Sustained release composition
AssigneeSpermvital AS
InventorsElisabeth Kommisrud, Anne Hege Alm-Kristiansen, Geir Klinkenberg
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Abstract
The present invention relates to sustained release compositions, and in particular a sustained release composition comprising spermatozoa embedded in a matrix, such as a polymeric matrix. By having at least two sections with distinct dissolution rate, the matrix will ensure that spermatozoa are released for a prolonged period of time and thus making the time of insemination relative to ovulation less critical. Further, the present invention also relates to a method for preparing the sustained release composition, container comprising the sustained release composition and use of the sustained release composition in the breeding of animals.
Claims16
A sustained release composition comprising a material to be released embedded in a matrix, the matrix comprising an ionically crosslinked polymer and having at least a first and a second section with distinct mechanical strength;
- wherein the ionically crosslinked polymer is ionically crosslinked alginate, the alginate having more guluronic acid residues than mannuronic acid residues.
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Dependencies are inferred from the claim text.