Abstract: A first subject of the present invention has an antiviral formulation with metallic copper particles in an unoxidized form and having a median particle diameter inferior or equal to 200 nm, graphene oxide or reduced graphene oxide, and a bonding matrix material. A second subject of the invention has an antiviral filtering material with a layer of textile and at least one layer of an antiviral coating comprising metallic copper particles in an unoxidized form and having a median particle diameter inferior or equal to 200 nm, graphene oxide or reduced graphene oxide, and a bonding matrix into which both metallic copper particles and graphene oxide or reduced graphene oxide are anchored. The invention also concerns methods of preparation of the antiviral formulation and of the antiviral filtering material. Finally, the invention includes an antiviral face mask with a layer of textile coated with the antiviral formulation.

Abstract: The present invention relates to a modular system of closed photobioreactors, intended for indoor operation with LED lighting, in an uninterrupted and completely automated manner, with continuous monitoring of process variables, and feedback control of the CO2 and nutrients, of water temperature along the entire route of the photobioreactor, allowing maximum use of the indoor space where the system is arranged.