Postech Academy-industry Foundation

Joon-Won Kim

Hyun-Chul Park

Kun-Hong Lee

Woon-Bong Hwang

Dong-Seob Kim

Geun-Bae Lim

Sang-Min Lee

Sang-min Lee

Dong-hyun Kim

Byeong-joo Lee

Seong-Ho Son

Dong-Hyun Kim

Wan-Kyun Chung

Il-Sin Bae

Duk-Hyun Choi

Chang-Woo Lee

Ji-Hoon Jeon

Tae-Chul Moon

An exemplary embodiment of the present invention relates to a cuvette of which an inner space thereof is easily cleansed while minimizing its inner space. A cuvette according to an exemplary embodiment of the present invention includes an upper portion having an inlet and forming a first inner space; a middle portion following the first inner space and forming a second inner space that is smaller than the first inner space; and a lower portion following the second inner space and forming a through hole having an interior diameter that is narrower than a cross-section of the second inner space. Accordingly, the through hole functions as a valve to stop the solution when the solution is divided to the inner space for the test, and after the test, the inlet is pressed such that the through hole functions as a nozzle when cleansing such that the solution may be exhausted therefrom.

Cuvette

A method for fabricating a 3D (three-dimensional) structure is disclosed to provide hydrophobicity to a surface of a 3D structure by using a dipping method in which a predetermined-shaped structure is immersed in a molten metal solution. The method includes: immersing a predetermined-shaped structure in a molten metal solution to coat a molten metal material on the surface of the predetermined-shaped structure; anodizing a metal base coated with the molten metal material; coating a polymer material on an outer surface of the metal-coated base to form a negative replica structure; covering an outer surface of the negative replica structure with an outer formation material; and removing the metal-coated base from the negative replica structure and the outer formation material.

Method for fabricating 3D structure having hydrophobic surface by dipping method

The present invention relates to a method for manufacturing a solid body having a superhydrophobic surface structure formed by using a surface treatment of a metal body, a replication process, and a polymer sticking phenomenon to increase efficiency of fluid transfer and prevent foreign materials from being accumulated in the tube, and a superhydrophobic fluid transfer tube using the method. The superhydrophobic fluid transfer tube includes a fluid guider and a solid body provided on a fluid contact surface of the fluid guider and has micrometer-scaled unevenness and nanometer-scaled protrusions. In the method, a plurality of nanometer-scaled holes are formed on a surface of a metal body through an anodizing process, a replica is formed by immersing the metal body provided with the nanometer-scaled holes in a non-wetting polymer material and solidifying the non-wetting polymer material, the solid body having the superhydrophobic surface is formed by removing the metal body and an anode oxide from the replica, and the solid body is provided to a fluid contact surface of a fluid guider for guiding a fluid.

Method for fabricating solid body having superhydrophobic surface structure and superhydrophobic tube using the same method

A pneumatic dispenser () according to the present invention includes: a first plate () including a liquid supply unit (), a first chamber (C) connected to the liquid supply unit (), and a liquid discharge unit () connected to the first chamber (C), a flexible membrane () at least installed on the first chamber (C) of the first plate () and establishing one side of the first chamber (C), a second plate () including a second chamber (C) at a side opposite to the first chamber (C) while facing the first plate () with the flexible membrane () interposed there between and a bump () formed by protruding the liquid supply unit () toward the flexible membrane ().

Pneumatic dispenser

The present invention relates to a three-dimensional structure manufacturing method for performing surface treatment processes, and a replication step to provide hydrophobicity on an external surface of the three-dimensional structure. In the manufacturing method, the hydrophobicity may be provided to the external surface of the three-dimensional structure, a high cost device required in the conventional MEMS process is not used, the manufacturing cost is reduced, and the manufacturing process is simplified. In addition, it has been difficult to provide the hydrophobicity on an external surface of a three-dimensional structure having a large surface due to a spatial limitation, but in the exemplary embodiment of the present invention, the hydrophobicity may be provided to the external surface of the three-dimensional structure having a large surface, such as a torpedo, a submarine, a ship, and a vehicle, without the spatial limitation.

Manufacturing method of 3D shape structure having hydrophobic external surface

A method for fabricating a 3D (three-dimensional) structure such that the 3D structure has a surface with hydrophobicity by using a metal foil such as an aluminum foil is disclosed. The method includes preparing a metal foil base by attaching a metal foil on an outer surface of a predetermined-shaped 3D structure; anodizing the metal foil base; coating a polymer material on the outer surface of the metal foil base material to form a negative replica structure; forming an outer structure by covering an outer surface of the negative replica structure with an outer formation material; and removing the metal foil base.

Method for fabricating 3D structure having hydrophobic surface using metal foil

The present invention relates to a manufacturing method of a three dimensional structure having a hydrophobic inner surface. The manufacturing method includes anodizing a three dimensional metal member and forming fine holes on an external surface of the metal member, forming a replica by coating a non-wetting polymer material on the outer surface of the metal member and forming the non-wetting polymer material to be a replication structure corresponding to the fine holes of the metal member, forming an exterior by surrounding the replication structure with an exterior forming material, and etching the metal member and eliminating the metal member from the replication structure and the exterior forming material.

Growing community of inventors

Pohang, South Korea

Joon-Won Kim