A5067430509- Electrocatalysts for Energy Conversion
- Natural Fiber Reinforced Composites
- Aortic aneurysm repair treatments
- Elasticity and Material Modeling
- Fuel Cells and Related Materials
- Aortic Disease and Treatment Approaches
- Robotics and Automated Systems
- Carbon Nanotubes in Composites
- Evacuation and Crowd Dynamics
- Polymer crystallization and properties
- Robotic Locomotion and Control
- Rheology and Fluid Dynamics Studies
- Material Properties and Applications
- Coronary Interventions and Diagnostics
- Oxidative Organic Chemistry Reactions
- Corrosion Behavior and Inhibition
- Polymer Nanocomposites and Properties
- Radical Photochemical Reactions
- Fatigue and fracture mechanics
- Synthetic Organic Chemistry Methods
- Advanced battery technologies research
- Catalytic C–H Functionalization Methods
- Hydrogen embrittlement and corrosion behaviors in metals
- Robot Manipulation and Learning
- RNA Research and Splicing
Kanazawa University
2023-2024
Tottori University
2020-2024
Osaka University
2017-2024
Hokkaido University
2021-2024
Doshisha University
2013-2023
Fukuoka University
2023
Japanese Red Cross Asahikawa Hospital
2023
Hirosaki University
2023
Kanagawa University
2014-2022
Chiba University
2018-2022
Abstract According to the Grotthuss–Draper law, light must be absorbed by a substrate initiate photoreaction. There have been several reports, however, on promotion of photoreactions using hypervalent iodine during irradiation with from non‐absorbing region. This contradiction gave rise mystery regarding involving iodine. We demonstrated that photoactivation apparently region proceeds via direct S 0 →T n transition, which has considered forbidden process. Spectroscopic, computational, and...
Abstract Background Cataract surgeries are increasing annually, making appropriate medical management essential. The routine use of systemic antimicrobial agents for preventing surgical site infections lacks strong evidence and may increase the risk drug-resistant bacteria adverse events. This study examined impact discontinuing cefazolin (CEZ) administration during perioperative period cataract surgery on incidence postoperative events costs. Methods Inpatient patients were divided into two...
Benzophenone has an S0 → S1 absorption band at 365 nm. However, the rarely reported Tn transition occurs upon irradiation longer wavelengths. Herein, we employed benzophenone as a catalyst and exploited its in C(sp3)–H alkynylations with hypervalent iodine reagents. The selective excitation prevented alkynylating reagent decomposition, enabling reaction to proceed under mild conditions. mechanism was investigated by spectroscopic computational studies.
Pyrolytically prepared iron and nitrogen codoped carbon (Fe/N/C) catalysts are promising nonprecious metal electrocatalysts for the oxygen reduction reaction (ORR) in fuel cell applications. Fabrication of Fe/N/C with Fe–Nx active sites having precise structures is now required. We developed a strategy thermally controlled construction structure by applying bottom-up synthetic methodology based on N-doped graphene nanoribbon (N-GNR). The preorganized aromatic rings within precursors assist...
Master transcription factors such as TP63 establish super-enhancers (SEs) to drive core transcriptional networks in cancer cells, yet the spatiotemporal regulation of SEs within nucleus remains unknown. The nuclear pore complex (NPC) may tether where RNA export rates are maximal. Here, we report that NUP153, a component NPC, anchors NPC and enhances expression by maximizing mRNA export. This anchoring is mediated through protein-protein interaction between intrinsically disordered regions...
Abstract Hypervalent iodines are widely used in organic chemistry, and their most important feature is the three‐center four‐electron bond. However, there have been few reports on measurement of bond dissociation enthalpy (BDE). Therefore, many cases, BDE estimated by computational calculations. value a calculated usually varies depending choice functional basis set, best method for making an accurate evaluation has not determined. We succeeded determining set to calculate within 0.79% error...
Nuclear pore complexes (NPCs) are the central apparatus of nucleocytoplasmic transport. Disease-specific alterations NPCs contribute to pathogenesis many cancers; however, roles in glioblastoma (GBM) unknown. In this study, we report genomic amplification NUP107, a component NPCs, GBM and show that NUP107 is overexpressed simultaneously with MDM2, critical E3 ligase mediates p53 degradation. Depletion inhibits growth cell lines through protein stabilization. Mechanistically, establish...
Hybrid thermoplastic composites are getting attention in light weight applications. The manufacturing process of hybrid is that discontinuous fiber-reinforced thermoplastics injected onto the textile-reinforced through injection over-molding. key topic this to achieve a reliable interfacial bonding strength, which has strong dependence on molding conditions. As novel approach, we adopted carbon nanotube-based film make nanoscale interconnections between different layers by inserting films...
