A5081581544- Innovative Microfluidic and Catalytic Techniques Innovation
- 3D Printing in Biomedical Research
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Silicon Nanostructures and Photoluminescence
- Acoustic Wave Resonator Technologies
- Electrohydrodynamics and Fluid Dynamics
- Advanced Combustion Engine Technologies
- Silicon and Solar Cell Technologies
- Engineering Applied Research
- Thin-Film Transistor Technologies
- Vehicle emissions and performance
- Pickering emulsions and particle stabilization
- Advancements in Photolithography Techniques
- Integrated Circuits and Semiconductor Failure Analysis
- Semiconductor materials and devices
- Ferroelectric and Piezoelectric Materials
- Polymer Surface Interaction Studies
- 3D IC and TSV technologies
- Bone Tissue Engineering Materials
- Advanced Sensor and Energy Harvesting Materials
- ZnO doping and properties
- Electron and X-Ray Spectroscopy Techniques
- Graphene research and applications
Seoul National University
2023-2024
Ulsan National Institute of Science and Technology
2020-2023
Korea Advanced Institute of Science and Technology
2014-2021
Kookmin University
2019
Kyungpook National University
2012-2018
Harvard University
2017-2018
Brigham and Women's Hospital
2017-2018
Massachusetts Institute of Technology
2017-2018
Innovation Research Center
2017
Kootenay Association for Science & Technology
2016
Blood vessels and nerve fibers are distributed throughout the entirety of skeletal tissue, play important roles during bone development fracture healing by supplying oxygen, nutrients, cells. However, despite successful mimetic materials that can replace damaged from a structural point view, most available biomaterials often do not induce sufficient formation blood nerves. In part, this is due to difficulty integrating regulating multiple tissue types within artificial materials, which...
This review discusses the current state of art in microfluidic-based production multiple-emulsion drops and functional microcapsules.
The loading levels of electrodes are one the crucial parameters high energy lithium-ion batteries (LIBs); however, their effects on specific and density remain insufficiently studied. Moreover, rate capability can differ greatly with varying hence requires further investigation. Herein, we investigated relationship between electrode electrochemical performance LIBs via galvanostatic intermittent titration technique (GITT) impedance spectroscopy (EIS). We found that differences in stem from...
Small coin cell batteries are predominantly used for testing lithium‐ion (LIBs) in academia because they require small amounts of material and easy to assemble. However, insufficient attention is given difference performance that arises from the differences format between cells by academic researchers pouch or cylindrical which industry. In this article, we compare different size with exactly same electrode materials, electrolyte, electrochemical conditions. We show battery impedance changes...
We developed an injectable osteogenic hydrogel that can deliver cells and endothelial growth factors.
Biodegradable microcapsules with a large aqueous lumen and ultrathin membrane are microfluidically designed for sustained release of hydrophilic bioactives using water‐in‐oil‐in‐water double‐emulsion drops as template. As shell phase, an organic solution poly(lactic‐co‐glycolic acid) is used, which consolidated to form biodegradable membrane. The encapsulants stored in the released over long period time membranes degrade. can be controlled range —three five months at neutral pH condition by...
Reaction pathway of isothermal growth defective graphene shell on Fe catalyst by the carbide-mediated catalytic hydrogenolysis. This promotes a reversible Li plating/stripping behavior.
Silicon for anodes in lithium-ion batteries has received much attention owing to its superior specific capacity. There been a rapid increase of research related void engineering address the silicon failure mechanism stemming from massive volume change during (dis)charging past decade. Nevertheless, conventional synthetic methods require complex procedures and toxic reagents form space, so they have an obvious limitation reach practical application. Here, we introduce SiCx consisting...
Abstract Maintaining a stable interface of lithium metal anodes (LMAs) by implementing protective layer is promising approach in extending the cycle life batteries (LMBs). Nevertheless, designing with desired physicochemical properties still challenging task. Herein, an inorganic–organic composite consisting fluorinated graphene oxide (FGO) (inorganic part) and polyacrylic acid (PAA) (organic that are situ crosslinked via poly(ethylene glycol) diglycidyl ether (PEGDE) into robust network...
Semipermeable microcapsules have a great potential in controlled release of drugs, protection catalysts, and immunoisolation cells. However, method to create such with precisely cutoff value high mechanical stability remains an important challenge. Herein we report microfluidic approach size-selective permeability using phase separation polymer blends ultrathin middle layer double-emulsion drops. The blend strongly confined two-dimensional space exhibit local separation, instead global...
