KR – Page 36 – TechConnect Briefs

Effects of the Shape of Nanoparticles on the Crystallization Behavior of Poly(ethylene terephthalate) Nanocomposites in the Flow Fields

Kim B.C., Jang K.H., Hahm W.G., Kikutani T., Lee J., Hanyang University, KR

This paper investigated the effects of the shape of nanoparticles on the crystallization behavior of high molecular weight poly(ethylene terephthalate) (PET ; inherent viscosity of 0.98 g/dl) in the shear and elongational flow fields. Two [...]

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

Rha M., Park J.M., Kwon T.H., 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 [...]

Rhodamine B Isothiocyanate-Modified Ag Nanoaggregates on Dielectric Beads: A Novel Surface-Enhanced-Raman-Scattering and Fluorescent Imaging Material

Kim K., Lee H.B., Lee J.W., Jang H.J., Lee H.B., Lee J.W., Seoul National University, KR

Ag-deposited silica and polystyrene beads are efficient surface-enhanced-Raman-scattering (SERS) substrates that can be used as core materials of SERS-based biosensors. In this work, we report that once rhodamine B isothiocyanate (RhBITC) is adsorbed onto them, [...]

Synthesis of Porous Nanostructured Silica Particles by an Aerosol Templating Method

Jang H-D, Chang H., Park J.H., Kim T-O, Okuyama K., Korea Instittute of geoscience and Mineral Resources, KR

Silica nano-materials with meso- and macroporosity are of great interest due to their variety of potential applications. For the application as a catalytic supporter, nanostructured spherical silica particles having both mesopores and macropores were prepared [...]

Vertically aligned carbon nanowires (CNWs): Top-down approach using photolithography and pyrolysis

Lee J.A., Lee S-W., Lee S.S., Lee J.A., Lee S-W., Lee S.S., Lee J.A., Lee S-W., Lee S.S., Korea Advanced Institute of Science and Technology (KAIST), KR

Top-down approach for vertically aligned CNWs has not reported yet although it is necessary for immediate integration of CNWs with micro and nano systems. In this paper, vertically aligned pyrolyzed carbon nanowires (CNWs) is fabricated [...]

Periodic Nanowell Array using Template-Assisted Nanosphere Lithography

Jung S., Lee J., Seoul National University, KR

This paper presents a template-assisted nanosphere lithography(NSL) to obtain high-quality crystal in regularity and coverage(Figure 1). A periodic array of 100-nm deep, 360-450 nm wide nano-trenches was fabricated by nano imprint lithography(NIL), and used as [...]

Molecular dynamics study of ballistic rearrangement of surface atoms during high energy ion bombardment on Pd (001) surface

Kim S.-P., Lee K-R, Korea Institute of Science and Technology, KR

In this work, we employed MD simulation to investigate the details of the surface structure evolution during high energy Ar bombardment on Pd (001) surface. From the statistical manner by summing up for 1,000 independent [...]

Replication of micro/nano combined structure using micro/nano combined aluminum stamp

Cha K.J., Kwon T.H., POSTECH, KR

This paper presents an easy and efficient fabrication method of plastic replicas of micro/nano combined structures using an aluminum stamp with micro/nano combined structures (ASMNCS) on its surface. ASMNCS could be fabricated by two steps: [...]

Au Nanoparticle Coupled- Surface Plasmon Resonance Immuno-sensor for Sensitivity Enhancement

Kim H-S, Kim J.H., Kim H-S, Kim J.H., Ko S-H., Cho Y-J, Kim H-S, Kim J.H., Ajou University, KR

In order to overcome the sensitivity limitation of SPR, nanoparticle-coupled SPR biosensors have explored since nanoparticles may significantly enhance the sensitivity by 1-2 orders of magnitude. Although the nanoparticle conjugated method contributes to the enhancement [...]

Oxygen plasma treated superhydrophobic nozzle for electrospray device

Lee S., Lee Y., Byun D., Tran S.B.Q., Kim S., Park B., Lee S., Lee Y., Konkuk University, KR

When the meniscus of liquid is subject to strong electric field, electric charge is induced on the meniscus and electrostatic force elongates the liquid to form a cone-jet. This electrospray phenomenon can be applied to [...]