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US 12,213,991 B2Granted
Preparations for controlled-release of hypochlorous acid
AssigneeWiab Water Innovation AB
InventorGeir Hermod Almås
Life of this patent
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Abstract
Provided are anti-microbial compositions that include an aqueous solution of hypochlorous acid encapsulated in a nanoparticle that allows for controlled release of hypochlorous acid. Also provided are methods of making and using such compositions.
Claims8
A method of making an anti-microbial composition comprising an aqueous solution of hypochlorous acid encapsulated in a nanoparticle, the method comprising the steps of:
- mixing together in water in a chamber from which air has been purged a compound that generates a proton (H+) in water and a compound that generates a hypochlorite anion (OCl−) in water, thereby to produce an air-free aqueous solution of hypochlorous acid;
- and
- encapsulating the air-free aqueous solution of hypochlorous acid and an anti-metabolic agent selected from a group consisting of zinc, copper, and silver in a nanoparticle.
A method of making an anti-microbial composition comprising an aqueous solution of hypochlorous acid encapsulated in a nanoparticle, the method comprising the steps of:
- producing an aqueous solution of hypochlorous acid by performing in an air-free environment and under pressure the steps of:
- introducing hydrochloric acid (HCl) to a flow of water;
- turbulently mixing the HCl with the flowing water in a first mixing device from which air has been purged;
- introducing sodium hypochlorite (NaOCl) to the water after the water has exited the first mixing device;
- and
- turbulently mixing the NaOCl with the flowing water in a second mixing device from which air has been purged, thereby producing an aqueous solution of hypochlorous acid (HOCl);
- and
- encapsulating the aqueous solution of hypochlorous acid and an anti-metabolic agent selected from a group consisting of zinc, copper, and silver in a nanoparticle.
5 more elements
Dependencies are inferred from the claim text.