A5006096083- Advanced Sensor and Energy Harvesting Materials
- Silk-based biomaterials and applications
- Gas Sensing Nanomaterials and Sensors
- Graphene research and applications
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- 2D Materials and Applications
- Advanced Battery Technologies Research
- Advanced Battery Materials and Technologies
- Quantum Dots Synthesis And Properties
- Enzyme Structure and Function
- Advancements in Battery Materials
- Transition Metal Oxide Nanomaterials
- interferon and immune responses
- Aquaculture disease management and microbiota
- Liquid Crystal Research Advancements
- ZnO doping and properties
- Photonic Crystals and Applications
- NF-κB Signaling Pathways
- Bacterial Genetics and Biotechnology
- Antibiotic Resistance in Bacteria
- Carbon Dioxide Capture Technologies
- Bioactive Compounds and Antitumor Agents
- Cell death mechanisms and regulation
- Insect symbiosis and bacterial influences
Chung-Ang University
2019-2024
Incheon National University
2018-2024
Ulsan National Institute of Science and Technology
2020-2021
Government of the Republic of Korea
2019-2020
Incheon Medical Center
2020
Handong Global University
2014
Kyung Hee University
2010
Abstract A conventional electrode composite for rechargeable zinc‐ion batteries (ZIBs) includes a binder strong adhesion between the material and current collector. However, introduction of leads to electrochemical inactivity low electrical conductivity, resulting in decay capacity rate capability. We present binder‐ conducting agent‐free VO 2 using situ polymerization dopamine on flexible collector pyroprotein‐based fibers. The as‐fabricated was used as substrate direct growth...
An electronic textile-based NO2 gas sensor was fabricated using commercial silk and graphene oxide (GO). It showed a fast response time excellent sensing performance, which simply accomplished by modifying the heat-treatment process. The heat treatment conducted at 400 °C different heating rates of 1, 3, 5 °C/min. Compared with our previous research, significantly decreased, from 32.5 to 3.26 min, we found that highest obtained treated rate 1 To find reason for this enhanced morphology,...
Demand for wearable and portable electronic devices has increased, raising interest in textiles (e-textiles). E-textiles have been produced using various materials including carbon nanotubes, graphene, graphene oxide. Among the this minireview, we introduce e-textiles fabricated with oxide (GO) coating, commercial textiles. GO-coated cotton, nylon, polyester, silk are reported. The were reduced chemically thermally. maximum e-textile conductivity of about 10 S/cm was achieved silk. We also...
Electronic textile-based gas sensors with a high response for NO2 were fabricated using reduced graphene oxide (rGO)-coated commercial cotton fabric (rGOC). Graphene (GO) was coated on by simply dipping the into GO solution. To investigate relationship between degree of reduction and sensing response, GO-coated fabrics thermally at various temperatures (190, 200, 300, 400 °C). The change in amount oxygen functional groups rGOCs observed x-ray photoelectron spectroscopy, Raman diffraction...
Many studies on flexible strain and pressure sensors have been reported due to growing interest in wearable devices for healthcare. However, most are fabricated with multiple ingredients complicated methods even though commercial textiles, such as cotton, nylon, polyester, silk were used. Here we present (motion) prepared only graphene oxide (GO) fabrics yarns. The by simply dipping the fabric into GO solution followed thermal treatment at 400 °C reduction of (rGO). made from rGO-coated...
Tumor necrosis factor receptor-associated (TRAF) proteins play pivotal roles in a multitude of cellular signaling pathways, encompassing immune response, cell fate determination, development, and thrombosis. Their involvement these processes hinges largely on their ability to interact directly with diverse receptors via the TRAF domain. Given limited binding interface, understanding how specific domains engage various structurally similar interfaces family members adapt distinct partners has...
