Abstract: Provided are a method for fabricating a highly elastic porous polymer membrane, a method for manufacturing a cell culture system using a porous polymer membrane fabricated by the fabrication method, and a cell culture system manufactured by the manufacturing method. The porous polymer membrane can be fabricated by spin coating a mixture solution containing a biodegradable elastomeric polymer and a water-soluble moisture absorbent in an optimum ratio while maintaining a high relative humidity. The porous polymer membrane has a uniform thickness and a uniform pore size and is highly elastic. In addition, the thickness and pore size of the porous polymer membrane can be controlled. The porous polymer membrane can induce active cell-cell interaction during cell co-culture due to its high porosity. The porous polymer membrane enables control over cell alignment or array due to its high biocompatibility and elasticity.

Abstract: The present invention relates to a method for preparing of a nerve conduit using bio-printing technology and a nerve conduit prepared by the same, and it can easily prepare a nerve conduit by simulating a nerve bundle and nerve tissue, and the like, by three-dimensionally printing bio-ink comprising a neuronal regeneration material on one side of a porous polymer scaffold.

Abstract: Provided is a method of forming an apatite coating, the method including immersing a substrate in an apatite-forming precursor solution including Ca2+ ions and PO43? ions, emitting a laser beam onto a surface of the substrate immersed in the precursor solution, and forming an apatite coating in a region exposed to the laser beam, wherein an output power of the laser beam is set within a range enabling the surface of the substrate to be melted.

Abstract: Provided is a method of forming an apatite coating, the method including immersing a substrate in an apatite-forming precursor solution including Ca2+ ions and PO43? ions, emitting a laser beam onto a surface of the substrate immersed in the precursor solution, and forming an apatite coating in a region exposed to the laser beam, wherein an output power of the laser beam is set within a range enabling the surface of the substrate to be melted.

Abstract: Provided are a method for fabricating a highly elastic porous polymer membrane, a method for manufacturing a cell culture system using a porous polymer membrane fabricated by the fabrication method, and a cell culture system manufactured by the manufacturing method. The porous polymer membrane can be fabricated by spin coating a mixture solution containing a biodegradable elastomeric polymer and a water-soluble moisture absorbent in an optimum ratio while maintaining a high relative humidity. The porous polymer membrane has a uniform thickness and a uniform pore size and is highly elastic. In addition, the thickness and pore size of the porous polymer membrane can be controlled. The porous polymer membrane can induce active cell-cell interaction during cell co-culture due to its high porosity. The porous polymer membrane enables control over cell alignment or array due to its high biocompatibility and elasticity.

Abstract: Provided are a method for producing a stereocomplex polylactic acid composite based on oil-in-water emulsion blending, a method for preparing a drug delivery composition using a stereocomplex polylactic acid composite produced by the production method, and a drug delivery composition prepared by the preparation method. The stereocomplex polylactic acid composite is produced using oil-in-water emulsion blending that has the advantages of simple process, short production time, and high stereocomplexation efficiency compared to existing methods such as solution blending, melt-blending, and supercritical fluid technology. In addition, the drug delivery composition is prepared using oil-in-water emulsion blending that allows the drug to be loaded into the polymer chains of the stereocomplex polylactic acid in a very easy and efficient manner and facilitates release of the drug at room temperature over a long period of time.

Abstract: The present invention relates to a method for preparing of a nerve conduit using bio-printing technology and a nerve conduit prepared by the same, and it can easily prepare a nerve conduit by simulating a nerve bundle and nerve tissue, and the like, by three-dimensionally printing bio-ink comprising a neuronal regeneration material on one side of a porous polymer scaffold.