Platz 1 Berlin Germany.
Nano Sel. 2022 Jan;3(1):227-232. doi: 10.1002/nano.202100069. Epub 2021 Jun 1.
Herein, we report a waterproof anti-SARS-CoV-2 protective film prepared by spray-coating of an aqueous colloidal dispersion of poly(ionic liquid)/copper (PIL/Cu) composite nanoparticles onto a substrate. The PIL dispersion was prepared by suspension polymerization of 3-dodecyl-1-vinylimdiazolium bromide in water at 70°C. The copper acetate salt was added into the PIL nanoparticle dispersion and in situ reduced into copper nanoparticles anchoring onto the PIL nanoparticles. Despite being waterborne, the PIL in bulk is intrinsically insoluble in water and the formed coating is stable in water. The formed surface coating by PIL/copper composite nanoparticles was able to deactivate SARS-CoV-2 virions by 90.0% in 30 minutes and thus may effectively prevent the spread of SARS-CoV-2 through surface contact. This method may provide waterborne dispersions for a broad range of antivirus protective surface coatings for both outdoor and indoor applications.
在此，我们报告了一种防水抗SARS-CoV-2保护膜，该膜通过将聚（离子液体）/铜（PIL/Cu）复合纳米颗粒的水性胶态分散体喷涂到基材上制备而成。PIL分散体是通过在70°C下于水中悬浮聚合3-十二烷基-1-乙烯基咪唑溴化物制备的。将醋酸铜盐加入到PIL纳米颗粒分散体中，并原位还原为锚定在PIL纳米颗粒上的铜纳米颗粒。尽管是水性的，但本体中的PIL本质上不溶于水，并且形成的涂层在水中稳定。由PIL/铜复合纳米颗粒形成的表面涂层能够在30分钟内使SARS-CoV-2病毒粒子失活90.0%，因此可以有效地防止SARS-CoV-2通过表面接触传播。该方法可为广泛的户外和室内应用的抗病毒保护表面涂层提供水性分散体。
