Institution
Japanese Ministry of International Trade and Industry
About: Japanese Ministry of International Trade and Industry is a based out in . It is known for research contribution in the topics: Catalysis & Ribozyme. The organization has 2577 authors who have published 2474 publications receiving 57825 citations.
Topics: Catalysis, Ribozyme, Thin film, Aqueous solution, Oxide
Papers published on a yearly basis
Papers
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TL;DR: An artificial crystal structure has been fabricated exhibiting a full three-dimensional photonic bandgap effect at optical communication wavelengths, encouraging us to create an ultra-small optical integrated circuit including a three- dimensional photonic crystal waveguide with a sharp bend.
Abstract: An artificial crystal structure has been fabricated exhibiting a full three-dimensional photonic bandgap effect at optical communication wavelengths. The photonic crystal was constructed by stacking 0.7-micrometer period semiconductor stripes with the accuracy of 30 nanometers by advanced wafer-fusion technique. A bandgap effect of more than 40 decibels (which corresponds to 99.99% reflection) was successfully achieved. The result encourages us to create an ultra-small optical integrated circuit including a three-dimensional photonic crystal waveguide with a sharp bend.
1,033 citations
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TL;DR: It is demonstrated that DL-TBOA is, so far, the most potent competitive blocker of glutamate transporters and should be a useful tool for investigating the physiological roles oftransporters.
Abstract: DL-threo-beta-Benzyloxyaspartate (DL-TBOA), a novel derivative of DL-threo-beta-hydroxyaspartate, was synthesized and examined as an inhibitor of sodium-dependent glutamate/aspartate (excitatory amino acid) transporters. DL-TBOA inhibited the uptake of [14C]glutamate in COS-1 cells expressing the human excitatory amino acid transporter-1 (EAAT1) (Ki = 42 microM) with almost the same potency as DL-threo-beta-hydroxyaspartate (Ki = 58 microM). With regard to the human excitatory amino acid transporter-2 (EAAT2), the inhibitory effect of DL-TBOA (Ki = 5.7 microM) was much more potent than that of dihydrokainate (Ki = 79 microM), which is well known as a selective blocker of this subtype. Electrophysiologically, DL-TBOA induced no detectable inward currents in Xenopus laevis oocytes expressing human EAAT1 or EAAT2. However, it significantly reduced the glutamate-induced currents, indicating the prevention of transport. The dose-response curve of glutamate was shifted by adding DL-TBOA without a significant change in the maximum current. The Kb values for human EAAT1 and EAAT2 expressed in X. laevis oocytes were 9.0 microM and 116 nM, respectively. These results demonstrated that DL-TBOA is, so far, the most potent competitive blocker of glutamate transporters. DL-TBOA did not show any significant effects on either the ionotropic or metabotropic glutamate receptors. Moreover, DL-TBOA is chemically much more stable than its benzoyl analog, a previously reported blocker of excitatory amino acid transporters; therefore, DL-TBOA should be a useful tool for investigating the physiological roles of transporters.
570 citations
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TL;DR: The use of the single-phase, non-linear, viscoelastic tissue model is recommended for applications in registration, surgical operation planning and training systems as well as a control system of an image-guided surgical robot.
537 citations
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TL;DR: This paper attempts to show that previously proposed hyper-viscoelastic constitutive constitutive model of brain tissue can be applied to simulating surgical procedures, and an in vivo indentation experiment is described.
532 citations
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TL;DR: In this article, the effect of metal oxide support on the catalytic activity of gold for CO oxidation was investigated and it was shown that the perimeter interface around gold particles in contact with the metal oxide supports appears to be essential for the genesis of high catalytic activities at low temperatures.
Abstract: In order to clarify the effect of metal oxide support on the catalytic activity of gold for CO oxidation, gold has been deposited on SiO2 with high dispersion by chemical vapor deposition (CVD) of an organo-gold complex. Comparison of Au/SiO2 with Au/Al2O3 and Au/TiO2, which were prepared by both CVD and liquid phase methods, showed that there were no appreciable differences in their catalytic activities as far as gold is deposited as nanoparticles with strong interaction. The perimeter interface around gold particles in contact with the metal oxide supports appears to be essential for the genesis of high catalytic activities at low temperatures.
471 citations
Authors
Showing all 2577 results
Name | H-index | Papers | Citations |
---|---|---|---|
Qiang Xu | 117 | 585 | 50151 |
Yoshinori Tokura | 117 | 858 | 70258 |
Mark A. Hlatky | 115 | 553 | 65656 |
Masatake Haruta | 94 | 349 | 41589 |
Katsushi Ikeuchi | 78 | 636 | 20622 |
Susumu Noda | 76 | 672 | 28213 |
Kazuhiro Nagata | 76 | 302 | 27232 |
Charles Maynard | 75 | 393 | 21805 |
W. Douglas Weaver | 75 | 235 | 21913 |
Karim Zaghib | 69 | 533 | 16785 |
Kazuhiro Sayama | 67 | 282 | 18788 |
Ryoji Kanno | 67 | 398 | 19045 |
Pierre Layrolle | 66 | 213 | 14616 |
Kazunari Taira | 65 | 316 | 20921 |
Chengkuo Lee | 64 | 664 | 15643 |