A5042119645- Carbon Nanotubes in Composites
- Graphene research and applications
- Diamond and Carbon-based Materials Research
- Advancements in Battery Materials
- Fullerene Chemistry and Applications
- Boron and Carbon Nanomaterials Research
- Supercapacitor Materials and Fabrication
- Mechanical and Optical Resonators
- Prostate Cancer Diagnosis and Treatment
- Silicone and Siloxane Chemistry
- Prostate Cancer Treatment and Research
- Nanopore and Nanochannel Transport Studies
- Surface Modification and Superhydrophobicity
- Conducting polymers and applications
- Molecular Junctions and Nanostructures
- Nanotechnology research and applications
- Fiber-reinforced polymer composites
- Graphene and Nanomaterials Applications
- Educational Robotics and Engineering
- Thermal properties of materials
- Urologic and reproductive health conditions
- Luminescence Properties of Advanced Materials
- Semiconductor materials and devices
- Cancer Diagnosis and Treatment
- Intracranial Aneurysms: Treatment and Complications
Kishokai Medical Corporation
2015-2025
Nippon Medical School Hospital
2025
Nippon Medical School
2024
Shinshu University
2014-2023
Nagaoka University of Technology
2012-2022
Aichi Medical University
2014-2021
Makita Corporation (Japan)
2011-2021
Japan Organization of Occupational Health and Safety
2021
New York City Fire Department
2020
Ōtani University
2006-2019
Graphene is a two-dimensional network in which sp(2)-hybridized carbon atoms are arranged two different triangular sub-lattices (A and B). By incorporating nitrogen into graphene, its physico-chemical properties could be significantly altered depending on the doping configuration within sub-lattices. Here, we describe synthesis of large-area, highly-crystalline monolayer N-doped graphene (NG) sheets via atmospheric-pressure chemical vapor deposition, yielding unique N-doping site composed...
We report the use of chemical vapor deposition (CVD) for bulk production (grams per day) long, thin, and highly crystalline graphene ribbons (<20-30 microm in length) exhibiting widths 20-300 nm small thicknesses (2-40 layers). These layers usually exhibit perfect ABAB... stacking as graphite crystals. The structure has been carefully characterized by several techniques electronic transport gas adsorption properties have measured. With this material available to researchers, it should be...
Transcription factor Nrf2 (NF-E2-related 2) regulates a broad cytoprotective response to environmental stresses. Keap1 (Kelch-like ECH-associated protein 1) is an adaptor for cullin3-based ubiquitin E3 ligase and negatively Nrf2. Whereas the Keap1-Nrf2 system plays important roles in oxidative stress metabolism, prevention of diabetes mellitus remain elusive. Here we show that genetic activation signaling by gene hypomorphic knockdown (Keap1flox/-) markedly suppresses onset diabetes. When...
Abstract Despite extensive research for more than 200 years, the experimental isolation of monatomic sulphur chains, which are believed to exhibit a conducting character, has eluded scientists. Here we report synthesis previously unobserved composite material elemental sulphur, consisting chains stabilized in constraining volume carbon nanotube. This one-dimensional phase is confirmed by high-resolution transmission electron microscopy and synchrotron X-ray diffraction. Interestingly, these...
The introduction of foreign atoms, such as nitrogen, into the hexagonal network an sp(2)-hybridized carbon atom monolayer has been demonstrated and constitutes effective tool for tailoring intrinsic properties graphene. Here, we report that boron atoms can be efficiently substituted in Single-layer graphene substitutionally doped with was prepared by mechanical exfoliation boron-doped graphite. X-ray photoelectron spectroscopy amount substitutional graphite ~0.22 %. Raman were spaced 4.76 nm...
A new synthetic method is demonstrated for transforming rice husks into bulk amounts of graphene through its calcination and chemical activation. The sample consists crystalline nano-sized corrugated individual sheets; the material generally contains one, two, or a few layers, domains are typically observed in monolayers containing topological defects within hexagonal lattice edges. Both types graphenes exhibit atomically smooth surfaces As service to our authors readers, this journal...
The electronic structure and spin magnetism for few-layer-graphene nanoribbons synthesized by chemical vapor deposition have been investigated using near-edge x-ray absorption fine (NEXAFS) electron-spin resonance (ESR). For the pristine sample, a prepeak was observed below ${\ensuremath{\pi}}^{\ensuremath{\ast}}$ peak close to Fermi level in NEXAFS, indicating presence of additional states level. intensity this decreased with increasing annealing temperature disappeared after above...
To obtain a clinically useful method of intraoperative monitoring visual evoked potentials (VEPs), the authors developed new light-stimulating device and introduced electroretinography (ERG) to ascertain retinal light stimulation after induction venous anesthesia.The stimulating consists 16 red light-emitting diodes embedded in soft silicone disc avoid deviation axis frontal scalp-flap reflection. After anesthesia with propofol, performed ERG VEP recording 100 patients (200 eyes) who were at...
In this review, we introduce the production methods and applications of carbon nanotubes. Carbon nanotubes are now attracting a broad range scientists industries due to their fascinating physical chemical properties. Focusing on vapor deposition (CVD) method, will briefly review history recent progress synthesis for large-scale double-walled nanotube production. We also describe effective purification that avoid structural damage, discuss electrochemical, composite, medical
We report the preparation of hybrid paperlike films consisting alternating layers graphene (or oxide) and different types multiwalled carbon nanotubes (N-doped MWNTs, B-doped pristine MWNTs). used an efficient self-assembly method in which were functionalized with cationic polyelectrolytes order to make them dispersible water, subsequently these suspensions mixed oxide (GO) suspensions, formed by casting/evaporation processes. The electronic properties (as produced thermally reduced)...
The vibrational properties of double-walled carbon nanotubes (DWNTs) is investigated by high-pressure resonance Raman scattering up to 30 GPa in two different pressure-transmitting media (PTM): paraffin oil and NaCl. protection effect on the outer tube during compression verified .The collapse DWNTs experimentally observed for first time, showing be two-step: onset 1.56 nm diameter at ∼21 followed inner 0.86 a higher pressure ∼25 GPa. This observation supported calculations. We show that...
In this work, we carried out chemical oxidation studies of nitrogen-doped multiwalled carbon nanotubes (CNx-MWCNTs) using potassium permanganate in order to obtain graphene nanoribbons. Reaction parameters such as reaction, reaction time, the oxidizer nanotube mass ratio, and temperature were varied, their effect was carefully analyzed. The presence nitrogen atoms makes CNx-MWCNTs more reactive toward when compared undoped (MWCNTs). High-resolution transmission electron microscopy indicate...
Regulatory T cells (Tregs) play important roles in the suppression of immune responses, including antitumor responses. C-C chemokine receptor 4 (CCR4) is highly expressed on effector Tregs, and anti-CCR4 antibody attracting attention as a novel immunotherapeutic agent for solid tumors. This study aimed to evaluate expression CCR4-positive Tregs (CCR4+Tregs) prostate cancer estimate clinical potential CCR4-targeting therapy cancer.A total 15 radical prostatectomy (RP) specimens 60 biopsy from...
The authors performed fluorescein cerebral angiography in patients after aneurysm clip placement to confirm the patency of parent artery, perforating and other arteries around aneurysm.Twenty-three who underwent surgery were studied. Aneurysms located internal carotid artery 12 patients, middle six, anterior three, basilar bifurcation one, junction vertebral (VA) posterior inferior cerebellar one. After placement, target illuminated using a beam from blue light-emitting diode atop 7-mm...