Herein, we demonstrate a novel method for the generation of monodisperse cell-like structures containing biocompatible hydrogel matrix surrounded by membrane responsive to chemical cues. Specifically, employ droplet-based microfluidics generate PEG-PLA polymersomes encapsulating alginate in liquid form. We investigate core gelation creating an osmotic pressure gradient across polymeric that, through expansion, allows passage calcium ions. The effects concentration on are explored.
Abstract Capsules with thin shells have a high‐loading capacity and are thus well‐suited containers for reagents that must be stored in confined volumes. contained larger capsules, so‐called double allow the encapsulation of distinct within small, defined, well‐separated Therefore, they offer possibilities to initiate reactions volumes release bioactives sequentially while minimizing risk cross contaminations. In this study, new microfluidic capillary device is presented enables assembly...
A highly biocompatible microfluidic method to prepare alginate microgels is developed by selectively coalescing two distinct water drops paired with an ultra-thin oil shell.
Monodisperse microcapsules with ultra‐thin membranes are microfluidically designed to be highly sensitive osmotic pressure, thereby providing a tool for the direct measurement of strength. To make such osmocapsules, water‐in‐oil‐in‐water double‐emulsion drops shells prepared as templates through emulsification core–sheath biphasic flow in capillary microfluidic device. When photocurable monomers used oil phase, osmocapsules by in‐situ photopolymerization monomers, resulting semipermeable...
A systematic analysis of the calendar aging behavior 700 mA h full-cell with nickel-rich LiNi 0.88 Co 0.1 Al 0.02 O under 45 °C and 60 for 30 weeks.
Controlling the organization of self-assembling building blocks over a large area is crucial for lithographic tools based on bottom-up approach. However, fabrication liquid crystal (LC) defect patterns with particular ordering still remains challenge because limited close-packed morphologies LC defects. Here, we introduce multiple-stamping domain separation method control dimensions and structures. Prepatterns various grid shapes planar polyimide (PI) surfaces were fabricated by pressing...
Microcapsules with regular pore size can provide size-selective permeation, which is promising for immunoisolation of cells, protection enzymes or catalysts, and development capsule-type sensors. However, conventional approaches have limited biocompatibility poor dispersion stability encapsulants. Here, we suggest a simple yet pragmatic method to produce semipermeable microcapsules using osmotic stress. With capillary microfluidic device, monodisperse ultrathin polymer membranes are prepared...
Abstract Mineral carbonation is the most effective carbon capture technique, but dioxide (CO 2 ) conversion limited by slow hydration rate of CO (<10 −1 s ). A biological solution exists: carbonic anhydrase (CA) efficiently hydrates at a turnover ≈10 6 under ambient conditions, making it an extremely attractive candidate for industrial post‐combustion capture. However, high cost and poor long‐term stability impose technical barrier to its practical uses. Here, genetically engineered...
The emergence of the internet everything (IoE) demands high-performance, real-time multi-media and wideband networking in battery-operated mobile systems. For this reason, higher bandwidth lower power DRAMs are becoming increasingly critical. As promising candidates next-generation DRAM, development LPDDR4 [1] wide-IO2 (WIO2) DRAM is ongoing these days. conventional single data rate (SDR) wide IO [2] has achieved ×4 compared to LPDDR2 by increasing number IOs (e.g. 512 DQs). WIO2 paper DQs,...
In the American continent, most frequently used alternative fuel is ethanol. Especially in Brazil, various blends of gasoline–ethanol fuels are widely spread. The vehicle using blended called flexible vehicle. Because several selections for blending ratios gas stations, properties may vary after refueling depending on a driver’s selection. Also, combustion characteristics engine change. order to respond market study performed. main purpose this enhance performance target Brazilian market....
Abstract Amorphous silicon (a-Si:H)/amorphous silicon-germanium (a-SiGe:H) superlattices were deposited by 13.56 MHz plasma enhanced chemical vapor deposition (PECVD) method using a mixture of SiH4, GeH4and H2. The superlattice materials consist alternating layers a-Si:H and a-SiGe:H. used as barrier material a-SiGe:H well material. It was found that the optical bandgap controlled changing thickness layer (2–10 nm). Based on these results, fabricated pin-type based solar cells structures in...