Abstract We report Cu, Fe, N‐doped carbon nanotubes, (Cu,Fe)−N−CNT, as electrocatalysts for the oxygen reduction reaction (ORR) in acidic media. (Cu,Fe)−N−CNT was prepared using a silica coating method pyrolysis to minimize formation of carbon‐coated metal oxide or carbide nanoparticles, which are known be inactive H 2 O reduction. shows turnover frequency 0.66 e − site −1 s at +0.8 V vs. RHE and yields <1 % ORR with utilization factor active sites 82 %. Kinetic analysis reveals that 4e...
Nonprecious metal electrocatalysts are being explored as alternatives to platinum-group for the oxygen reduction reaction (ORR) which is required cathode materials in fuel cells. Herein, we describe a new method preparing bimetallic nitrogen-containing carbon catalysts with high ORR activity using π-expanded M(salen) precursors. The M/N/C and FeM/N/C were obtained by pyrolysis of mixture support (Vulcan XC-72R) complex precursor. FeCu catalyst prepared from Fe Cu complexes...
Abstract This study focused on realizing fire retardancy for polymer composites by using a cellulosic biofiller and ammonium polyphosphate (APP). The motivation of this was based revealing the mechanism synergetic effect APP determining parameters required achieving V-0 rating in UL94 standard regardless kind system used. As matrix, polypropylene polylactic acid were flammability, burning behavior thermal decomposition investigated through test according to UL-94 standard, cone calorimetric...
Abstract Non‐precious metal electrocatalysts are under investigation as alternatives to platinum‐group for the oxygen reduction reaction (ORR), which is required cathode materials in fuel cells. Herein, we describe a new method synthesis of and nitrogen‐containing carbon (M/N/C) catalysts with high ORR activity using π‐expanded Fe(Salen) precursors. The Fe/N/C were obtained by pyrolysis mixture support (Vulcan XC‐72R) iron complex catalyst prepared from N , N'...
Cortical microcircuits are nonrandomly wired by neurons. As a natural consequence, spikes emitted also patterned in time and space. One of the prominent spike organizations is repetition fixed patterns series across multiple However, several questions remain unsolved, including how precisely sequences repeat, spatially organized, many neurons participate sequences, different functionally linked. To address these questions, we monitored spontaneous hippocampal CA3 ex vivo using high-speed...
Abstract Recently, biomolecular condensates formed through liquid–liquid phase separation have been widely reported to regulate key intracellular processes involved in cell biology and pathogenesis. BRD4 is a nuclear protein instrumental the establishment of phase-separated super-enhancers (SEs) direct transcription important genes. We previously observed that droplets became hydrophobic as their size increase, implying an ability SEs limit ionization water molecules by irradiation. Here, we...
We investigated the efficient use of cellulose to resolve problem depletion fossil resources. In this study, as biomass material, green composite based on natural rubber (NR) and flake-shaped particles (FSCP) was produced. The FSCP were produced by mechanical milling in a planetary ball mill with grinding aid aggregation inhibitor. Moreover, talc mica used compare FSCP. NR mixed vulcanizing agents an internal mixer. And then each filler added compound are follows: stearic acid, zinc oxide,...
Abstract Thermal decomposition and the burning properties of BAMO based propellants with HMX or AN/HMX have been investigated. The heat generated by azide binder initiated accelerated thermal AN. Ammonium perchlorate (AP) lead stearate carbon black significantly altered mechanisms propellants. AP showed an increase in rate a slight decrease pressure exponent. catalyst yielded high value lowest ammonium dichromate also influenced samples. combination copper chromite was most effective on...
Abstract Thermal decomposition of BAMO [bis(azidomethyl)oxetane/tetrahydrofuran copolymer]/HMX composite propellants was studied by isothermal TGA (thermogravimetric analysis) and DSC (differential scanning calorimetry) in helium atmosphere, which showing overall two steps first‐order kinetics. The effects cross‐link ratio on the accelerated aging BAMO/HMX were also measured with infrared spectroscopy gas chromatography. conducted at 347 K for several weeks. a very low made cavity between...
Abstract According to the Grotthuss–Draper law, light must be absorbed by a substrate initiate photoreaction. There have been several reports, however, on promotion of photoreactions using hypervalent iodine during irradiation with from non‐absorbing region. This contradiction gave rise mystery regarding involving iodine. We demonstrated that photoactivation apparently region proceeds via direct S 0 →T n transition, which has considered forbidden process. Spectroscopic, computational, and...
The cyclohexene moiety of the tricyclic 6,7-diaryl-tetrahydro-6H-benzo[c]chromene core palodesangrens could be assembled in a biomimetic and step-economical fashion by Diels–Alder reaction between electron-rich (E)-1,3-butadienylarenes as diene electron-deficient chalcones dienophile. During reduction ketone to corresponding alcohol LiAlH4, mixture endo exo isomers underwent novel diastereoconvergent LiAlH4-mediated isomerization install desired stereochemistry at C10a. Subsequent pyran ring...