A5102945825- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Luminescence and Fluorescent Materials
- Cancer Mechanisms and Therapy
- Moringa oleifera research and applications
- Molecular Junctions and Nanostructures
- Natural Antidiabetic Agents Studies
- Phytochemical compounds biological activities
- Lipid Membrane Structure and Behavior
- Food Allergy and Anaphylaxis Research
- Advanced Sensor and Energy Harvesting Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Analytical Chemistry and Sensors
- Crystallization and Solubility Studies
- Eosinophilic Esophagitis
- Extracellular vesicles in disease
- Polymer Surface Interaction Studies
- X-ray Diffraction in Crystallography
- Polydiacetylene-based materials and applications
- Antimicrobial Peptides and Activities
- Advanced battery technologies research
- Microfluidic and Bio-sensing Technologies
- Asthma and respiratory diseases
- Medicinal Plant Research
Yonsei University
2023-2024
Pusan National University
1997-2024
Eulji University
2024
Eulji University Hospital
2024
Samsung (South Korea)
2005-2022
Korea University
2021-2022
Ulsan National Institute of Science and Technology
2020-2021
Samsung Medical Center
2017-2021
Sungkyunkwan University
2017-2021
Kyung Hee University
2021
Although the organic light-emitting diode (OLED) has been successfully commercialized, development of deep-blue OLEDs with high efficiency and long lifetime remains a challenge. Here, novel hyperfluorescent OLED that incorporates Pt(II) complex (PtON7-dtb) as phosphorescent sensitizer hydrocarbon-based multiple resonance-based fluorophore an emitter (TBPDP ν-DABNA) in device emissive layer (EML), is proposed. Such EML system can promote efficient energy transfer from triplet excited states...
New highly efficient thermally activated delayed fluorescence (TADF) dopant materials (PXB-DI and PXB-mIC) for blue organic light-emitting diodes are reported. These were designed by combining conjugated rigid ring donor moieties a boron acceptor with twisted configuration to have high TADF performance minimized self-quenching properties. In addition, new triplet energy hole transport-type host material,...
Abstract Among the extensive development of wearable electronics, which can be implanted onto bodies or embedded in clothes, textile‐based devices have gained significant attention. For daily basis applications, energy storage are required to stable under harsh environmental conditions and different deformational conditions. In this study, a stretchable supercapacitor with high electrochemical performance, mechanical stability, temperature tolerance over wide range is reported. It exhibits...
Exosomes in body fluids are important liquid biopsy as they reflect the information of their originating cells. Thus, exosome analysis can provide valuable insights into diseases such cancer. However, low concentration exosomes is accompanied by background noise, making challenging. Here, a microfluidic chip which three-dimensional nanostructures were arranged herringbone pattern (nanochip) that could efficiently capture specific was developed. Nanostructures prepared stacking silica...
A series of indolo[3,2-b]indole (IDID) derivatives are designed as a novel structural platform for thermally activated delayed fluorescence (TADF) emitters. Intramolecular charge transfer (ICT)-type molecules consisting IDID donor (D) and various acceptor (A) moieties synthesized characterized in the protocol systematical structure-property correlation. exhibit high efficiency, prompt well TADF with emission ranges tuned by chemical structure units. Interestingly, almost all show an...
We demonstrate that dramatically improved hole injection can be achieved by inserting a very thin C60 film between the indium tin oxide (ITO) electrode and N,N′-diphenyl-N,N′-bis(1,1′-biphenyl)-4,4′-diamine (NPB) layer. This result is ascribed to formation of an interfacial dipole layer buckminsterfullerene (C60) on ITO electrode. The induces surface potential shift contributes improve charge efficiency. chemical was downward help lower energy barrier from NPB layer, consistent with...
Breast cancer (BC) is a major global health problem, with ≈20-25% of patients overexpressing human epidermal growth factor receptor 2 (HER2), an aggressive marker, yet access to early detection and treatment varies across countries. A low-cost, equipment-free, easy-to-use polydiacetylene (PDA)-based colorimetric sensor developed for HER2-overexpressing detection, designed use in low- middle-income countries (LMICs). PDA nanoparticles are first prepared through thin-film hydration....
Abstract A molecular structural approach is applied by introducing substituent groups (X) to explore the structure–property correlation of thermally activated delayed fluorescence (TADF) mechanism and develop blue TADF materials. D–A–X emitters show emissions from 446 487 nm exhibit high rate constants reverse intersystem crossing ( k rISC ) 0.76 × 10 6 2.13 s −1 . Organic light emitting diodes (OLEDs) based on efficient external quantum efficiency 17.2% 23.9%. Furthermore, theoretical...
Batteries' performance and safety depend on the thermodynamic properties of active materials. Electrochemical measurements provide an effective way to determine batteries. For example, open-circuit voltage (OCV) electrochemical cell is a direct measure Gibbs free energy (ΔG) as function state charge (SoC). Moreover, entropymetry determines reaction entropy (ΔS) from temperature dependency OCV. Considering that enthalpy (ΔH) derived those ΔG ΔS values, nondestructive tool study complete...
We aimed to investigate the mediating factors between maternal anxiety and development of food allergy (FA) in children until 2 years from birth.
Abstract Point‐of‐care (POC) monitoring of patient condition is crucial for effective cancer treatment and prognosis. This can be achieved non‐invasively by analyzing exosomes in body fluids. However, the heterogeneity non‐standardized quantification methods may interfere with clearly determining patient's condition. Therefore, there a need technology that precisely analyze both tumor‐derived normal exosomes. Herein, this study presents exosome multiple‐separation simultaneous detection...
Increasing anthropogenic activities have adversely affected freshwater supply, making it an important global issue. Water resources are often contaminated by industrial dyes, which may harm both environment and human health even at low-level exposure. Herein, we report the adsorptive removal of a representative azo dye, methyl orange (MO) on PCN-224, Zr porphyrinic metal–organic framework (MOF). Nanoporous PCN-224 has desirable structural characteristics such as optimal pore aperture large...
Two bipolar host materials were designed and synthesized for blue thermally activated delayed fluorescence (TADF) OLEDs.
Oral immunotherapy (OIT) has emerged to build sustained unresponsiveness or tolerance in patients with egg allergy. However, it is important increase compliance and ensure safety because OIT requires an extended period of time a risk side effects like anaphylaxis. We aimed show the feasibility during build-up phase using home-based, up-dosing method children Sixteen aged 4 12 years allergy were enrolled. Patients increased dose boiled white (EW) by 5% per day at home 25% month hospital,...
Key parameters of the host for long lifetimes in phosphorescent organic light-emitting diodes were investigated by synthesizing three isomeric hosts with a carbazolylcarbazole hole transport moiety and benzonitrile electron moiety.
Colorimetric Detection In article number 2307262, Eun-Kyung Lim, Seungjoo Haam, and co-workers illustrate that blue HER2-MPDA combines with HER2 overexpressing exosomes, changes color to red, is captured separated by a magnet. Magnetically concentrated red can be seen the naked eye. The left side colored distinguish it from right side.