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US 9,162,013 B2Granted
Substance with an antimicrobial effect
AssigneePlansee SE
InventorsJoseph Peter Guggenbichler, Nico Eberhardt, Hans-Peter Martinz, Heiko Wildner
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Abstract
A method reducing microbial growth uses an inorganic substance consisting of MoO2 and/or MoO3 which causes the formation of hydrogen cations when in contact with an aqueous medium to achieve an antimicrobial effect. The substance is present as a layer or a component of a layer, and is present in combination with one or more materials as a composite material. The composite material has a polymer matrix, and the substance is incorporated at 3 to 50% by weight into the composite material.
Claims34
A method for the reduction of microbial growth comprising,
- forming a composite material using an inorganic substance as a component of the composite material, or using the inorganic substance as a layer or a component of a layer proximate a surface of a substrate that in combination form the composite material, the inorganic substance comprising MoO2, MoO3, molybdenum carbide, molybdenum nitride, molybdenum silicide, molybdenum sulfide, molybdenum hexacarbonyl, and/or molybdenum acetyl acetonate, wherein the substance is used in powder form, wherein the inorganic substance is included at a mass content of between about 3% and 50%, and wherein the substance has a particle size according to Fisher of <5 μm;
- and
- contacting the composite material to an aqueous environment, wherein the contacting causes the formation of hydrogen cations to achieve an antimicrobial effect, and wherein, subsequent to the contacting, the aqueous environment at an interface with the composite material is characterized by a pH of less than 6.
Dependencies are inferred from the claim text.