Institution
Tokyo University of Science
Education•Tokyo, Japan•
About: Tokyo University of Science is a education organization based out in Tokyo, Japan. It is known for research contribution in the topics: Catalysis & Thin film. The organization has 15800 authors who have published 24147 publications receiving 438081 citations. The organization is also known as: Tōkyō Rika Daigaku & Science University of Tokyo.
Papers published on a yearly basis
Papers
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174 citations
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TL;DR: Graphene-based semiconductors nanocomposites were synthesized via a single-step photocatalytic reduction process in this article, which demonstrated that a range of photocatalyststs, not just TiO2, can be used to reduce and incorporate graphene oxide (RGO), which has higher photoelectrocatalytic efficiencies than their parent materials.
174 citations
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TL;DR: It is shown that three-dimensional micro-optical components can be embedded in a photosensitive glass by a femtosecond laser, and it is found that postannealing smoothes the surfaces of the fabricated hollow structures, resulting in great improvement of their optical properties.
Abstract: We show that three-dimensional micro-optical components can be embedded in a photosensitive glass by a femtosecond (fs) laser. After exposure to the tightly focused fs laser beam, latent images are written inside the sample. Modified regions are developed by a postbaking process and then preferentially etched away in a 10%-dilute solution of hydrofluoric acid. After this process, hollow internal structures are formed that act as a mirror and a beam splitter. Furthermore, we find that postannealing smoothes the surfaces of the fabricated hollow structures, resulting in great improvement of their optical properties.
174 citations
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TL;DR: In this paper, a z-scheme photocatalyst system for water splitting under visible light irradiation, especially focused on the systems consisting of SrTiO3:Rh of a H2-evolving photocatalysts, and O2 evolving photocatalysers with and without electron mediators.
Abstract: Water splitting to produce H2 using sunlight is a form of artificial photosynthesis in that light energy is converted to chemical energy. As such, water splitting using powdered photocatalysts has attracted attention in the framework of energy and environmental issues. This article reviews z-scheme photocatalyst systems for water splitting under visible light irradiation, especially focused on the systems consisting of SrTiO3:Rh of a H2-evolving photocatalyst, and O2-evolving photocatalysts with and without electron mediators. These photocatalyst systems showed activities for water splitting into H2 and O2 in a stoichiometric amount under visible light irradiation and even under sunlight irradiation. The photocatalytic activity was sensitive to pH. The optimum pH was 2.4 when iron ions were used as electron mediators. Co-catalysts also affected the activity. The photodeposited Ru co-catalyst gave an excellent performance. The best performance achieved by the pH adjustment and the selection of a co-catalyst was obtained mainly by suppression of back reactions to form H2O from evolved H2 and O2.
174 citations
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TL;DR: It is suggested that O-fucosylation catalysed by Neurotic is also involved in the Fringe-independent activities of Notch and may provide a novel on-off mechanism that regulates ligand-receptor interactions.
Abstract: Notch signalling, which is highly conserved from nematodes to mammals,
plays crucial roles in many developmental processes. In the
Drosophila embryo, deficiency in Notch signalling results in neural
hyperplasia, commonly referred to as the neurogenic phenotype. We identify a
novel maternal neurogenic gene, neurotic , and show that it is
essential for Notch signalling. neurotic encodes a
Drosophila homolog of mammalian GDP-fucose protein
O -fucosyltransferase, which adds fucose sugar to epidermal growth
factor-like repeats and is known to play a crucial role in Notch signalling.
neurotic functions in a cell-autonomous manner, and genetic epistasis
tests reveal that Neurotic is required for the activity of the full-length but
not an activated form of Notch. Further, we show that neurotic is
required for Fringe activity, which encodes a fucose-specific β1, 3
N -acetylglucosaminyltransferase, previously shown to modulate Notch
receptor activity. Finally, Neurotic is essential for the physical interaction
of Notch with its ligand Delta, and for the ability of Fringe to modulate this
interaction in Drosophila cultured cells. We present an unprecedented
example of an absolute requirement of a protein glycosylation event for a
ligand-receptor interaction. Our results suggest that O -fucosylation
catalysed by Neurotic is also involved in the Fringe-independent activities of
Notch and may provide a novel on-off mechanism that regulates ligand-receptor
interactions.
173 citations
Authors
Showing all 15878 results
Name | H-index | Papers | Citations |
---|---|---|---|
Kazunori Kataoka | 138 | 908 | 70412 |
Yoichiro Iwakura | 129 | 705 | 64041 |
Kouji Matsushima | 124 | 590 | 56995 |
Masaki Ishitsuka | 103 | 624 | 39383 |
Shinsuke Tanabe | 98 | 722 | 37445 |
Tatsumi Koi | 97 | 411 | 50222 |
Hirofumi Akagi | 94 | 618 | 43179 |
Clifford A. Lowell | 91 | 258 | 23538 |
Teruo Okano | 91 | 605 | 28346 |
László Á. Gergely | 89 | 426 | 60674 |
T. Sumiyoshi | 88 | 855 | 62277 |
Toshinori Nakayama | 86 | 405 | 25275 |
Akihiko Kudo | 86 | 328 | 39475 |
Hans-Joachim Gabius | 85 | 699 | 28085 |
Motohide Tamura | 85 | 1007 | 32725 |