A5070184221- Biosensors and Analytical Detection
- Advanced biosensing and bioanalysis techniques
- Innovative Microfluidic and Catalytic Techniques Innovation
- Analytical Chemistry and Sensors
- Microfluidic and Capillary Electrophoresis Applications
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- SARS-CoV-2 detection and testing
- Electrochemical sensors and biosensors
- 3D Printing in Biomedical Research
- Microfluidic and Bio-sensing Technologies
- Bacteriophages and microbial interactions
- Supercapacitor Materials and Fabrication
- Graphene and Nanomaterials Applications
- Electrowetting and Microfluidic Technologies
- Nanofabrication and Lithography Techniques
- Gas Sensing Nanomaterials and Sensors
- Graphene research and applications
- Fuel Cells and Related Materials
- Polymer Surface Interaction Studies
- Advancements in Battery Materials
- Advanced Biosensing Techniques and Applications
- Electrocatalysts for Energy Conversion
- Cell Image Analysis Techniques
- CRISPR and Genetic Engineering
National NanoFab Center
2016-2025
Kangwon National University
2023
Government of the Republic of Korea
2015-2020
Daejeon University
2014-2020
University of Michigan
2013-2015
Korea Advanced Institute of Science and Technology
2010-2012
University of Louisville
2007
Hierarchical hollow spheres of Fe2O3@polyaniline are fabricated by template-free synthesis iron oxides followed a post in- and exterior construction. A combination large surface area with porous structure, fast ion/electron transport, mechanical integrity renders this material attractive as lithium-ion anode, showing superior rate capability cycling performance. As service to our authors readers, journal provides supporting information supplied the authors. Such materials peer reviewed may...
There have been numerous studies to develop catalysts for the chemical recycling of poly(ethylene terephthalate) (PET) via glycolysis. However, in field PET glycolysis, only a few attempted recover and reuse catalysts. This research utilized easily recoverable superparamagnetic γ-Fe2O3 nanoparticles as reusable catalyst were produced by calcining Fe3O4 prepared co-precipitation method. The had an average size 10.5 ± 1.4 nm, very high surface area reaching 147 m2 g−1. Its property was also...
Direct 3d printing for functional modules and their assembly into an integrated microfluidic device.
Sensors with autonomous self-healing properties offer enhanced durability, reliability, and stability. Although numerous polymers have been attempted, achieving sensors fast reversible recovery under ambient conditions high mechanical toughness remains challenging. Here, a highly sensitive wearable sensor made of robust bio-based supramolecular polymer that is capable via hydrogen bonding presented. The integration carbon fiber thread into matrix provides new toolset can easily be knitted...
Antimicrobial resistance and multidrug are slower-moving pandemics than the fast-spreading coronavirus disease 2019; however, they have potential to cause a much greater threat global health. Here, we report clustered regularly interspaced short palindromic repeats (CRISPR)-mediated surface-enhanced Raman scattering (SERS) assay for multidrug-resistant (MDR) bacteria. This was developed via synergistic combination of specific gene-recognition ability CRISPR system, superb sensitivity SERS,...
We report potentiometric performance of a polyaniline nanofiber array-based pH sensor fabricated by combining dilute chemical polymerization and low-cost simple screen printing process. The had two-electrode configuration consisting array sensing electrode Ag/AgCl reference electrode. Measurement electromotive force between electrodes provided various electrochemical properties sensors. show excellent performances sensitivity 62.4 mV/pH, repeatability 97.9% retention, response time 12.8 s,...
Ultrasound-assisted synthesis of a graphene oxide (GO)–manganese nanocomposite (GO–Mn3O4) was conducted without further modification GO or employing secondary materials. With the nanoplate as support, potassium permanganate oxidizes carbon atoms in support and gets reduced to Mn3O4. An intensive ultrasound method could reduce number reaction steps temperature, enhance rate furthermore achieve Mn3O4 phase. The composite characterized by X-ray diffraction (XRD), photoelectron spectroscopy...
