Research Highlight

  1. Enhanced Electron Transfer Mediated by Conjugated Polyelectrolyte and Its Application to Washing-Free DNA Detection

    Ji-Eun Jeong (박사과정) Direct electron transfer between a redox label and an electrode requires a very short working distance (<1-2 nm), and in general an affinity biosensor based on the direct electron transfer requires a finely smoothed ...
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  2. Vertex-reinforced PtCuCo ternary nanoframes as efficient and stable electrocatalysts for the oxygen reduction reaction and the methanol oxidation reaction

    Taehyun Kwon(박사과정) / Minki Jun (박사과정) Noble metal binary alloy nanoframes have emerged as a new class of fuel cell electrocatalysts because of their intrinsic high catalytic surface area and accompanied high catalytic activity. Howe...
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  3. Molecular Role of Ca2+ and Hard Divalent Metal Cations on Accelerated Fibrillation and Interfibrillar Aggregation of α-Synuclein

    Jong Yoon Han(박사과정) / Tae Su Choi(Post doc.) α-Synuclein (αSyn) is an intrinsically disordered protein, the aggregation of which is highly related to the pathology of diverse α-synucleinopathies. Various hard divalent metal cations have...
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  4. Supramolecular Modulation of Structural Polymorphism in Pathogenic α-Synuclein Fibrils Using Cu(II) Coordination

    Tae Su Choi(Post doc.) / Jong Yoon Han(박사과정) Structural variation of α-synuclein (αSyn) fibrils has been linked to the diverse etiologies of synucleinopathies. However, little is known about what specific mechanism provides αSyn fibrils...
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  5. Recent Progress in the Chemistry of Pyridazinones for Functional Group Transformations

    Seohyun Kang(석사과정) While N-hetereocycles have received significant attention in organic synthesis and other research fields, the chemistry of pyridazine, six-membered aromatic ring with adjacent two nitrogen atoms, and its derivatives ...
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  6. Maskless Arbitrary Writing of Molecular Tunnel Junctions

    Seo Eun Byeon(석사과정) / Miso Kim(석사과정) Since fabricating geometrically well-defined, noninvasive, and compliant electrical contacts over molecular monolayers is difficult, creating molecular-scale electronic devices that function in h...
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  7. Single Component Organic Solar Cells Based on Oligothiophene-Fullerene Conjugate

    Thanh Luan Nguyen(Post doc.) A new donor (D)–acceptor (A) conjugate, benzodithiophene-rhodanine–[6,6]-phenyl-C61 butyric acid methyl ester (BDTRh–PCBM) comprising three covalently linked blocks, one of p-type oligothiophene containing BDTRh...
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  8. Lanthanide metal-assisted synthesis of rhombic dodecahedral MNi (M=Ir and Pt) nanoframes toward efficient oxygen evolution catalysis

    Haneul Jin(박사과정) / Yongju Hong(박사과정) Mixed metal alloy nanoframeworks have shown a great promise as electrocatalysts in water electrolyzers and fuel cells. Although a limited number of mixed metal alloy nanoframeworks have been synt...
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  9. Radially Phase Segregated PtCu@PtCuNi Dendrite@Frame Nanocatalyst for the Oxygen Reduction Reaction

    Hyukbu Kwon(석사과정) / Jongsik Park(박사과정) Pt-based alloy nanoframes have shown a great potential as electrocatalysts toward oxygen reduction reaction (ORR) in fuel cells. However, the intrinsically infirm nanoframes could be severely d...
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  10. Collision Cross Sections and Ion Structures: Development of a General Calculation Method via High-quality Ion Mobility Measurements and Theoretical Modeling

    Ion mobility mass spectrometry (IM-MS) has become an important tool for the structural investigation of ions in the gas phase. Accurate theoretical evaluation of ion collision cross sections (CCSs) is essential for the effective application...
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  11. Total Syntheses of Arcyriaflavin A and Calothrixin B Using 2,2′-Bisindole-3-acetic Acid Derivative as a Common Intermediate

    Sungjong Lee(석사과정) / Kyung-Hee Kim(박사과정) A new protocol for the synthesis of 2,2′-bisindole-3-acetic acid derivatives from aldimines derived from 2-aminocinnamic acid derivatives and indole-2-carboxaldehyde was developed via a cyani...
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  12. Synthesis, Characterization, and Efficient Catalytic Activities of a Nickel(II) Porphyrin: Remarkable Solvent and Substrate Effects on Participation of Multiple Active Oxidants

    A new nickel(II) porphyrin complex, [NiII(porp)] (1), has been synthesized and characterized by 1H NMR, 13C NMR and mass spectrometry analysis. This NiII porphyrin complex 1 quantitatively catalyzed the epoxidation reaction of a wide range o...
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  13. Molecular Insights into Human Serum Albumin as a Receptor of Amyloid-β in the Extracellular Region

    Tae Su Choi(Post doc.) Regulation of amyloid-β (Aβ) aggregation by metal ions and proteins is essential for understanding the pathology of Alzheimer’s disease (AD). Human serum albumin (HSA), a regulator of metal and protein transportation,...
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  14. Two Regioisomeric π-Conjugated Small Molecules: Synthesis, Photophysical, Packing and Optoelectronic Properties

    Two Regioisomeric π-Conjugated Small Molecules: Synthesis, Photophysical, Packing and Optoelectronic Properties Dae Hee Lee(박사과정) / Thanh Luan Nguyen(Post doc.) Two regioisomeric D1-A-D-A-D1 type π-conjugated molecules (1,4-bis{5-[4-(5-f...
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  15. Major Electronic Transition Shift from Bandgap to Localized Surface Plasmon Resonance in CdxHg1-xSe Alloy Nanocrystals

    Dongsun Choi(박사과정) / Bitna Yonn(석사과정) CdxHg1-xSe alloy nanocrystals are obtained from CdSe semiconductor nanocrystals via cation exchange. By varying the composition during the exchange process, the CdxHg1-xSe alloy nanocrystals off...
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  16. Rational Design of In Vivo Tau Tangle-Selective Near Infrared Fluorophores: Expanding the BODIPY Universe

    The elucidation of the cause of Alzheimer’s disease remains one of the greatest questions in neurodegenerative research. The lack of highly reliable low-cost sensors to study the structural changes in key proteins during the progres-sion of ...
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  17. Achieving Highly Efficient Nonfullerene Organic Solar Cells with Improved Intermolecular Interaction and Open-Circuit Voltage

    A new acceptor–donor–acceptor-structured nonfullerene acceptor ITCC (3,9-bis(4-(1,1-dicyanomethylene)-3-methylene-2-oxo-cyclopenta[b]thiophen)-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d′:2,3-d′]-s-indaceno[1,2-b:5,6-b′]-dithiophene) is...
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  18. Ionic effect on the excited-state proton transfer reactions in aqueous solutions

    Proton dissociation (PD) reactions of weak acids and proton transfer (PT) processes in aqueous solution are strongly influenced by ions. However, a detailed molecular picture that describes how ions affect the rates for PD and PT processes i...
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  19. A conductive porous organic polymer with superprotonic conductivity of a Nafion-type electrolyte

    As potential solid electrolytes in fuel cells, porous organic polymers show compelling proton conductivities (up to ∼10−2 S cm−1), but even higher performance is required for real applications. In this work, we prepared a biphenyl-based orga...
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  20. Quantum optical measurements with undetected photons through vacuum field indistinguishability

    Quantum spectroscopy and imaging with undetected idler photons have been demonstrated by measuring one-photon interference between the corresponding entangled signal fields from two spontaneous parametric down conversion (SPDC) crystals. In ...
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