A5102849821- Per- and polyfluoroalkyl substances research
- Enzyme Catalysis and Immobilization
- Microplastics and Plastic Pollution
- Toxic Organic Pollutants Impact
- Psychosocial Factors Impacting Youth
- Uterine Myomas and Treatments
- Electrospun Nanofibers in Biomedical Applications
- Food Quality and Safety Studies
- Cyclopropane Reaction Mechanisms
- Fluorine in Organic Chemistry
- melanin and skin pigmentation
- Recycling and Waste Management Techniques
- Advanced Cellulose Research Studies
- Adsorption and biosorption for pollutant removal
- Phytochemistry and Biological Activities
- Natural product bioactivities and synthesis
- Silk-based biomaterials and applications
- Biological and pharmacological studies of plants
- Pharmacological Effects of Medicinal Plants
- Water Quality Monitoring and Analysis
- Ectopic Pregnancy Diagnosis and Management
- Electrochemical sensors and biosensors
- Hydrogels: synthesis, properties, applications
- Advanced oxidation water treatment
- Enzyme-mediated dye degradation
Konkuk University Medical Center
2018-2025
Seoul National University Bundang Hospital
2007-2024
Konkuk University
2008-2024
Korea University of Science and Technology
2023-2024
Korea Institute of Civil Engineering and Building Technology
2020-2024
Nkmax (South Korea)
2021
Yonsei University
2009-2020
Korea Institute of Science and Technology
2020
University of Regensburg
2020
Sungkyunkwan University
2007-2019
In this study, the effects of in situ chemical oxidation (ISCO) on biogeochemical properties an aquifer soil were evaluated. Microcosms packed with investigated for 4 months two phases including oxidant exposure (phase I) and biostimulation involving acetate addition II). The geochemical microbial alterations from different concentrations (0.2 50 mM) hydrogen peroxide (HP) peroxymonosulfate (PMS) assessed. mM PMS-treated sample exhibited most significant changes, characterized by decrease pH...
Background/Objectives: Strabismus surgery in pediatric patients is associated with a high incidence of postoperative nausea and vomiting (PONV). Patients showing pain are more prone to develop PONV. As the infratrochlear nerve (ITN) block can ameliorate perioperative following strabismus surgery, we hypothesized that ITN may influence PONV undergoing surgery. Methods: The medical charts older than 2 years exotropia who underwent under general anesthesia, or without block, were reviewed...
Despite its environmental significance, little is known about denitrification in vadose zones owing to the complexity of such environments. Here, we investigated unsaturated soils with different pore distributions. To this end, performed batch-type experiments and analyzed microbial community shifts before after possible reactions nitrates clarify relevant denitrifying mechanism microcosms. For quantitative comparison, distribution test soil samples was characterized based on uniformity...
Previous studies evaluating Vitamin B12 (VB12) with Ti(III)-citrate for potential use in situ remediation of perfluorooctanesulfonate (PFOS) found that linear (L)-PFOS was unaltered. We explored if alternate reductants could overcome this limitation a primary focus on nanoscale zerovalent zinc (nZn0). Transformation over time VB12-nZn0 quantified at 22, 70, and 90 °C PFOS, 70 perfluorohexanesulfonate (PFHxS), VB12-nFe0 VB12-Pd0/nFe0 PFOS. Only branched (br-) isomers were transformed...
Blended biopolymer-based photocatalytic hydrogel beads were synthesized by dissolving the biopolymers in 1-ethyl-3-methylimidazolium acetate ([Emim][Ac]), adding TiO2, and reconstituting with ethanol. The incorporation of modifying biopolymer significantly enhanced adsorption capacity cellulose/TiO2 beads. Cellulose/carrageenan/TiO2 exhibited a 7.0-fold increase for methylene blue (MB). In contrast, cellulose/chitosan/TiO2 showed 4.8-fold methyl orange (MO) compared addition, microbeads...
Tyrosinase inhibitors improve skin whitening by inhibiting the formation of melanin precursors in skin. The inhibitory activity seven phlorotannins (1–7), triphlorethol A (1), eckol (2), 2-phloroeckol (3), phlorofucofuroeckol (4), 2-O-(2,4,6-trihydroxyphenyl)-6,6′-bieckol (5), 6,8′-bieckol (6), and 8,8′-bieckol (7), from Ecklonia cava was tested against tyrosinase, which converts tyrosine into dihydroxyphenylalanine. Compounds 3 5 had IC50 values 7.0 ± 0.2 8.8 0.1 μM, respectively,...
The synthesis of tropanes via a microwave-assisted, stereoselective 6π-electrocyclic ring-opening/ Huisgen [3+2]-cycloaddition cascade cyclopropanated pyrrole and furan derivatives with electron-deficient dipolarophiles is demonstrated. Starting from furans or pyrroles, 8-aza- 8-oxabicyclo[3.2.1]octanes are accessible in two steps dia- enantioselective pure form, being versatile building blocks for the pharmaceutically relevant targets, especially new cocaine analogues bearing various...
In this study, a laccase-mediator system (LMS) using natural mediator was developed as whitening agent for melanin decolorization. Seven mediators were used to replace synthetic and successfully overcome the low redox potential of laccase limited access active site laccase. The decolorization activity laccases from Trametes versicolor (lacT) Myceliophthora thermophila (lacM) significantly enhanced including acetosyringone, syringaldehyde, acetovanillone, which showed cytotoxicity. methoxy...
In this study, we prepared alginate composite hydrogel beads containing various compositions of biochar produced from pitch pine (Pinus rigida) for the removal Cu2+ and benzene model pollutant solutions. The properties alginate/biochar were evaluated using scanning electron microscopy, Fourier transform infrared spectroscopy, Brunauer−Emmet−Teller analyses. Adsorption behavior indicated that adsorption capacities (28.6−72.7 mg/g) enhanced with increasing content, whereas (20.0−52.8 improved...