Effectiveness of the Nanosilver/TiO-Chitosan Antiviral Filter on the Removal of Viral Aerosols.

The precaution of airborne transmission of viruses, such as influenza, SARS, MERS, and COVID-19, is essential for reducing infection. In this study, we applied a zero-valent nanosilver/titania-chitosan (nano-Ag/TiO-CS) filter bed, whose broad-spectrum antimicrobial efficacy has been proven previously, for the removal of viral aerosols to minimize the risk of airborne transmission. The photochemical deposition method was used to synthesize the nano-Ag/TiO-CS antiviral material.

Effective disinfection of airborne microbial contamination in hospital wards using a zero-valent nano-silver/TiO -chitosan composite.

A novel antimicrobial composite of zero-valent silver nanoparticles (AgNPs), titania (TiO ), and chitosan (CS) was prepared via photochemical deposition of AgNPs on a CS-TiO matrix (AgNPs@CS-TiO ). Electron microscopy showed that the AgNPs were well dispersed on the CS-TiO , with diameters of 6.69-8.