Many studies on flexible strain and pressure sensors have been reported due to growing interest in wearable devices for healthcare purposes. Here, we present (motion) prepared with only graphene oxide (GO) commercial silk fabrics yarns. The were fabricated by simply dipping the fabric into GO solution followed applying a thermal treatment at 400 °C obtain reduced (rGO). made from rGO-coated fabrics, which stacked three, five, seven layers. A super-sensitivity of 2.58 × 10
Abstract The concept of a lithiophilic electrode proves inadequate in describing carbon‐based materials due to their substantial mismatch surface energy with lithium metal. However, notable capacity for chemisorption can increase active concentration required nucleation and growth, thereby enhancing the electrochemical performance metal anodes (LMAs). In this study, we elucidate effects supersaturated which has high around equilibrium potential on LMAs through an in‐depth comparison using...
We report improved conductance by reducing the work function via incorporation of hydrogen into VO2 nanowires. The nanowires were prepared using chemical vapor deposition method with V2O5 powder on silicon substrates at 850 °C. Hydrogenation was carried out high-pressure hydrogenation method. Raman spectroscopy confirmed that incorporated atoms resulted in a change lattice constant (NWs). To quantitatively measure nanowires, Kelvin probe force microscopy (KPFM) employed ambient conditions....
Abstract Transaminases catalyze the reversible transfer reaction of an amino group between a primary amine and α-keto acid, utilizing pyridoxal 5′-phosphate as cofactor. ω-transaminases (ωTAs) recognize linked to non-α carbon substrates. Recently, novel ( S )-enantioselective ωTA from Thermomicrobium roseum (Tr-ωTA) was identified its enzymatic activity reported. However, detailed mechanism substrate recognition remained unclear. In this study, we determined crystal structure Tr-ωTA at 1.8 Å...
Molecular tweezers based on chenodeoxycholic acid bearing different lengths of arm were synthesized andtheir anion binding affinities evaluated by <TEX>$^1H$</TEX> NMR, isothermal calorimetric titration, and ESI mass spectrometry. tweezer 6 showed a high selectivity toward <TEX>$H_2PO_4\;^-$</TEX> over <TEX>$Cl^-,\;Br^-,\;I^-, $</TEX> <TEX>$CH_3CO_2\;^-$</TEX> NMR whereas the association constant for <TEX>$F^-$</TEX> revealed largest value as determined ITC. The towards was about 103 times...
Due to the helical arrangement of molecules, CLCs selectively reflect circularly polarized light with same handedness as helix. This phenomenon is a kind Bragg reflection and called selective reflection. These features make one most interesting one- dimensional self-assembled photonic crystals.
We investigated the gas storage capacity of thermally carbonized and chemically activated Phyllostachys bambusoides (PB), which is a nature-derived green carbon with an organic porous structure. Samples were treated at 900 °C for 24 h, then different amounts KOH. The pore distribution, surface area, H2 measured by N2 sorption, up to 847 mmHg (1.13 bar) 77 K. CO2 was 298 maximum shown in sample 6 times gravimetric ratio chemical agent. It reached 1.86 wt% 3.44 mmol/g CO2. used multilateral...
Graphene oxide (GO)-coated silk-based electronic textiles (e-textiles) are of great interest and have high potential because their advantages, including electrical conductivity flexibility. Although heat treatment the GO-coated at temperatures results in e-textiles with conductivity, flexibility structural stability not guaranteed. Here, we demonstrate heat-treated silk (HGS) (HTTs; 500, 600, 700, 800 °C) superior For HGS800, resistance change during bending remained under 1% even after 5000...
In the oxidative dehydrogenation (ODH) process that converts ethylbenzene to styrene, vanadium-based catalysts, especially V2O5, are used in a CO2 atmosphere enhance efficiency. Here we demonstrate activation energy of V2O5 can be manipulated by exposure high pressure CO2, using nanowires (VON). The oxidation V4+ V5+ was observed X-ray photoelectron spectroscopy. ratio V4+/V5+ which typical comparable feature decreased 73.42%. We also found an increase interlayer distance VON from 9.95 Å...
Electronic textile-based gas sensors with a high response for NO2 were fabricated using reduced graphene oxide (rGO)-coated commercial cotton fabric (rGOC). Graphene (GO) was coated on by simply dipping the into GO solution. To investigate relationship between degree of reduction and sensing response, GO-coated fabrics thermally at various temperatures (190, 200, 300, 400 °C). The change in amount oxygen functional groups rGOCs observed x-ray photoelectron spectroscopy, Raman diffraction...