Antimicrobial porous silicon oxide particles
OwnerPatrice Bujard, Holger Hoppeinventors
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Abstract
The present invention relates to antimicrobial, porous particles, especially porous, non-platelet-like SiO2 particles, comprising an organic, or inorganic antimicrobial compound, or composition, with the proviso that the porous particles are not porous SiOz flakes, wherein 0.70<z<2.0, especially 0.95<z<2.0, which provide enhanced (long term) antimicrobial efficacy.
Claims17
An antimicrobial, porous particle, comprising an organic, or inorganic antimicrobial compound, or composition, with the proviso that the porous particles are not porous SiOz flakes, wherein 0.70≦z≦2.0.
A process for the production of metal containing porous particles, comprising the following steps:
- a) suspending the particles in a solvent,
- b) adding solvent soluble antimicrobial metal salts and optionally a reducing agent to the solution,
- c) isolation of the metal containing particles and
- d) calcinating the particles at a temperature of 200 to 800° C.
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Dependencies are inferred from the claim text.