Development of nanostructured materials with enhanced redox reaction capabilities is important for achieving high energy and power densities in storage systems. Here, we demonstrate that the nanohybridization ionic liquids (ILs, 1-butyl-3-methylimidazolium tetrafluoroborate) cobalt hydroxide (Co(OH)2) through ionothermal synthesis leads to a rapid reversible reaction. The as-synthesized IL-Co(OH)2 has favorable, tailored morphology large surface area 400.4 m(2)/g mesopore size 4.8 nm. In...
In this work, we report on a simple and scalable process to synthesize the core-shell nanostructure of MoS2@N-doped carbon nanosheets (MoS2@C), in which polydopamine is coated MoS2 surface then carbonized. An intensive investigation using transmission electron microscopy Raman spectroscopy reveals that as-synthesized MoS2@C possesses nanoscopic ultrathin layer sheets with thin conformal coating layers (∼ 3 nm). The demonstrates superior electrochemical performances as an anode material for...
Ultrathin and defect-free graphene ink is prepared through a high-throughput fluid dynamics process, resulting in high exfoliation yield (53.5%) concentration (47.5 mg mL-1). A screen-printed conductor exhibits electrical conductivity of 1.49 × 104 S m-1 good mechanical flexibility. An electrochemical sodium ion sensor based on an excellent potentiometric sensing performance mechanically bent state. Real-time monitoring sweat demonstrated. Conductive inks materials have received significant...
Abstract Endonucleases have recently widely used in molecular diagnostics. Here, we report a strategy to exploit the properties of Argonaute (Ago) proteins for diagnostics by introducing an artificial nucleic acid circuit with Ago protein (ANCA) method. The ANCA is designed perform continuous autocatalytic reaction through cross-catalytic cleavage protein, enabling one-step, amplification-free, and isothermal DNA detection. Using method, carbapenemase-producing Klebsiella pneumoniae (CPKP)...
ZnSe/ZnS core/shell quantum dots (QDs) with efficient blue emission are in situ synthesized using a novel microfluidic reaction system. This advances research on both simple one-step synthesis of QDs and their production thermoplastic-based systems. Furthermore, QD light-emitting diodes (LEDs) demonstrated as wavelength converters. For the continuous (QDs), continuous-flow systems have been recognized an effective alternative strategy to conventional batch due precise controllability...
Carbon-based electrochemical double-layer capacitors and pseudocapacitors, consisting of a symmetric configuration electrodes, can deliver much higher power densities than batteries, but they suffer from low energy densities. Herein, we report the development high density supercapacitors using an asymmetric Fe2O3 MnO2 nanoparticles incorporated into 3D macroporous graphene film electrodes that be operated in safe low-cost aqueous electrolyte. The gap working potential windows enables stable...
The flexible sensing platform is a key component for the development of smart portable devices targeting healthcare, environmental monitoring, point-of-care diagnostics, and personal electronics. Herein, we demonstrate simple, scalable, cost-effective strategy fabrication electrode based on waste newspaper with conformal coating parylene C (P-paper). Thin polymeric layers over cellulose fibers allow P-paper to possess improved mechanical chemical stability, which results in high-performance...
Flexible, thin, and lightweight supercapacitors have been regarded as important power sources for portable wearable electronics; however, these are usually limited by relatively low areal or volumetric performances compared to their gravimetric performance. In this paper, a large-area, flexible three-dimensional (3D) polyaniline nanoweb film with controlled nanomorphology is reported the improvement of supercapacitors. The 3D structure provides large ion accessible active sites, short...
Abstract Postsurgical intraocular lens (IOL) infection caused by pathogenic bacteria can result in blindness and often requires a secondary operation to replace the contaminated lens. The incorporation of an antibacterial property onto IOL surface prevent bacterial postoperative endophthalmitis. This study describes polymeric nanopillar array (NPA) integrated IOL, which captures eradicates rupturing membrane. is accomplished changing behavior elastic nanopillars using bending, restoration,...
Over the past few years, infections caused by airborne pathogens have spread worldwide, infecting several people and becoming an increasingly severe threat to public health. Therefore, there is urgent need for developing pathogen monitoring technology use in confined environments enable epidemic prevention. In this study, we designed a colorimetry-based bacterial detection platform that uses clustered regularly interspaced short palindromic repeat-associated protein 12a system amplify...