Modified anti-microbial surfaces, devices and methods
OwnerValerio Ditizio, Frank DiCosmoinventors
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Abstract
Methods for making modified surfaces and in particular, surfaces that may be lubricious and may be further treated to be anti-microbial are disclosed. Devices comprising modified surfaces prepared by the methods are also disclosed. An exemplary method comprises incubating a photo-initiator-coated substrate in an aqueous monomer solution that is capable of free radical polymerization, exposing the incubating substrate to ultraviolet (UV) light creating a modified surface on the substrate. An anti-microbial agent may be added to the modified surface.
Claims45
A method for making a modified surface on a substrate comprising:
- incubating a photo-initiator-coated substrate in an aqueous monomer solution capable of free radical polymerization;
- exposing the incubating substrate to ultraviolet light creating a modified surface on the substrate;
- and
- rendering the modified surface lubricious.
A method for making a modified surface on a substrate comprising:
- coating the substrate with a photo-initiator;
- incubating the photo-initiator-coated substrate in an aqueous monomer solution capable of free radical polymerization;
- and
- exposing the incubating substrate to ultraviolet light creating a modified surface on the substrate.
A method for making a modified surface on a substrate comprising:
- coating the substrate with a photo-initiator;
- incubating the photo-initiator-coated substrate in an aqueous monomer solution capable of free radical polymerization;
- exposing the incubating substrate to ultraviolet light creating a modified surface on the substrate;
- and
- rendering the modified surface anti-microbial.
A method for making a modified surface on a substrate comprising:
- coating the substrate with a photo-initiator;
- incubating the photo-initiator-coated substrate in an aqueous monomer solution capable of free radical polymerization;
- exposing the incubating photo-initiator-coated substrate to ultraviolet light creating a modified surface on the substrate;
- and
- ionizing the modified surface in an aqueous base solution so that the modified surface is negatively charged, followed by incubation with a silver salt solution.
A method for making a modified surface on a substrate comprising:
- coating the substrate with a photo-initiator;
- incubating the photo-initiator-coated substrate in an aqueous monomer solution capable of free radical polymerization;
- exposing the incubating substrate to ultraviolet light creating a modified surface on the substrate;
- and
- coating the substrate with the modified surface with a polyethylene oxide hydrogel having a silver salt incorporated therein.
A method for making a modified surface on a substrate comprising:
- immersing a substrate in an alcoholic solution of a photo-initiator for a time sufficient for the photo-initiator to adhere to the surface of the substrate;
- incubating the photo-initiator-coated substrate in an aqueous monomer solution capable of free radical polymerization;
- subjecting the incubating substrate to ultraviolet (UV) light at a suitable wavelength to initiate polymerization of the monomer on the surface of the substrate, creating a modified surface on the substrate;
- and
- rendering the modified surface anti-microbial.
Dependencies are inferred from the claim text.