Park J.M. – TechConnect Briefs

One-step Target Protein detection from Whole Blood in a Lab-on-a-Disc

Cho Y-K, Kim S., Ko C., Lee B-S, Lee J-G, Lee J.N., Park J.M., Samsung Advanced Institute of Technology, KR

We report a fully integrated, one-step Lab-on-a-Disc for detecting target protein from whole blood utilizing centrifugal microfluidics, so called “Immunoassay Lab-on-a-Disc”. The design principle is the microbead-based sandwich ELISA on the Disc. The microbeads are [...]

One-step White Blood Cell Separation from Whole Blood

Kim B.C., Lee J-G, Park J.M., Samsung Advanced Institute of Technology (SAIT), KR

Isolation of White Blood Cells (also called “WBC”) from whole blood is a first very important step for many in vitro assays. One currently accepted technique for WBC separation, referred to as the conventional manual [...]

Replication of nano dimple structures by injection molding with rapid thermal control system

Kwon T.H., Park J.M., Rha M., Pohang University of Science and Technology, KR

The present study proposes an efficient and easy mass production method for nano dimple structures by injection molding. Anodic aluminum oxide (AAO) technique is utilized to make a master with nano dimple structures, and then [...]

Multifunctional Microvalves Control by Optical Illumination on Nanoheaters and its Application in Centrifugal Microfluidic Devices

Cho Y-K, Ko C., Lee B-S, Lee J-G, Park J.M., Samsung Advanced Institute of Technology, KR

We report ultrafast control of phase-change based microvalves utilizing nanoheaters; ferronanoparticles dispersed in paraffin wax, and heating by optical illumination using a 808 nm laser diode. High speed camera images showed that the actual response [...]

One-step Pathogen Specific DNA Extraction from Whole Blood On a Centrifugal Microfluidic Device

Cho Y-K, Ko C., Lee B-S, Lee J-G, Lee Y., Park J.M., Samsung Advanced Institute of Technology, KR

We report a fully integrated pathogen specific DNA extraction device utilizing centrifugal microfluidics on a polymer based CD platform. Using the innovative Laser Irradiated Ferrowax Microvalves (LIFM) together with the rapid cell lysis method using [...]

A Study on the Fabrication of Micro Structure using Chemical Mechanical Micro Machining Process

Jeong H.D., Lee H.W., Park J.M., Pusan National University, KR

Single crystal silicon is widely used in the microelectronic industry. Recent advances in ultra precision machining have enabled the possibility of direct diamond turning of high quality surfaces on the brittle materials. As a brittle [...]