A5063639168- Carbon Nanotubes in Composites
- Metallurgy and Material Forming
- Polymer Nanocomposites and Properties
- Microstructure and Mechanical Properties of Steels
- Metal Alloys Wear and Properties
- Fatigue and fracture mechanics
- Asthma and respiratory diseases
- Advanced Cellulose Research Studies
- Metal Forming Simulation Techniques
- Fiber-reinforced polymer composites
- Nanotechnology research and applications
- Silicone and Siloxane Chemistry
- Erosion and Abrasive Machining
- Graphene research and applications
- Conducting polymers and applications
- Tribology and Wear Analysis
- Engineering Applied Research
- Polymer Nanocomposite Synthesis and Irradiation
- Membrane Separation Technologies
- Synthesis and properties of polymers
- Electrospun Nanofibers in Biomedical Applications
- Material Properties and Applications
- Nanopore and Nanochannel Transport Studies
- Allergic Rhinitis and Sensitization
- Hepatitis C virus research
Saitama Medical University
2013-2024
Shinshu University
2014-2024
Institute for Sustainable Plant Protection
2024
Saitama Medical University Hospital
2021
Ōtani University
2010-2020
Nagano University
2020
General Department of Preventive Medicine
2018
Hokkaido University
2000-2017
Japan Tobacco (Japan)
2006-2014
Nissin Kogyo (Japan)
2003-2013
Carbon nanotubes (CNTs) are attracting much interest as fibrous materials for reinforcing metal matrix composites due to their remarkable properties such very high strength, elastic modulus, flexibility and aspect ratios. However, the intricate entanglements of long fine CNTs resulting aggregation, disentanglement uniform dispersion in aluminium (Al) matrices have been found quite difficult. In addition, poor wetting property carbon Al has a great obstacle forming composites. On totally new...
Abstract Clean water obtained by desalinating sea or purifying wastewater, constitutes a major technological objective in the so-called century. In this work, high-performance reverse osmosis (RO) composite thin membrane using multi-walled carbon nanotubes (MWCNT) and aromatic polyamide (PA), was successfully prepared interfacial polymerization. The effect of MWCNT on chlorine resistance, antifouling desalination performances nanocomposite membranes were studied. We found that suitable...
Abstract The scarcity of oil resources is going to become one the main factors threatening stability global economy. To avoid an energy crisis in future, it essential increase extraction much deeper wells, experiencing higher temperatures and pressures. Exploring these areas will demand novel robust materials. Rubber sealants, or O‐rings, are especially key components enabling probing production so that temperature pressure reservoirs reached. In this account, demonstrated carbon nanotubes...
High-performance sealants using rubber composites containing multiwalled carbon nanotubes (MWNTs) were developed in order to probe and excavate oil deeper wells. However, the stress–strain behavior reinforcing mechanism of highly concentrated MWNT/rubber subjected large deformation remain largely unexplored. Here we report on complete relationships under uniaxial tension before rupture, with a suggestion novel reinforcement effect high concentration MWNTs. A theoretical model is understand...
The dynamic moduli, E′ and E″, tan δ for PET–CR, PET–EPDM, PET–UR composites with unidirectional short fibers were studied as a function of temperature by using Rheovibron. dependence showed three peaks PET–elastomer composites. at the low corresponded to main dispersion respective matrixes peak about 140°C α-dispersion PET fiber. A small broad observed between 60 120°C may be caused relaxation interface region matrix. longitudinal storage modulus composite E was given parallel model...
Carbon nanotubes/polyamide (PA) nanocomposite thin films have become very attractive as reverse osmosis (RO) membranes. In this work, we used molecular dynamics to simulate the influence of single walled carbon nanotubes (SWCNTs) in polyamide structure a model case RO membrane. It was found that addition SWCNTs decreases pore size composite membrane and increases Na Cl ion rejection. Analysis radial distribution function water confined pores membranes shows SWCNT+PA also exhibit smaller...
We report a new series of hepatitis C virus NS5B RNA polymerase inhibitors containing conformationally constrained tetracyclic scaffold. SAR studies led to the identification 6,7-dihydro-5H-benzo[5,6][1,4]diazepino[7,1-a]indoles (19 and 20) bearing basic pendent group with high biochemical cellular potencies. These compounds displayed very small shift in potency when replicon assay was performed presence human serum albumin.
Polyamide (PA) membranes comprise most of the reverse osmosis currently used for desalination and water purification. However, their fouling mechanisms with natural organic matter (NOM) is still not completely understood. In this work, we studied three different types PA membranes: a laboratory made PA, commercial multiwalled carbon nanotube (CNT-PA nanocomposite membrane during cross-flow measurements by NaCl solutions including NOM, humic acid (HA), or alginate, respectively). Molecular...
Abstract Chlorine resistant reverse osmosis (RO) membranes were fabricated using a multi-walled carbon nanotube-polyamide (MWCNT-PA) nanocomposite. The separation performance of these after chlorine exposure (4800 ppm·h) remained unchanged (99.9%) but was drastically reduced to 82% in the absence MWCNT. It observed that surface roughness changed significantly by adding Moreover, containing MWCNT fractions above 12.5 wt.% clearly improved degradation resistance against exposure, with an...
Abstract The dynamic moduli, E′ and E″, tan δ for nylon–CR PET–CR composites with unidirectional short fibers were studied as a function of temperature by using Rheovibron. dependence showed two dispersion peaks composite. peak at −28°C corresponded to the main CR 100°C α‐dispersion nylon 6. For PET‐CR composite, in addition individual PET, small broad was observed about 90°C. angular indicated that assumed good orientation. storage modulus given parallel model E ′ = V f + m ., where c ,...
We demonstrate efficient antifouling and low protein adhesion of multiwalled carbon nanotubes-polyamide nanocomposite (MWCNT-PA) reverse-osmosis (RO) membranes by combining experimental theoretical studies using molecular dynamics (MD) simulations. Fluorescein isothiocyanate (FITC)-labeled bovine serum albumin (FITC-BSA) was used for the fouling studies. The observed in real time a crossflow system coupled to fluorescence microscope. Notably, it that BSA anchoring on smooth MWCNT-PA membrane...
Interfacial shear strengths or static frictions between carbon nanotubes (CNT) in contact at different cross angles are studied by using atomic mechanics. It is shown that the axial interfacial parallel CNTs commensurate two orders of magnitude greater than those incommensurate. This strong chiral dependence not surprising and similar to friction graphite basal planes. In contrast, we find crossly contacted CNT pairs much less dependent upon chirality. The estimated values strengths, ranging...
Eosinophils recognize various stimuli, such as cytokines, chemokines, immunoglobulins, complement, and external pathogens, resulting in their accumulation mucosal tissues the progression of inflammation. are also involved innate Th2-type immune responses mediated through endogenous danger signals, including IL-33, uric acid (UA), or ATP, non-sensitized mice exposed to environmental allergens. However, mechanism eosinophil these signals remains insufficiently understood.We examined migration,...