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US 2007/0065481 A1Published application
Coatings including natural biodegradable polysaccharides and uses thereof
AssigneeSurModics, Inc.
InventorsStephen Chudzik, Joseph Chinn, Dale Swan, Michael Burkstrand
Life of this patent
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Abstract
Biodegradable coatings and articles that include natural biodegradable polysaccharides are described. The coatings and articles are formed from a plurality of natural biodegradable polysaccharides having pendent coupling groups.
Claims21
A method for forming a biodegradable coating on an article surface comprising the steps of
- providing a first composition comprising (a) a natural biodegradable polysaccharide comprising a pendent polymerizable group and (b) a first member of a redox pair;
- contacting the first composition with a second composition comprising a second member of the redox pair where, in the step of contacting, the redox pair initiates polymerization of the natural biodegradable polysaccharide;
- and
- disposing the first composition, the second composition, or a mixture of the first and second composition on the article surface.
1 more element
An article having a biodegradable coating comprising
- a plurality of natural biodegradable polysaccharides associated via polymerized groups;
- reduced oxidizing agent;
- and
- oxidized reducing agent.
1 more element
An article having a biodegradable bioactive agent-releasing coating comprising
- a first coated layer comprising a synthetic polymer;
- and
- a second coated layer comprising a plurality of natural biodegradable polysaccharides associated via polymerized groups and a bioactive agent, wherein the first coated layer is between the second coated layer and a surface of the article.
Dependencies are inferred from the claim text.