The present invention relates to silica aerogels with a high to very high loading (55-90% w/w) of encapsulated biocidal and/or biorepellant compounds and very low thermal conductivity and to methods of making and using such aerogels in anti-fouling compositions, which are especially suitable for coatings (marine paints, coatings, sealants, lacquers, wood protection or similar controlled leaching systems) that are naturally exposed to humid conditions and/or water, including sea water, and thus prone to fouling.

The present invention relates to silica aerogels with a high to very high loading (55-90% w/w) of encapsulated biocidal and/or biorepellant compounds and very low thermal conductivity and to methods of making and using such aerogels in anti-fouling compositions, which are especially suitable for coatings (marine paints, coatings, sealants, lacquers, wood protection or similar controlled leaching systems) that are naturally exposed to humid conditions and/or water, including sea water, and thus prone to fouling.

Disclosed herein are compositions (e.g., sprays, paints, etc.) that comprise antimicrobial zeolite nanoparticles. Also provided are hemostatic compositions comprising zeolite nanoparticles, dryer sheets comprising zeolite nanoparticles, and textiles comprising zeolite nanoparticles. Also disclosed are compositions (e.g., sprays) that include a binder polymer to improve coating adherence. In some cases, the zeolite nanoparticles can further comprise an optical tracer (e.g., a fluorophore) associated with the zeolite nanoparticles. The optical tracer can be interrogated to confirm presence of the zeolite nanoparticles (or a coating comprising the zeolite nanoparticles) on a surface. Also provided are methods of forming viricidal coatings using compositions that comprise zeolite nanoparticles dispersed in a carrier.

Disclosed herein are compositions (e.g., sprays, paints, etc.) that comprise antimicrobial zeolite nanoparticles. Also provided are hemostatic compositions comprising zeolite nanoparticles, dryer sheets comprising zeolite nanoparticles, and textiles comprising zeolite nanoparticles. Also disclosed are compositions (e.g., sprays) that include a binder polymer to improve coating adherence. In some cases, the zeolite nanoparticles can further comprise an optical tracer (e.g., a fluorophore) associated with the zeolite nanoparticles. The optical tracer can be interrogated to confirm presence of the zeolite nanoparticles (or a coating comprising the zeolite nanoparticles) on a surface. Also provided are methods of forming viricidal coatings using compositions that comprise zeolite nanoparticles dispersed in a carrier.

Compositions and articles comprising a non-woven matrix for use as anti-microbial filters are provided. In some embodiments, the non-woven matrix comprises nanofibers suitable for capturing a droplet comprising a microbe (e.g. a virus particle). In some embodiments, the non-woven matrix comprises a biocide suitable for reducing propagation and/or inactivating a microbe.

Compositions and articles comprising a non-woven matrix for use as anti-microbial filters are provided. In some embodiments, the non-woven matrix comprises nanofibers suitable for capturing a droplet comprising a microbe (e.g. a virus particle). In some embodiments, the non-woven matrix comprises a biocide suitable for reducing propagation and/or inactivating a microbe.

A modified bentonite of biostatic and biocidal properties, the modified bentonite comprising intercalated bentonite grains, wherein each of the intercalated bentonite grains is intercalated with at least two different metal ions selected from the group consisting of silver ions (Ag.sup.+) and dipositive metal ions (Me.sup.2+).

A modified bentonite of biostatic and biocidal properties, the modified bentonite comprising intercalated bentonite grains, wherein each of the intercalated bentonite grains is intercalated with at least two different metal ions selected from the group consisting of silver ions (Ag.sup.+) and dipositive metal ions (Me.sup.2+).

A modified bentonite of biostatic and biocidal properties, the modified bentonite comprising intercalated bentonite grains, wherein each of the intercalated bentonite grains is intercalated with at least two different metal ions selected from the group consisting of silver ions (Ag.sup.+) and dipositive metal ions (Me.sup.2+).

Multipurpose product with prolonged antimicrobial action comprising at least one quaternary ammonium and copper nanoparticles in non-oxidized metallic state (Cu.sup.0), where copper nanoparticles in non-oxidized metallic state (Cu.sup.0) are found nucleated in at least one quaternary ammonium. A method for producing a multipurpose product with prolonged antimicrobial action.