A5100714918- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Mesoporous Materials and Catalysis
- Luminescence and Fluorescent Materials
- Adsorption and biosorption for pollutant removal
- Layered Double Hydroxides Synthesis and Applications
- Photochemistry and Electron Transfer Studies
- Nanofabrication and Lithography Techniques
- Catalytic Processes in Materials Science
- Molecular Junctions and Nanostructures
- Synthesis and Properties of Aromatic Compounds
- Force Microscopy Techniques and Applications
- Analytical Chemistry and Sensors
- Metal-Organic Frameworks: Synthesis and Applications
- Anodic Oxide Films and Nanostructures
- Occupational Health and Safety Research
- Analytical chemistry methods development
- Covalent Organic Framework Applications
- Aerogels and thermal insulation
- Risk and Safety Analysis
- Porphyrin and Phthalocyanine Chemistry
- Ferroelectric and Piezoelectric Materials
- Glass properties and applications
- Advanced ceramic materials synthesis
- Iron oxide chemistry and applications
Seoul National University
2004-2025
Chonnam National University
2017
Eulji University Hospital
2015
Eulji University
2015
Myongji University
2011-2014
The University of Tokyo
2013
Kwangwoon University
2006-2013
Dong-A University
2008
The health threat of arsenic is well-known, and the U.S. EPA recommends maximum contaminant level to be 0.01 ppm or less for in drinking water. Therefore, advanced treatment processes are needed finished water meet required regulations. Adsorption considered a expensive procedure that safer handle than precipitation, ion exchange, membrane filtration. Activated alumina (AA) most commonly used adsorbent removal from aqueous solutions. However, conventional porous solids including AA have...
Abstract It is commonly accepted that a large π-conjugated system necessary to realize low-energy electronic transitions. Contrary this prevailing notion, we present new class of light-emitters utilizing simple benzene core. Among different isomeric forms diacetylphenylenediamine (DAPA), o - and p -DAPA are fluorescent, whereas m not. Remarkably, the lightest (FW = 192) molecule displaying red emission. A systematic modification DAPA allows construction library emitters covering entire...
Molecular emitters simultaneously generating light at different wavelengths have wide applications. With a small molecule, however, it is challenging to realize two independent radiative pathways. We invented the first examples of dual-emissive single-benzene fluorophores (SBFs). Two emissive tautomers are generated by synthetic modulation hydrogen bond acidity, which opens up pathways for excited-state proton transfer. White produced delicate balance between energy and intensity emission...
We report here the resonance Raman spectra and quantum chemical calculations of for β-carotene 13,13'-diphenyl-β-carotene. The first aim this approach was to test robustness method used modeling β-carotene, assess whether it could accurately predict vibrational properties derivatives in which conjugated substituents had been introduced. DFT calculations, using B3LYP functional combination with 6-311G(d,p) basis set, were able influence two phenyl connected molecule, although these deeply...
ConspectusSingle-benzene fluorophores (SBFs) are small molecules that produce visible light by using only one benzene ring as the sole aromatic core. This Account centers around chemistry of a new class SBF we accidentally discovered but rationally developed and refined afterward. In failed experiment took an unintended reaction pathway, encountered bright green fluorescence ortho-diacetylphenylenediamine (o-DAPA). Despite its uninspiring look, reminiscent textbook examples simple...
We developed a rational design strategy for small-molecule scaffolds mimicking pivotal secondary structural motifs—α-helix, β-strand, and β-turn—critical PPI recognition, using common core skeleton.
Multivariate (MTV) porous materials exhibit unique structural complexities based on their diverse spatial arrangements of multiple building block combinations. These possess potential synergistic functionalities that exceed the sum individual components. However, exponentially increasing design complexity these poses significant challenges for accurate ground-state configuration prediction and design. To address this, we propose a Hamiltonian model quantum computing integrates compositional,...
Abstract The removal of copper ions from an aqueous solution by both adsorption onto mesostructured silica containing magnetite (MSM) and magnetic separation were investigated. Magnetite (core) was used as a carrier material for separation, while amine-functionalized (shell) heavy metal ion adsorbent. pore properties, phase the prepared materials measured N2 sorptometer, vibration sample magnetometer, powder x-ray diffraction (XRD), respectively. After coating, magnetite-core MSMs maintained...
Nickel stearate was used as a chemical template and metal source for the easy-and-fast preparation of Ni/Al2O3 catalyst with mesoporous structure. Ni-Nx Ni-Hx were prepared using an NH4OH-treated precipitate HCl-treated solution template, respectively, these materials show only effect regular pore size distribution. both developed framework textural porosity larger surface area volume but less irregular structure than which shows well-developed porosity. The 27Al NMR MAS analysis showed that...
Organic solid-state electrolytes (SSEs) offer improved safety and flexibility, but they face challenges with low ionic conductivity at room temperature. Covalent organic frameworks (COFs) present a promising solution by preventing segmental motion facilitating Li+ ion transfer through nanoporous channels regularly aligned anionic groups. In particular, dissociating ions from these immobilized groups is crucial for increasing conductivity. However, the design of COFs electron-delocalized soft...
Cell-based assays can monitor virus infection at a single-cell level with high sensitivity and cost-efficiency. For this purpose, it is crucial to develop molecular probes that respond selectively physiological changes in live cells. We report stimuli-responsive light-emitters built on T-shaped benzimidazole platform, consecutive borylation reactions produce library of homologs displaying systematic fluorescence quantum yield environmental sensitivity. find certain fluorophores localize the...
Abstract The effects of the framework and/or textural porosities and functional group densities functionalized HMS on metal adsorption capacities were examined. Mercapto concentration was weakly correlated with pore size surface area supports, but strongly dependent volume. In case adsorbents a well‐developed porosity, uptake mercury ions increased an increase in mercapto concentration, while porosity show slight concentration. characteristics lead showed similar absorption trend to that...