Area of research
Biophysics · Spectroscopy
Research interest
Research topics from publications: Understanding the Low-Voltage Hysteresis of Anionic Redox in Na2Mn3O7; Operando EPR for Simultaneous Monitoring of Anionic and Cationic Redox Processes in Li-Rich Metal Oxide Cathodes; Electron spin resonance studies of trityl OX063 at a concentration optimal for DNP; The T Cell Antigen Receptor α Transmembrane Domain Coordinates Triggering through Regulation of Bilayer Immersion and CD3 Subunit Associations; Prospects for Aerobic Photocatalytic Nitrogen Fixation; Identification of Surface-Exposed Protein Radicals and A Substrate Oxidation Site in A-Class Dye-Decolorizing Peroxidase from Thermomonospora curvata; Disruption of Helix-Capping Residues 671 and 674 Reveals a Role in HIV-1 Entry for a Specialized Hinge Segment of the Membrane Proximal External Region of gp41; The efficiency of DPPH as a polarising agent for DNP-NMR spectroscopy; Toward increased concentration sensitivity for continuous wave EPR investigations of spin-labeled biological macromolecules at high fields; Membrane Disruption Mechanism of a Prion Peptide (106–126) Investigated by Atomic Force Microscopy, Raman and Electron Paramagnetic Resonance Spectroscopy. Representative work: The large-voltage hysteresis remains one of the biggest barriers to optimizing Li/Na-ion cathodes using lattice anionic redox reaction, despite their very high energy density and relative low cost. Very recently, a layered sodium cathode Na2Mn3O7 (or Na4/7Mn6/7$\square$1/7O2, $\square$ is vacancy) was reported to have reversible lattice oxygen redox with much suppressed voltage hysteresis. Yet, the structural and electronic structural origin of this small-voltage hysteresis has not been well understood. In this article, through systematic studies using ex situ/in situ electron paramagnetic resonance and X-ray diffraction, we demonstrate that the exceptional small-voltage hysteresis (+ ions f Anionic redox chemistry offers a transformative approach for significantly increasing specific energy capacities of cathodes for rechargeable Li-ion batteries. This study employs operando electron paramagnetic resonance (EPR) to simultaneously monitor the evolution of both transition metal and oxygen redox reactions, as well as their intertwined couplings in Li2MnO3, Li1.2Ni0.2Mn0.6O2, and Li1.2Ni0.13Mn0.54Co0.13O2 cathodes. Reversible O2–/O2n– redox takes place above 3.0 V, which is clearl
Advanced Spectroscopic and Computational Studies of a Cobalt(II) Coordination Polymer with Single-Ion-Magnet Properties
The N-terminal helices of amphiphysin and endophilin have different capabilities of membrane remodeling
Prospects for Aerobic Photocatalytic Nitrogen Fixation
Real-time monitoring of the lithiation process in organic electrode 7,7,8,8-tetracyanoquinodimethane by in situ EPR
The helix 0 of endophilin modifies membrane material properties and induces local curvature
Understanding the Low-Voltage Hysteresis of Anionic Redox in Na<sub>2</sub>Mn<sub>3</sub>O<sub>7</sub>
Topological analysis of the gp41 MPER on lipid bilayers relevant to the metastable HIV-1 envelope prefusion state
Effects of glassing matrix deuteration on the relaxation properties of hyperpolarized 13C spins and free radical electrons at cryogenic temperatures
The T Cell Antigen Receptor α Transmembrane Domain Coordinates Triggering through Regulation of Bilayer Immersion and CD3 Subunit Associations
Lipid Extraction by α-Synuclein Generates Semi-Transmembrane Defects and Lipoprotein Nanoparticles
Cholesterol and phosphatidylethanolamine lipids exert opposite effects on membrane modulations caused by the M2 amphipathic helix
CW EPR and DEER Methods to Determine BCL-2 Family Protein Structure and Interactions: Application of Site-Directed Spin Labeling to BAK Apoptotic Pores
Protein-Lipid Interactions on the HIV Membrane Defined by EPR Spectroscopy
Operando EPR for Simultaneous Monitoring of Anionic and Cationic Redox Processes in Li-Rich Metal Oxide Cathodes
Membrane Disruption Mechanism of a Prion Peptide (106–126) Investigated by Atomic Force Microscopy, Raman and Electron Paramagnetic Resonance Spectroscopy
Influence of Dy3+ and Tb3+ doping on 13C dynamic nuclear polarization
Transition Metal Doping Reveals Link between Electron <i>T</i><sub>1</sub> Reduction and <sup>13</sup>C Dynamic Nuclear Polarization Efficiency
<sup>13</sup>C Dynamic Nuclear Polarization Using a Trimeric Gd<sup>3+</sup> Complex as an Additive
Enhanced Efficiency of <sup>13</sup>C Dynamic Nuclear Polarization by Superparamagnetic Iron Oxide Nanoparticle Doping
Protein-Lipid Interaction at the HIV Membrane Interface Defined by EPR Spectroscopy
Lipid Lateral Ordering Defined by High-Field EPR
Identification of Surface-Exposed Protein Radicals and A Substrate Oxidation Site in A-Class Dye-Decolorizing Peroxidase from <i>Thermomonospora curvata</i>
Toward increased concentration sensitivity for continuous wave EPR investigations of spin-labeled biological macromolecules at high fields
Impact of Ho<sup>3+</sup>-doping on <sup>13</sup>C dynamic nuclear polarization using trityl OX063 free radical
Selective Membrane Disruption Mechanism of an Antibacterial γ-AApeptide Defined by EPR Spectroscopy
NMR and EPR Studies of Free-Radical Intermediates from Experiments Mimicking the Winds on Mars: A Sink for Methane and Other Gases
Selective Membrane Disruption Mechanism of an Antibacterial γ-Aapeptide Defined by EPR Spectroscopy
HIV gp41-Antibody Interaction at the Viral Membrane Interface Defined by EPR Spectroscopy
Membrane Interaction of an Anti-Bacterial AApeptide Defined by EPR Spectroscopy
Electron spin resonance studies of trityl OX063 at a concentration optimal for DNP