Antiviral Activity of SIO2–Polyphenol Composites Prepared Mechanochemically from Plant Raw Materials

Composites of SiO2 and polyphenols from plant raw materials and model composites based on amorphous SiO2 and dihydroquercetin and pyrocatechol were prepared by solid-state mechanochemistry. Results for the antiviral activities of these composites with respect to herpes simplex virus type 2 (HSV-2) and West Nile virus are presented and compared with those of several chemotherapeutics and chaga (Inonotus obliquus) extract.