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US 12,616,719 B2Granted
Dispersion solution of complex of cerium oxide nanoparticle with protein, method of scavenging reactive species, and method of producing dispersion solution of complex of cerium oxide nanoparticle with protein
AssigneeToray Industries, Inc.
InventorsShota Sekiguchi, Takahiro Motoshiromizu, Masateru Ito
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Abstract
A dispersion solution contains a complex of cerium oxide nanoparticle with protein in which a hydrodynamic diameter and zeta potential of the protein are maintained. The dispersion solution is produced by mixing a solution containing the protein with a solution containing a cerium (III) ion or with a cerium (III) salt followed by adding an oxidizing agent thereto.
Claims5
A method of producing a dispersion solution of a complex of cerium oxide nanoparticle with protein, the method comprising:
- mixing a solution containing the protein with a solution containing a cerium (III) ion or with a cerium (III) salt;
- and
- adding an oxidizing agent thereto to produce a dispersion solution of a complex of cerium oxide nanoparticles with protein, the oxidizing agent oxidizing a cerium (III) ion to cerium (IV), and the cerium oxide nanoparticles consisting of a mixture of Ce2O3 and CeO2, wherein
- the oxidizing agent is selected from the group consisting of nitric acid, potassium nitrate, hypochlorous acid, chlorous acid, chloric acid, perchloric acid, halogens, permanganate salts, chromic acid, dichromic acid, sulfuric acid, or hydrogen peroxide.
1 more element
Dependencies are inferred from the claim text.