A5100638478- Advanced Thermoelectric Materials and Devices
- Advanced biosensing and bioanalysis techniques
- Thermal properties of materials
- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- 2D Materials and Applications
- Quantum and electron transport phenomena
- Analytical Chemistry and Sensors
- Graphene research and applications
- Thermal Radiation and Cooling Technologies
- Magnetic properties of thin films
- Molecular Junctions and Nanostructures
- Advanced Nanomaterials in Catalysis
- Biosensors and Analytical Detection
- Analytical Chemistry and Chromatography
- Hormonal and reproductive studies
- Glycosylation and Glycoproteins Research
- Microfluidic and Bio-sensing Technologies
- Topological Materials and Phenomena
- Molecular Sensors and Ion Detection
- Chalcogenide Semiconductor Thin Films
- DNA and Nucleic Acid Chemistry
- Metabolomics and Mass Spectrometry Studies
- Thermal Expansion and Ionic Conductivity
- Advanced Thermodynamics and Statistical Mechanics
Kangwon National University
2024-2025
Chung-Ang University
2014-2024
Uppsala University
2022-2024
Yonsei University
2011-2023
Institute for Basic Science
2017-2023
Government of the Republic of Korea
2017-2020
Kyungpook National University
2019
Samsung Medical Center
1999-2014
Sungkyunkwan University
2014
Hyejeon College
2013
Isolation of circulating tumor cells (CTCs) by size exclusion can yield poor purity and low recovery rates, due to large variations in CTCs, which may overlap with leukocytes render size-based filtration methods unreliable. This report presents a very sensitive, selective, fast, novel method for isolation detection CTCs. Our assay platform consists three steps: (i) capturing CTCs anti-EpCAM conjugated microbeads, (ii) removal unwanted hematologic (e.g., leukocytes, erythrocytes, etc.)...
Electrochemical behavior and electrogenerated chemiluminescence (ECL) of tris(2,2'-bipyridyl)ruthenium(II) (Ru(bpy)3(2+)) immobilized in sol-gel-derived titania TiO2)-Nafion composite films coated on a glassy carbon electrode have been investigated. The electroactivity Ru(bpy)3(2+) ion exchanged into the its ECL were strongly dependent upon amount Nafion incorporated TiO2-Nafion films. sensor Ru(bpy)32+ with 50% content showed maximum intensities for both tripropylamine (TPA) sodium oxalate...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEvaluation of Use Tris(2,2'-bipyridyl)ruthenium(III) as a Chemiluminescent Reagent for Quantitation in Flowing StreamsWon-Yong. Lee and Timothy A. NiemanCite this: Anal. Chem. 1995, 67, 11, 1789–1796Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published inissue 1 June 1995https://pubs.acs.org/doi/10.1021/ac00107a007https://doi.org/10.1021/ac00107a007research-articleACS PublicationsRequest reuse...
The Seebeck effect refers to the production of an electric voltage when different temperatures are applied on a conductor, and corresponding voltage-production efficiency is represented by coefficient. We report effect: thermal generation driving from heat flowing in thin PtSe2/PtSe2 van der Waals homostructure at interface. refer as interface-induced effect. By exploiting this directly attaching multilayered PtSe2 over high-resistance films hybridized single structure, we obtained highly...
A new electrogenerated chemiluminescence detection method is investigated for use in reversed-phase and ion-pair HPLC with Ru(bpy)(3)(2+) the mobile phase. In this method, different concentrations of are dissolved phase column flushed 1 h until saturated Ru(bpy)(3)(2+). The separated analytes along pass through an optical-electrochemical flow cell which has a dual platinum electrode held at potential 1250 mV vs Ag/AgCl reference electrode. On surface electrode, oxidized to Ru(bpy)(3)(3+)...
Full automation with high purity for circulating tumor cell (CTC) isolation has been regarded as a key goal to make CTC analysis "bench-to-bedside" technology. Here, we have developed novel centrifugal microfluidic platform that can isolate the rare cells from large volume of whole blood. To CTCs blood, introduce disc device having biggest sample capacity well manipulating blood first time. The fully automated could handle 5 mL by designing chamber triangular obstacle structure (TOS) lateral...
Abstract Novel, low‐voltage, high‐detectivity, solution‐processed, flexible near‐infrared (NIR) photodetectors for optoelectronic applications are realized and their properties investigated the first time. This is achieved by synthesizing Ag 2 Se nanoparticles (NPs) in aqueous solutions, depositing highly crystalline thin films at 150 °C with redistributed NPs inks. The high conductivity low trap concentration of annealed result from formed inside improved film quality, respectively. These...
The intrinsic Berry curvature in ferromagnetic (FM) materials significantly influences Hall conductivity during the antiferromagnetic (AFM)-to-FM phase transition, as demonstrated through anomalous effect (AHE). First-principles calculations indicate negligible spin FeRh AFM due to time-reversal symmetry breaking. To date, contribution of remains unexamined context AHE measurements. This study presents temperature-dependent and carrier transport properties thin films across AFM-to-FM...
A highly sensitive microgravimetric lectinbiosensor has been developed using carbohydrate-stabilized Au nanoparticles as a signal amplifier; mannose-stabilized formed sandwich-type complex with the target Con specifically bound to mannose-modified QCM electrode give an amplified frequency response.
Recently, significant progress has been made in increasing the figure-of-merit (ZT) of various nanostructured materials, including thin-film and quantum dot superlattice structures. Studies have focused on size reduction control surface or interface materials since these approaches enhance thermopower phonon scattering Currently, bismuth–tellurium-based semiconductor are widely employed for thermoelectric (TE) devices such as TE energy generators coolers, addition to other sensors, use at...
Two-dimensional (2D) PtSe2 is rapidly emerging as a promising candidate for developing devices that exhibit significantly enhanced thermoelectric power factor because of its thickness-modulation-induced tunable semiconductor-to-semimetal transition characteristic. This interesting phenomenon motivated us to measure the in-plane Seebeck coefficients and electrical conductivities large-area 2D thin films with approximately 2–15 nm thicknesses. We observed an outstanding coefficient ∼73.7 μV/K...
A highly sensitive and stable [Ru(bpy)3]2+ ECL sensor has been fabricated based on the multilayer films of Nafion-stabilized magnetic nanoparticles (Nafion/Fe3O4) formed a platinum electrode surface by means an external magnet.
By defining functional defects in a congenital myasthenic syndrome (CMS), we show that two mutant residues, located binding site region of the acetylcholine receptor (AChR) epsilon subunit, exert opposite effects on ACh and suppress channel gating. Single kinetic analysis reveals first mutation, εN182Y, increases affinity for receptors resting closed state, which promotes sequential occupancy sites discloses rate constants nonmutant αδ site. Studies analogous mutation δ δN187Y, disclose αε...
The effects of grain size and strain on the temperature-dependent thermal transport antimony telluride (Sb2Te3) thin films, controlled using post-annealing temperatures 200°C to 350°C, were investigated 3-omega method. measured total conductivities 400-nm-thick films annealed at 200°C, 250°C, 300°C, 320°C, 350°C determined be 2.0 3.7 W/m · K in 20 300 temperature range. We found that film size, rather than strain, had most prominent effect reduction conductivity. To confirm experimental...