- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- Enzyme Structure and Function
- Bacterial Genetics and Biotechnology
- Methane Hydrates and Related Phenomena
- Analytical Chemistry and Sensors
- Astro and Planetary Science
- Organic Electronics and Photovoltaics
- RNA and protein synthesis mechanisms
- Magnetic and transport properties of perovskites and related materials
- Porphyrin and Phthalocyanine Chemistry
- Fullerene Chemistry and Applications
- Advancements in Solid Oxide Fuel Cells
- Protein Structure and Dynamics
- Microplastics and Plastic Pollution
- Biopolymer Synthesis and Applications
- Spacecraft and Cryogenic Technologies
- Biochemical and Molecular Research
- Organic Light-Emitting Diodes Research
- Planetary Science and Exploration
- Geochemistry and Elemental Analysis
- Machine Learning in Materials Science
- Plasma Diagnostics and Applications
- Chemical Looping and Thermochemical Processes
Kyoto University
2022
National Institute of Polar Research
2020-2022
Hokkaido University
1996-2016
Sapporo Science Center
2015
The University of Kitakyushu
2015
Kyushu University
1996-2006
Osaka University
2004
Japan Science and Technology Agency
2004
Nagoya University
2000-2002
Max Planck Society
1984
The thermoacidophilic archaebacterium Sulfolobus solfataricus possesses several DNA binding proteins which may have a histone‐like function. Two particularly dominant species molecular masses of 7 and 10 kDa, respectively. We purified one the small occurs in relatively large amount determined its amino acid sequence. protein is characterized by high lysine content; N‐terminal region residues occur an alternating order: X‐K‐X‐K‐X‐K‐X‐K. sequence does not indicate any obvious homology to those...
Two series of manganese-based oxygen storage materials, BaLnMn(2)O(5+δ) (Ln = Y, Gd, Nd, and La) Ca(2)Al(1-x)GaxMnO(5+δ) (0 ≤x≤ 1), were synthesized characterized to clarify cationic substitution effects on the intake/release behaviors these materials. The thermogravimetric data revealed that isovalent substitutions neighboring active sites for are very effective. For BaLnMn(2)O(5+δ), fully-reduced δ≈ 0 products with larger Ln ions showed intake starting at lower temperatures in flowing O(2)...
The redox characteristics of oxygen storage materials BaLnMn2O5+δ, with Ln = La, Nd, Gd, and Y, were investigated employing the reductive water dissolution by deoxygenated δ 0 form. Gd compounds found to show a capability produce hydrogen gas through at 500 °C, whereas Y compound was unreactive water. It also revealed that reactivity obviously depends upon species: larger ionic size Ln3+, higher BaLnMn2O5.0 samples exhibit. experimentally derived thermodynamic parameters BaLnMn2O5+δ series...
On the basis of sequence comparison thermophilic and mesophilic DNA binding protein HUs, Bacillus stearothermophilus HU (BstHU) seems to gain thermostability with a change in amino acid residues present on molecular surface. To evaluate contribution exchange each BstHU, we constructed three mutants, BstHU-T13A (Thr13 Ala), BstHU-G15E (Gly15 Glu), BstHU-T33L (Thr33 Leu), which acids BstHU were changed corresponding ones subtilis (BsuHU). Stability mutant proteins was determined from...
Crystal structure of double-perovskite type BaYMn2O5+δ was studied by high-temperature synchrotron X-ray diffraction (SXRD) under precisely controlled oxygen pressure to gain deeper understanding the remarkable intake/release capability this oxide. The in situ SXRD analysis at 750 °C revealed that oxide undergoes a distinct structural change upon lowering pressure, from slightly oxygen-deficient "δ = 1" phase (BaYMn2O5.89; P(O2) 103 Pa) an oxygen-vacancy ordered 0.5" (BaYMn2O5.51; 10 Pa)....
Abstract Among the biodegradable plastic specimens (poly-(3-hydroxy-butylate-valerate) (PHB / V), poly-(ε-caprolactone) (PCL), poly-(butylene succinate) (PBS), succinate and adipate) (PBSA), poly-lactide (PLA)) that were placed in soils for 1 year at nineteen sites Japan, with appreciable biodegradation studied transformation of chemical structure by FT-IR, 1H-NMR, 13C-NMR. No differences main absorbency-bands atomic groups recognized FT-IR any tested. However, both 1H-NMR 13C-NMR analyses...
Highly oriented VO2 films are promising candidates for next-generation electronic and optical devices owing to their near-room temperature metal–insulator transition (MIT) (approximately 67 °C). Oriented can be prepared by the topotactic oxidation of V2O3 epitaxial films. However, detailed mechanism that determines orientation thus formed remains unclear. Herein, we report fabrication thin with unique via a film on an R-plane Al2O3 substrate propose V2O3. The had orientation, where (23̅1̅)...
Abstract For multi-color organic electroluminescent (EL) devices, new triphenylamine compounds attached to a spirocyclic framework were prepared from 2,7-bis(diphenylamino)-9-fluorenone. These amines showed exceedingly high Tg’s or thermal stability as well good electrochemical properties and sufficient EL characteristics, allowing practical application.
In this study, the surface of a silica particle modified with reactive amino group was developed as an immobilized carrier for use biosensor material.Silica particles diameter 5 μm were N-2(aminoethyl)-3-amino-propyl trimethoxysilane silane coupling agent at 100 °C heating rates 2.2, 3.0, and 6.0 °C/min.These reacted various concentrations fluorescein isothiocyanate (FITC) room temperature min.FITC-labeled samples exhibited green fluorescence 520 nm, which examined by microscope.The...