A5101917154- Advanced Memory and Neural Computing
- Transition Metal Oxide Nanomaterials
- Conducting polymers and applications
- Plant-derived Lignans Synthesis and Bioactivity
- Advanced Chemical Sensor Technologies
- Indoor Air Quality and Microbial Exposure
- Traditional and Medicinal Uses of Annonaceae
- Gas Sensing Nanomaterials and Sensors
- Aerosol Filtration and Electrostatic Precipitation
- Optical Systems and Laser Technology
- Air Quality and Health Impacts
- Organic Electronics and Photovoltaics
- Analytical Chemistry and Chromatography
- Olfactory and Sensory Function Studies
- Organic Light-Emitting Diodes Research
- Solid State Laser Technologies
- Nanomaterials and Printing Technologies
- Respiratory and Cough-Related Research
- Thin-Film Transistor Technologies
- Phytochemistry and Biological Activities
- Receptor Mechanisms and Signaling
- Neuroscience and Neuropharmacology Research
- Graphene research and applications
- Asthma and respiratory diseases
- Laser Material Processing Techniques
Government of the Republic of Korea
2020
Yonsei University
2017-2020
Dong Wha Pharm (South Korea)
2017-2020
Kyung Hee University
2015
Korea Research Institute of Chemical Technology
2006
2,6-Diaminoanthracene (AnDA)-functionalized graphene oxide (GO) (AnDA-GO) was prepared and used to synthesize a oxide-based polyimide (PI-GO) by the in-situ polymerization method. A PI-GO nanocomposite thin film characterized infrared (IR) spectroscopy, thermogravimetric analysis (TGA) UV-visible spectroscopy. The as memory layer in fabrication of resistive random access (RRAM) device with aluminum (Al) top indium tin (ITO) bottom electrodes. showed write-once-read-many-times (WORM)...
Chemical structure of PI-GO, schematic the ITO/PI-GO/Al device and its memory characteristics.
This paper discusses some recent findings regarding the effect of a long alkyl (C18) group on performance organic thin-film transistors (OTFTs). Two different types polymer gate insulators, BTDA-DACM (PI-1) and BTDA-DACM-DA18IM (PI-2), were prepared by condensation polymerization. DA18IM with C18 was used as comonomer for preparation PI-2. We found that PI-2 protruded to surface made more hydrophobic. The modified strongly affects initial growth mechanism pentacene and, subsequently, device...
We present the first demonstration of environmental application a polyimide film (Kapton) with patterned thru-holes as novel, efficient, flexible, recyclable, and active particulate matter (PM) air filter. The Kapton filter captures PM using micro-sized strong electrostatic force because its high work function. It is highly transparent, heat-resistant. Furthermore, it can be recycled simply by washing tap water. proposed promising candidate for use efficient economical recyclable home...
Graphene oxide (GO)–cysteamine–Ag nanoparticles (GCA)–silver nanowire (AgNW) fabricated by depositing GCA over sprayed AgNWs on PET films were proposed for transparent and flexible electrodes, their optical, electrical, mechanical properties analyzed energy-dispersive X-ray spectroscopy, Fourier-transform infrared Raman atomic force microscopy, scanning electron transmission current-voltage measurements, bending test. GCA–AgNW electrodes show optical transmittance of >80% at 550 nm...
DW2008 is an anhydrous ethanol extract of Justicia procumbens produced by Dong-Wha Pharmaceutical, Inc., Co. as a candidate anti-asthmatic drug. In this study, selectively reduced T helper 2 (Th2) cytokines in mouse splenocytes and ameliorated ovalbumin-induced airway inflammation downregulating pulmonary infiltration differential inflammatory cells Th2 more than decoction or J. did asthma model. also significantly inhibited hyperresponsiveness the thickness epithelium. HPLC analysis showed...
Justicia procumbens L. is known across Korea, India, China, and Taiwan as a remedy against fever, cough, sore throat, cirrhosis of ascites. J. provides the raw material for candidate anti-asthma drug (DW2008S) currently completing phase I clinical trials sponsored by Dong Wha Pharmaceutical Company. HPLC-DAD was used to quantify phytochemical constituents procumbens, HPLC 1H-NMR results were assessed multivariate analysis. This first time comparative study using NMR fingerprints has been...
In this study, we propose a method to quantitatively analyze the concentration of VOCs adsorbed on zeolite filters via gas chromatography (GC). The sampled from with ethanol as solution were characterized using GC determine by comparing areas peaks detected and ethanol. proposed also enabled determination desorption (regeneration) conditions according heating temperature time for various VOCs. Repeated adsorption analyses allow us evaluate durability reusability filter could help predict...