A5076446699- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Microfluidic and Bio-sensing Technologies
- Catalytic Processes in Materials Science
- Technology Adoption and User Behaviour
- Electrochemical Analysis and Applications
- Electrospun Nanofibers in Biomedical Applications
- Microfluidic and Capillary Electrophoresis Applications
- Knowledge Management and Sharing
- Advanced biosensing and bioanalysis techniques
- Photonic and Optical Devices
- Graphene research and applications
- Customer Service Quality and Loyalty
- 3D Printing in Biomedical Research
- Tissue Engineering and Regenerative Medicine
- Advanced battery technologies research
- Catalysis and Hydrodesulfurization Studies
- Asymmetric Hydrogenation and Catalysis
- Advanced Vision and Imaging
- Digital Marketing and Social Media
- Photonic Crystals and Applications
- Bone Tissue Engineering Materials
- Advanced Sensor and Energy Harvesting Materials
- Nanomaterials for catalytic reactions
- Innovative Microfluidic and Catalytic Techniques Innovation
Yonsei University
2010-2025
University of Illinois Urbana-Champaign
2018-2024
Konyang University
2022-2024
Korea University
2009-2024
SK Group (South Korea)
2024
Korea University Medical Center
2021-2024
Dakota State University
2015-2021
Gwangju Institute of Science and Technology
2019
Pusan National University
2016
Stony Brook University
2016
Abstract Field-effect transistor (FET)-based biosensors allow label-free detection of biomolecules by measuring their intrinsic charges. The limit these sensors is determined the Debye screening charges from counter ions in solutions. Here, we use FETs with a deformed monolayer graphene channel for nucleic acids. These devices even millimeter scale channels show an ultra-high sensitivity buffer and human serum sample down to 600 zM 20 aM, respectively, which are ∼18 ∼600 acid molecules....
Bioengineering approaches that combine living cellular components with three-dimensional scaffolds to generate motion can be used develop a new generation of miniature robots. Integrating on-board electronics and remote control in these biological machines will enable various applications across engineering, biology, medicine. Here, we present hybrid bioelectronic robots equipped battery-free microinorganic light-emitting diodes for wireless real-time communication. Centimeter-scale walking...
An air-stable, heterogeneous, and recyclable catalyst composed of palladium nanoparticles entrapped in aluminum hydroxide was applied to a highly selective α alkylation. A wide range aliphatic aromatic ketones primary alcohols were coupled prepare enones an O2 atmosphere argon (see scheme). Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z502422_s.pdf or from author. Please note: The publisher not responsible content...
A new copper catalyst was developed by immobilizing nanoparticles in aluminum oxyhydoxide fiber. The showed high catalytic activity for the (3+2) Huisgen cycloaddition of nonactivated alkynes as well activated ones with various azides at room temperature. recycled five times without significant loss activity.
Universal platforms for biomolecular analysis using label-free sensing modalities can address important diagnostic challenges. Electrical field effect-sensors are an class of devices that enable point-of-care by probing the charge in biological entities. Use crumpled graphene this application is especially promising. It previously reported limit detection (LoD) on electrical effect-based sensors DNA molecules FET (field-effect transistor) platform. Here, FET-based biosensing biomarkers...
The rapid and unexpected spread of SARS-CoV-2 worldwide has caused unprecedented disruption to daily life brought forward critical challenges for public health. disease was the largest cause death in United States early 2021. Likewise, COVID-19 pandemic highlighted need accurate diagnoses at scales larger than ever before. To improve availability current gold standard diagnostic testing methods, development point-of-care devices that can maintain sensitivity while reducing cost providing...
We propose a new power-splitting scheme in two-dimensional photonic crystals that can be applicable to integrated circuits. The proposed mechanism is analogous of conventional three-waveguide directional couplers, utilizing coupling between guided modes supported by line-defect waveguides. Through the analysis dispersion curve and field patterns modes, position propagation direction, where an input split into two-folded image, determined simple mode analysis. Based on calculated position,...
Platinum-modified Au nanoparticles on a carbon support were prepared using carbon-supported as substrate and successive reduction process. These applied an electrocatalyst for formic acid electro-oxidation. The uniform Pt-modified (<5 nm in diameter) highly dispersed the particles, surface was deposited with nanoscaled Pt. showed higher electrocatalytic activities than pure Pt area- mass-specific current densities. results might be due to enhancement effect of atoms high utilization...
An efficient oxidant-free oxidation for a wide range of alcohols was achieved by recyclable ruthenium catalyst. The catalyst prepared from readily available reagents one-pot synthesis through nanoparticle generation and gelation.
This paper examines how an individual's disaster experience affects his or her perceptions of sociotechnical safety factors (risk, information assurance, resilience) and perceived usefulness hospital systems (HIS). consists t
Abstract The recyclable metal nanoparticle catalysts, rhodium in aluminum oxyhydroxide [Rh/AlO(OH)] and iridium [Ir/AlO(OH)], were simply prepared from readily available reagents. catalysts showed high activities the hydrogenation of various arenes ketones under mild conditions. Selective was possible for bicyclic tricyclic yields. active at room temperature even with a hydrogen balloon. Also, turnover frequency (TOF) values solventless conditions 75 °C 4 atm pressure: ca. 1700 h −1 benzene....
alloy nanoparticle catalysts for use in direct methanol fuel cells were synthesized by reduction with and freeze-drying their electrocatalytic activities examined reactions of methanol, formaldehyde, formic acid. The extent formation average particle size characterized X-ray diffraction transmission electron microscopy. photoelectron spectra confirmed that the surface state Au was exclusively metallic, while Ru has not only metallic characteristics but is also present oxidized form. Based on...
This study presents an extrusion method for producing uniformly truncated amyloid nanofibrils using carbonate filter membranes and examines inter-fibril interactions after incubation, along with end-to-end ligation elongation process.
A new recyclable rhodium catalyst was synthesized by a simple procedure from readily available reagents, which showed high activities in the hydrogenation of various arenes under 1 atm H2 at room temperature.