A5051274611- Adsorption and biosorption for pollutant removal
- Electrochemical Analysis and Applications
- Chemical Synthesis and Characterization
- Liquid Crystal Research Advancements
- Molecular Junctions and Nanostructures
- Spectroscopy and Quantum Chemical Studies
- Hydrogels: synthesis, properties, applications
- Biofield Effects and Biophysics
- Nonlinear Dynamics and Pattern Formation
- Extraction and Separation Processes
- Gold and Silver Nanoparticles Synthesis and Applications
- Radioactive element chemistry and processing
- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Force Microscopy Techniques and Applications
- Epoxy Resin Curing Processes
- Advanced Fiber Optic Sensors
- Electrochemical sensors and biosensors
- Electrostatics and Colloid Interactions
- Magnetic and Electromagnetic Effects
- Surfactants and Colloidal Systems
- Nuclear Physics and Applications
- Adsorption, diffusion, and thermodynamic properties of materials
- Meat and Animal Product Quality
Kyushu University
2011-2024
Nagoya University
1992-2024
National Institute of Advanced Industrial Science and Technology
2012-2023
Mitsubishi Tanabe Pharma Corporation
2010
Institute of Applied Physics
1992-2007
Kyoto University
1994-2000
Fukuoka University
1995
Several kinds of acrylic-acid-grafted-starch (starch/AAc) hydrogels were prepared at room temperature (27°C) by applying 5, 10, 15, 20, and 25 kGy gamma radiation to 15% AAc aqueous solutions containing 7.5, starch. With increment the dose, gel fraction became higher attained maximum (96.5%) 15 kGy, above which got lowered. On other hand, monotonically increased with starch content. Swelling ratios lower for starch/AAc gamma-ray doses so larger contents. Significant promotions swelling...
ABSTRACT Pectin‐[(3‐acrylamidopropyl) trimethylammonium chloride‐ co ‐acrylic acid] hydrogel has been prepared from the aqueous blend solution of pectin, (3‐acrylamidopropyl) chloride (APTAC), and acrylic acid (AAc) by applying gamma radiation different doses (1–25 kGy) 60 Co source. The hydrogels were characterized equilibrium swelling, Fourier transform infrared, differential scanning calorimetry, electron microscopy. used in multielement adsorption it was found that pectin‐(APTAC‐ ‐AAc)...
Ultraweak biophoton emission originates from the generation of reactive oxygen species (ROS) that are produced in mitochondria as by-products cellular respiration. In healthy cells, concentration ROS is minimized by a system biological antioxidants. However, heat shock changes equilibrium between oxidative stress and antioxidant activity, is, rapid rise temperature induces ROS. Although rate intensity was observed to increase response elevated temperatures, pretreatment at lower high...
The objective of the work is to synthesize pectin-N, N-Dimethylacrylamide (DMAA) hydrogel by gamma radiation without using any initiators and cross-linking agents. Effect doses on gel fraction equilibrium swelling as a function pH were studied, 5 kGy dose was found be optimum for synthesis. grafting /crosslinking investigated Fourier transform infrared spectroscopy. Thermal properties surface morphology studied differential scanning calorimetry electron microscopy. To study drug release...
We study biophoton emission from red beans (Vigna angularis) during germination and seedling stages under drought stress. Strong photon is observed at the root apex when are subjected to dry condition. The spatial distribution of broader than that due application strong salt stress reported previously [T. Ohya et al.: Jpn. J. Appl. Phys. 39 (2000) 3696]. When they rewatered, them again observed. As their damage weaker, intensity weaker. Photon damaged roots indicates physiological response...
The optical detection of the stress damage to plants by NaCl solutions was attempted during germination a seed and growth root. We compared photon intensity red beans before after treatment found that decreased as concentration increased. For saturated (4.5 M), however, observed drastically increased, simultaneous destruction cell membranes observed. biophoton emission from showed characteristic change with salt concentrations. When applied at an early stage, their root elongations were...
