Seoul National University – Page 2

Extremely Stretchable Electrode based on Combination of Inkjet-Printed Silver and Conductive Composite for Stretchable Lighting Applications

Kim D., Kim S., Byun J., Chung S., Kim D., Kim S., Hong Y., Seoul National University, KR

We have studied stretchable electrode based on combination of inkjet-printed silver electrode and conductive composite materials for stretchable lighting device applications. Previous stretchable electrodes were mainly realized by either vacuum deposition or inkjet-printing of conductive [...]

A Fully Electric DNA Detection using CMOS integrated CNT network Sensor

Kim S-H, Woo J-M, Ahn J.H., Park Y.J., Seoul National University, KR

A fully CMOS integrated carbon nanotube (CNT) sensor platform that consists of 32X32 array of unitary CNT elements for electric bio material detection is presented. For digital conversion of the analog voltage of CNT sensor [...]

The acid-base properties of carboxylated CNT and the design of CNTFET biosensor

Kwon H.J., Woo J-M, Lim J., Kim S-H, Park Y.J., Seoul National University, KR

We observed the sign of the two responses from carbon nanotube field effect transistor (CNTFET) in aqueous solution by means of dynamic measurements. Two types of surface group, the hydroxyl and the carboxyl group of [...]

Acoustic energy harvesting using nanotube sheet flutter

Kang T.J., Jang E.Y., Lima M.D., Im H., Ovalle-Robles R., Kim T., Kim Y.H., Baughman R.H., Kim T., Kim Y.H., Seoul National University, KR

Energy harvesting from the surrounding environment has attracted much interest for diverse applications. One of the most widely available forms of ambient energy is acoustic noise, which is essentially inexhaustible and everywhere, however few research [...]

Hertz Elastic Contact in Spherical Nanoindentation Considering Infinitesimal Deformation of Indenter

Kang S.-K., Kim J-Y, Kim Y.-C., Lee Y-H, Kim J-Y, Kim Y.-C., Kwon D., Seoul National University, KR

Many studies have been performed to identify and analyze unusual nano-scale phenomena. Violation of Hertz elastic contact between the spherical nanoindenter and metallic materials has been discussed in previous studies. The unexpected results obtained using [...]

Biological effects of PLA-TCP nanocomposites on osteoblastic cells

Kim H.W., Kim J.W., Kim T.I., Lee H.-H., Lee S.-P., Kim H.W., Kim J.W., Kim T.I., Kim H.W., Kim J.W., Kim T.I., Lee H.-H., Lee S.-P., Seoul National University, KR

Composite substrates are considered as prospective matrix to populate and support cells in the bioengineering field. Synthetic degradable biomaterials, including poly(lactic acid) (PLA) and tricalcium phosphate (TCP), are widely used for matrix scaffold. In present [...]

Embossed and Intaglio Nano-Patterning using Nanopipette based on the QTF-AFM System

An S.M., Lee K.Y., Jhe W.H., Seoul National University, KR

We demonstrated embossed and intaglio nano-patterning using Nanopipette based on the QTF-AFM (Quartz Tunning Fork-Atomic Force Microscopy) system. Used materials in the patterning system were nanoparticles solution and acetone for delivery solution mica and flat [...]

Increased Sensitivity of Carbon Nanotube Sensors by Forming Stable and Low Resistance CNT/metal Electrode

Jeon D., Park D., Lee S., Seoul National University, KR

We fabricated a rigid and low resistance contact for CNT by utilizing a eutectic mixture melting at low temperature as an electrode. The fabrication was done by depositing a eutectic Au/Al thin film on the [...]

A Permselective Layered Silicate Modified by Acid-treatment and Its Use for Blocking of Methanol Crossover in DMFC

Yoo H., Kim J.H., Kwak S-Y, Seoul National University, KR

Layered silicates currently find uses in ion-exchange, adsorption, catalysis and fabrication of nanocomposites. Several layered silicates have channel systems or open frameworks within layers. They can be used to solve the problem for direct methanol [...]

Nanobrush Structured Oligo(epsilon-caprolactone) as a Novel Plasticizer for the Manufacture of Eco-friendly Poly(vinyl chloride)

Choi W.H., Kwak S-Y, Seoul National University, KR

Phthalates such as DEHP are the most commonly used plasticizers in flexible PVC. According to the information recently reported, the phthalates still hold almost 90% of the world’s plasticizer market. There have been, however, many [...]