Kim Y. – TechConnect Briefs

Carbonaceous Materials Supported-Pd Catalysts for the Enantioselective Hydrogenation of (E)-alpha-Phenylcinnamic acid: The Influence of Support Acidity

Bui Trung T.S., Kim S., Kim Y., Kang S., Lee H., Kim S., Kim Y., Korea Advanced Institute of Science and Technology (KAIST), KR

We performed a systematically comparative study of carbonaceous materials as catalyst supports for the asymmetric heterogeneous hydrogenation of (E)-alpha-phenylcinnamic acid to study the influence of the supports on the reaction enantioselectivity. We prepared Pd-based catalysts [...]

Electrocatalytic activity of core-shell carbon-metal nanocomposites derived from carbon dioxide

Lee J.W., Zhang J., Kim Y., Byeon A., Korea Advanced Institute of Science and Technology, KR

The polymer electrolyte fuel cells(PEFCs) have demonstrated one of promising devices to convert chemical energy of fuels with high energy efficiency, high power density, and low environment impact. Despite wide applications in many areas, the [...]

Fabrication of Active Digital Microfluidic Paper Chips with Inkjet-printed Patterned Electrodes and their Point-of Care Biomedical Application

Ko H., Lee J., Kim K., Kim Y., Kee Y., Kim K., Kim Y., Jung C-H, Choi J-H, Kwon O-S, Shin K., Sogang University, KR

Active, paper-based, microfluidic chips driven by electrowetting are fabricated by using inkjet printing and demonstrated for reagent transport and mixing. Instead of using the passive capillary force on the pulp to actuate a flow of [...]

High throughput leukemia cell(k-562) sorting system based on negative dielectrophoretic force

Kim B., Kim Y., Lee D., Kim B., Kim Y., Korea Aerospace University, KR

For high throughput and high separation efficiency, the proposed sorting platform comprises meso-size vertical channel and silicon wafer based micro cantilever-type electrodes for generating n-DEP force and playing a role of micro-channel. To reduce engineering [...]

Characterization of Nanostructural Modifications Introduced into a Model Pectic Homogalacturonan by Esterases or Chemical Saponification and Modeling of Enzyme Mode of Action

Cameron R.G., Luzio G.A., Kim Y., Vasu P., Savary B.J., Williams M.A.K., United States Department of Agriculture, Agricultural Research Service, US

Pectin functionality is largely dependent on the ratio of methylesterified/demethylesterified galacturonic acid (GalA) residues present in its polymeric homogalacturonan region (40 – 60 nm in length, 100 – 150 GalA residues) and how the two [...]

Structural and Mechanical Changes in Heart Mitochondria of Rat by AFM

Lee G.J., Lee J.W., Chae S.-J., Kang S-W, Lee G.J., Lee J.W., Ha S.J., Kim W., Kim Y., Kim W., Kim Y., Park H.K., Kyung Hee University, KR

Mitochondria play critical roles in both the life and death of cardiac myocytes. Various factors such as loss of ATP synthesis and increase of ATP hydrolysis, impairment in ionic homeostasis, formation of reactive oxygen species [...]

Combining solution processed and vacuum deposited layers in small molecule organic solar cell

Kim Y., Imperial College, UK

In this work the characteristics and mechanisms remarkably affecting efficiency in vacuum deposited small molecule solar cells using pentacene, C60, and BCP and the combination of solution processed and vacuum deposited layers like a P3HT [...]

Combining solution processed and vacuum deposited layers in small molecule organic solar cell

Kim Y., Imperial College, UK

In this work the characteristics and mechanisms remarkably affecting efficiency in vacuum deposited small molecule solar cells using pentacene, C60, and BCP and the combination of solution processed and vacuum deposited layers like a P3HT [...]

A current controlled plasma-on-a-chip for atmospheric plasma generation

Park H., Jeong J., Kim Y., Hongik University, KR

We present a plasma-on-a-chip operated in a current controlled bias scheme for atmospheric plasma generation. The plasma-on-a-chip was fabricated using micromachining techniques and includes an array of vertically formed micro gaps between an anode and [...]

Ultra-thin gold membrane transducer

Kim H., Kim Y., Cha M., Kim H., Kim Y., Lee J., Lee S., Shin J., Lee J., Lee S., Seoul National University, KR

This work deals with ultra-thin metal-based nanomechenical transducers that have potentials for extraordinary sensitivity. This nano membrane transducer (NMT) consists of a flat thin film of gold with 30-60 nm thickness freely suspended over large [...]