A5035879847- Polymer Nanocomposite Synthesis and Irradiation
- Graphene research and applications
- Conducting polymers and applications
- Ion-surface interactions and analysis
- Surface Modification and Superhydrophobicity
- Nanofabrication and Lithography Techniques
- Advancements in Battery Materials
- Fiber-reinforced polymer composites
- Organic Electronics and Photovoltaics
- Bone Tissue Engineering Materials
- Electrospun Nanofibers in Biomedical Applications
- Polymer Surface Interaction Studies
- Graphene and Nanomaterials Applications
- Microfluidic and Capillary Electrophoresis Applications
- biodegradable polymer synthesis and properties
- Carbon Nanotubes in Composites
- 3D Printing in Biomedical Research
- Chemical Synthesis and Characterization
- Electrowetting and Microfluidic Technologies
- Modular Robots and Swarm Intelligence
- Silicone and Siloxane Chemistry
- Advanced Sensor and Energy Harvesting Materials
- Tissue Engineering and Regenerative Medicine
- Advanced Battery Technologies Research
- Neuroscience and Neural Engineering
Chung-Ang University
2025
Korea Atomic Energy Research Institute
2015-2024
Chonnam National University
2019-2024
Korea University
2022
Government of the Republic of Korea
2016-2019
Korea Institute of Energy Research
2017-2018
Chungnam National University
2018
PRG S&Tech (South Korea)
2018
Gwangju Institute of Science and Technology
2013-2016
Active, paper-based, microfluidic chips driven by electrowetting are fabricated and demonstrated for reagent transport mixing. Instead of using the passive capillary force on pulp to actuate a flow liquid, group digital drops transported along programmed trajectories above electrodes printed low-cost paper, which should allow point-of-care production diagnostic activities in future.
Several in-situ preparation methods of gel polymer electrolytes (GPEs) to develop long-lasting and safe lithium ion batteries (LIBs) recently have been reported. However, the reported still technical gaps for practical industrial uses in terms processing time, integrity with current production line, scalability. Here, we report an method prepare crosslinked poly(vinylene carbonate-co-cyanoethyl acrylate) (PVCEA) GPEs using 10 MeV electron beam (EB) irradiation a fully-assembled metallic...
Under ambient conditions, the catalytic and electrocatalytic syntheses of ammonia from nitrogen various proton sources including wet tetrahydrofuran (THF) protic solvents methanol water were performed using titanocene dichloride ((η5-C5H5)2TiCl2, commonly abbreviated to CP2TiCl2) in a two-electrode cell containing 1.0 M LiCl as electrolyte. The highest rate synthesis, 9.5 × 10–10 mol·cm–2·sec–1·M CP2TiCl2–1, was achieved at −1 V water, whereas faradaic efficiency (0.95%) −2 THF. On account...
In this study, we developed an efficient method to prepare a crosslinked poly(vinyl pyrrolidone)/poly(ethylene glycol) diacrylate) (PVP/PEGDA) copolymer-grafted non-woven polypropylene (PP) sheet for which water can be used as green solvent while providing large amount of grafting functional groups on the PP matrix without diminishing mechanical properties. It was demonstrated that subsequent iodine complexation PP-g-PVP/PEGDA produces strong antibacterial activity desirable wound dressings....
The surface of Nafion membranes was modified by light ion implantation to reduce methanol crossover without affecting bulk membrane properties.
In this research, we report an initiator-free and room-temperature 2.5 MeV electron beam (EB)-induced gelation strategy to in-situ create polyvinylpyrrolidone-based gel polymer electrolytes (PVP-GPEs) in a fully-assembled lithium ion battery (LIB). A radiation-sensitive liquid precursor consisting of 1-vinyl-2-pyrrolidone (VP), poly (ethylene glycol) diacrylate (PD), LiClO4 electrolyte (LE) was effectively converted freestanding PVP-GPEs even at absorbed dose 2 kGy (Irradiation time 6 s)....
A simple and controllable one-step method to fabricate superhydrophobic surfaces on poly(tetrafluoroethylene) (PTFE) films is developed the base of electron irradiation. When thickness PTFE higher than penetration depth beams, electrical charging occurs at surface because imbalance between accumulation incident electrons emission secondary electrons. Local inhomogeneity charge distribution due this results in nonuniform decomposition molecular bonds. As fluence increases, morphology...
The surface of a poly(ethylene terephthalate) (PET) film was selectively irradiated with proton beams at various fluences to generate carboxylic acid groups on the surface; resulting functionalized PET then characterized in terms its wettability, chemical structure, and composition. results revealed that (i) were successfully generated regions surface, (ii) their relative amounts dependent fluence. A capture biomolecule, anthrax toxin probe DNA, immobilized surface. Cy3-labeled DNA as target...
We investigated whether electrical stimulation via indium tin oxide (ITO) could enhance the in vitro culture of neonatal rat ventricular myocytes (NRVMs), which are important models for studying mechanisms underlying many aspects cardiology.Cardiomyocytes were obtained from 1-day-old heart ventricles. To evaluate function NRVMs cultured on ITO with stimulation, cell viability, change morphology, immunochemistry using cardiac-specific antibodies, and gene expression tested.Defined sarcomeric...