Abstract: A method of attaching heterogeneous materials comprising pretreating the surface of a metal plate with an aromatic compound containing a pyrogallol group to bind the pyrogallol group to the surface of the metal plate and coating the pyrogallol-group-bound metal plate with a polymer resin, thereby greatly improving the adhesive strength between the metal plate and the polymer resin.

Abstract: Disclosed is a method of attaching heterogeneous materials, for example, a metal plate and a polymer resin, by greatly improving the adhesive strength between the heterogeneous materials, for example, the metal plate and the polymer resin. Particularly, the method may include pretreating the surface of a metal plate with an aromatic compound containing a pyrogallol group to bind the pyrogallol group to the surface of the metal plate and coating the pyrogallol-group-bound metal plate with a polymer resin, thereby greatly improving the adhesive strength between the metal plate and the polymer resin through a simple process.

Abstract: The present invention relates to a polymer substrate that contains polycrystalline pores formed on a surface thereof and a method of preparing the same by a surface treatment. The polymer of the present invention contains, on its surface, pores with a polycrystalline structure, and, thus, it exhibits hydrophobicity that accounts for a high fouling resistance. Not only that, the hydrophobicity provides the polymer substrate with the ability for mechanical adhesion in the formation of an adhesive interface, resulting in an excellent adhesive strength. Also, the method of surface treatment to prepare such a substrate is advantageous in that it can treat a large area of a surface economically while not using substances that are harmful to the human body and environment.

Abstract: An oral preparation including: a porous disintegrative template; and an active ingredient supported in the pores of the disintegrative template, is excellent in physical/chemical stability, processibility, and fast-acting property as compared to the existing dosage form, and may block unpleasantness due to a bitter taste during the internal use and meet the medicine-taking compliance.

Abstract: A polymer or polymer composite membrane having through-thickness micropores and a method of preparing the same are provided. More particularly, a polymer or polymer composite membrane having a pore structure such that micropores are aligned in a mesh structure in the thickness direction of the polymer or polymer composite membrane due to unidirectional freezing in the thickness direction of a solvent. The membrane has through-thickness micropores, and thus has improved permeability in the thickness direction and superior uniformity in size of the micropores and wall thickness between the micropores. For these reasons, the membrane can be used for a porous membrane substrate, microfiltration membrane, etc.

Abstract: A powder comprising nanoparticles of a sparingly water-soluble drug prepared in accordance with the present invention exhibits enhanced bioavailability without generating adverse side effects caused by impurities, while the nano-particle size of the drug remains unchanged when administered. Accordingly, the powder can be useful for the development of a formulation of a sparingly water-soluble drug for oral and parenteral administration.