The lateral water movement in the intact stem of a transpiring soybean plant was analyzed quantitatively by real-time measurement system utilizing labeled water, H(2)(15)O and gamma ray detectors. A large volume escaping from xylem vessels during its transport detected. escape not influenced evaporation surface or mass flow sieve tubes. It assumed that total amount transported through kept almost completely constant along internode. As result, most escaped found to re-enter vessels, i.e....
Selective Hg(II) adsorption from aqueous solutions of and Pb(II) using hydrolyzed acrylamide (AAm)-grafted polyethylene terephthalate (PET) films was examined to explore the potential reuse waste PET materials. recovery a mixture soft acids with similar structure, such as Pb(II), is important allow recovered Hg(II). An adsorbent for selective prepared by γ-ray-induced grafting AAm onto followed partial hydrolysis through KOH treatment. The capacity AAm-grafted ions increased 15 70 mg/g after...
Abstract To solve the “neutron lifetime puzzle,” where measured neutron lifetimes differ depending on measurement methods, an experiment with a pulsed beam at J-PARC is in progress. In this experiment, neutrons are bunched into 40-cm lengths using spin flip chopper (SFC), statistical sensitivity was limited by aperture size of SFC. The SFC comprises three sets magnetic supermirrors and two resonant flippers. paper, we discuss upgrade to enlarge apertures With upgrade, statistics per unit...
Acrylic acid (AAc) grafted polyethylene terephthalate (PET) films were prepared by γ irradiation. The graft showed little metal ion adsorption due to compact structure of the chains as shown scanning electron microscopy (SEM) images which restricted access ions functional groups. Therefore, modified with KOH treatment for expansion facilitate used study selective Cu 2+ from aqueous solution containing , Co and Ni . Langmuir Freundlich isotherm models interpretation equilibrium data model...
Through experiments, we studied defect turbulence, a type of spatiotemporal chaos in planar systems nematic liquid crystals, to clarify the chaotic advection weak turbulence. In large aspect ratio, structural relaxation, which is characterized by dynamic structure factor, exhibits long-period oscillation that described well combination simple exponential relaxation and underdamped oscillation. The arises as result roll modulation while damped manifest repetitive gliding pairs local area....
Raman scattering experiment was carried out simultaneously with weight measurement during the dehydration process of polyacrylamide (PAAm) gel. Anomalies in spectrum were observed when time dependence altered: around first characteristic time, a shoulder emerged on skirt low-lying diffusive central mode, and then second one, changed into peak (which resembled “boson peak" commonly glass) addition to disappearance mode an O–H stretching mode. The correlation between spectral change...
Simultaneous measurements of the area (volume) and mass change were carried out in heat- pressure-treated egg white during process gel-to-glass-like state transition. The calculated density these two specimens showed quite different time variations; heat-treated specimen remained almost constant, while that one changed considerably. Moreover, scanning electron microscopy observations revealed surface structure gel is larger more coarse than one, suggesting a close relationship between...
Gold nano-particle (AuNP) dispersed water solution was prepared directly from high-purity Au electrodes in hydrogen peroxide (H2O2) by plasma (SP) processing. With 5 min SP treatment, about 0.01 wt% of AuNP 50 mL obtained. The average diameter estimated to be 14 nm transmission electron micrograph images. AuNPs kept state for 4 weeks without addition any surfactant. zeta potential resulted between −36 and −51 mV, it suggested the strong negative charge on surface prevented binding each...
Gold nanoparticles (AuNP) were prepared by a solution plasma process in the presence of H2O2, and they dispersed an aqueous without any stabilizer generally used. The dispersion stability AuNP was evaluated capillary zone electrophoresis (CZE). An anionic broad peak detected with CZE based on its wide variations size net charge. also suggests that well solution. from viewpoints long-term dispersion, salt concentration, organic co-solvent. attributed to successfully for at least 55 weeks...