A5006046605- Force Microscopy Techniques and Applications
- Supramolecular Self-Assembly in Materials
- Advanced Photocatalysis Techniques
- 2D Materials and Applications
- Electrochemical Analysis and Applications
- Diatoms and Algae Research
- Quantum Dots Synthesis And Properties
- Polymer Surface Interaction Studies
- Electronic and Structural Properties of Oxides
- Ion-surface interactions and analysis
- Molecular Junctions and Nanostructures
- Diamond and Carbon-based Materials Research
- Ferroelectric and Piezoelectric Materials
- Surface Chemistry and Catalysis
- Electrostatics and Colloid Interactions
- Advanced Thermoelectric Materials and Devices
- Graphene research and applications
- Aluminum Alloy Microstructure Properties
- Near-Field Optical Microscopy
- Inorganic Chemistry and Materials
- Ionic liquids properties and applications
- Metal and Thin Film Mechanics
- Mechanical and Optical Resonators
- Hydrogen embrittlement and corrosion behaviors in metals
- Advanced battery technologies research
Nagoya University
2024-2025
Graduate School USA
2025
Kanazawa University
2018-2024
Transition metal dichalcogenides (TMDs) exhibit unique properties and potential applications when reduced to one-dimensional (1D) nanoribbons (NRs), owing quantum confinement high edge densities. However, effective growth methods for self-aligned TMD NRs are still lacking. We demonstrate a versatile approach lattice-guided of dense, aligned MoS 2 NR arrays via chemical vapor deposition (CVD) on anisotropic sapphire substrates, without tailored surface steps. This method enables the synthesis...
Understanding the mechanisms of self-organization short peptides into two- and three-dimensional architectures are great interest in formation crystalline biomolecular systems their practical applications. Since assembly is a dynamic process, study structural development challenging at submolecular dimensions continuously across an adequate time scale natural biological environment, addition to complexities stemming from labile molecular structures peptides. Self-organization solid binding...
Abstract Self‐organizing solid‐binding peptides on atomically flat solid surfaces offer a unique bio/nano hybrid platform, useful for understanding the basic nature of biology/solid coupling and their practical applications. The surface behavior is determined by molecular folding, which influenced various factors challenging to study. Here, effect charged amino acids studied self‐assembly directed evolution selected graphite‐binding dodecapeptide graphite surface. Two mutations, M6 M8, are...
Superatomic clusters - assemblies of atoms with various sizes, shapes, and compositions can form hierarchical architectures that exhibit emergent electronic properties not found in their individual units. In particular, cubic M
Charge accumulation behavior at the Au–electrolyte interface was visualized by three-dimensional open-loop electric potential microscopy with a varying electrode potential.
Grain boundary (GB) corrosion of Al alloy is often ascribed to the anodic dissolution nanoscale MgZn2 precipitates formed along GB. However, this reaction has not been confirmed by direct observation and does explain subsequent process form a large-scale pit. Here, we clarify these points directly visualizing changes in structures potential (∼local cell) distributions during GB H2SO4 solution open-loop electric microscopy (OL-EPM). The images unambiguously confirm induced immersion into...
Corrosion of Al alloy often starts from the nanoscale corrosion around surface-exposed Al-Fe intermetallic particles (IMPs) and leads to a serious damage limiting its application range in automobile industry. To solve this issue, understanding mechanism IMP is essential, yet it impeded by difficulties directly visualizing distribution reaction activity. Here, difficulty overcomed open-loop electric potential microscopy (OL-EPM) investigate behavior IMPs H2 SO4 solution. The OL-EPM results...
Abstract Small cantilevers with a megahertz-order resonance frequency provide excellent sensitivity and speed in liquid-environment atomic force microscopy (AFM). However, stable accurate oscillation control of small cantilever requires the photothermal excitation, which has hindered their applications to studies on photo-sensitive materials. Here, we develop magnetic excitation system bandwidth wider than 4 MHz, enabling light-free cantilevers. In system, bead is driven by field generated...
A molecular-scale understanding of self-assembled monolayers (SAMs) sulfonate-terminated alkanethiols is crucial for interfacial studies functionalized SAMs and their various applications. However, such an has been difficult to achieve because the lack direct information on these structures in real space. In this study, we investigated sulfonate sodium 11-mercapto-1-undecanesulfonate (MUS) by frequency modulation atomic force microscopy (FM-AFM) liquid. The subnanometer-resolution FM-AFM...
Alzheimer's disease is associated with the aggregation of misfolded neuronal peptide, amyloid-β42 (Aβ42). Evidence has suggested that several reasons are responsible for toxicity caused by Aβ42, including conformational restriction Aβ42. In this study, one toxic conformers which contains a Glu-to-Pro substitution (E22P-Aβ42), was explored using atomic force microscopy and molecular docking to study dynamics. We proposed systematic model fibril formation better understand basis transitions in...
The brookite phase of TiO2 is much less explored than the other two polymorphs, rutile and anatase, despite its potential applications in photo-catalytic CO2 reduction water splitting. first hydration layer surface hydroxyl groups on (210) their structural changes under photo-irradiation have been considered to play significant roles such applications. Hence, this work, we focus studying them at atomic scale using a combination liquid-environment frequency modulation force microscopy...
Layered perovskite oxyhalides Bi4MO8X (M = Nb, Ta; X Cl, Br) are promising visible-light photocatalysts for water splitting, where the polar structure may enhance conductivity of photocarriers. In this study, domain Bi4NbO8Br single crystal was investigated using piezoresponse force microscopy and transmission electron microscope. We observed a rare with ferroelectric 180° in nanoscale ferroelastic 90° domains developed ab plane. also discuss effect these structures on dynamics...
Azide-oligo(ethylene glycol)-terminated self-assembled monolayers (N3-OEG-SAMs) are promising interfacial structures for surface functionalization. Its many potential applications include chemical/bio-sensing and construction of models owing to its cross-coupling activity that originates from the azide group oligo(ethylene glycol) (OEG) units non-specific adsorption resistance. However, there only a few studies limited information, particularly on molecular-scale local activities...
Transition metal dichalcogenides (TMDs) exhibit unique properties and potential applications when reduced to one-dimensional (1D) nanoribbons (NRs), owing quantum confinement high edge densities. However, effective growth methods for self-aligned TMD NRs are still lacking. We demonstrate a versatile approach the lattice-guided of dense, aligned NR arrays via chemical vapor deposition (CVD) on anisotropic sapphire substrates, without need tailored surface steps. This method enables synthesis...
The hard disk medium (HDM) with a carbon overcoat (COC) is fundamental component of drive. conventional test for its corrosion durability, known as the "HOT/WET test," requires considerable time and effort does not provide any local information about corrosion. Here, we address this issue by employing open-loop electric potential microscopy (OL-EPM), measurement technique based on atomic force (AFM), inspection. To explore applicability OL-EPM, observed surface HDMs different COC thicknesses...