Regen Biotech Inc.

Kun Pil Lee

Yong Hoon Lee

Gun Poong Kim

The present invention relates to a preparation method for a biodegradable polymer microparticle and a microparticle prepared by the method. More particularly, the present invention relates to a method for preparing a polymer microparticle, wherein the method includes the steps of: dissolving a biodegradable polyester-based polymer in DMSO (Dimethyl Sulfoxide); spraying the solution in a low temperature hydrocarbon solution to provide a frozen DMSO microparticle; adding the microparticle in a low temperature salt aqueous solution to dissolve DMSO; and removing salt. The present invention provides a method for preparing a novel polymer microsphere which can be injected through a syringe due to excellent physical properties (such as biocompatibility, biodegradability, porosity, mechanical strength) and the microcarrier's size-adjustability, and can be easily mass-produced. The microparticle prepared by the method of the present invention may have variable sizes with biodegradability and biocompatibility, and thus can be used as a carrier for regeneration of a damaged cell or tissue by being injected into a body through a syringe.

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Daejeon, South Korea

Kun Pil Lee