KR – Page 44 – TechConnect Briefs

Physical Properties of Ferrite Nanocomposites Based On Nylon-66

Kim B.C., Kim M.H., Kim B.C., Kim M.H., Hanyang University, KR

The ferrite nanoparticles acted as a nucleating agent, leading to a small degree of supercooling. However, above a critical loading level (1 wt %), the nanoparticles in the polymer matrix might restrict the chain mobility [...]

Novel Supramolecules Based on Architecturally Variant alpha-Cyclodextrin Polyrotaxanes and Nanorod-Like alpha-Cyclodextrin Self-Assembly

Chung J.W., Yu B.-Y., Kwak S-Y, Seoul National University, KR

Self-assembly (SA-ICs) of architecturally variant alpha-cyclodextrin (alpha-CD) inclusion complexes (ICs) formed by host-guest reaction with four polymeric guest having different molecular architectures (star-shaped, hyperbranched, diblocked, and linear polymer) and nanorod-like self-assembly (SA-CD) of alpha-CD could [...]

Polyvinyl Alcohol (PVA)/Layered Silicate Nanocomposite Approaches for Organic Passivation Layers in Organic Thin Film Transistors

Ahn T., Suk H.J., Yi M-Y, Korea Reserch Institute of Chemical Technology, KR

Organic thin-film transistors (OTFTs) have been demonstrated as promising candidates for flexible displays, smart cards (badges), and gas sensors. These applications with organic electronics offer many advantages, such as light weight, low cost processing, and [...]

A Synchrotron X-ray Scattering Study on the Structure of Pepsin in Solution

Jin K.S., Jin S., Jin K.S., Jin S., Yoon J., Heo K., Kim J., Ree M., Pohang University of Science and Technology, KR

To understand the conformational behavior of a protein, it is necessary to define not only the structure of its native state but also that of various denatured states. Recent studies have revealed the biological significance [...]

Interaction of DNA with Single-Walled Carbon Nanotubes: Implication to the Bio-Sensors

Kong K-J, Chang H., Lee J-O, Korea Research Institute of Chemical Technology, KR

Here, we have briefly introduced the recent progresses in experiments of DNA sensing with CNT-FET sensors and theoretical investigations to explore the sensing mechanism.

Molecular Dynamics Simulations of Nonvolatile Carbon Nanotube Shuttle Memory

Kwon O-K., Lee J-H., Kang J-W, Hwang H-J., Semyung University, KR

We propose a novel carbon-nanotube (CNT)-based nonvolatile memory, which can serve as a key building block for molecular-scale computers and perform molecular dynamics simulations to investigate the dynamic operations of a double-walled CNT memory. We [...]

Deformation of Carbon Nanotube Oscillators Encapsulating Cu Nanowires

Lee J-H., Kang J-W, Hwang H-J., Sangmyung University, KR

Pure carbon nanotube (CNT) oscillators are compared to CNT oscillator encapsulating copper nanowire (M@CNT) by molecular dynamics simulations. The excess forces of the Cu@CNT oscillator are slightly higher than that of the CNT oscillator and [...]

Scanning Tunneling Microscopy Images of Au Adsorbed on GaAs(111)B surface

Yi H., Kratzer P., Hilner E., Mikkelsen A., KISTI, KR

We have studied the GaAs(111)B surface with Au deposited either homogeneously or as nanoparticles, and found the presence of Au in either form to give rise to a $(sqrt{3} !times! sqrt{3} )$ Au-induced surface reconstruction. [...]

Fabrication of ZnO hybrid structures and light emitting diode applications

Park S.H., Seo S.-Y., Kwak C.-H., Lee Y.B., Kim S-H, Han S.-W., Chonbuk National University, KR

Vertically well aligned ZnO nanorod arrays with a diameter of 50 - 150 nm were fabricated on Al2O3 substrates with and without GaN interlayers, and consequently covered with a crystalline ZnO film in-situ by a [...]

Sensor application of ZnO nanowires on microheater

Park J., Kim G.-T., Maeng S., Udrea F., Milne W., ETRI, KR

We fabricated the ZnO nanowire network device using sol-gel synthesis method on the pre-patterned electrode and tested the electrical property for chemical sensing. The electrodes were prepared in various ways, for example, photolithographically defined interdigitated [...]