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Yasuyuki Araki
Researcher at Tohoku University
Publications - 170
Citations - 5678
Yasuyuki Araki is an academic researcher from Tohoku University. The author has contributed to research in topics: Photoinduced electron transfer & Electron transfer. The author has an hindex of 42, co-authored 169 publications receiving 5468 citations. Previous affiliations of Yasuyuki Araki include University of Sydney & Chinese Academy of Sciences.
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Journal ArticleDOI
Energy Transfer Followed by Electron Transfer in a Supramolecular Triad Composed of Boron Dipyrrin, Zinc Porphyrin, and Fullerene: A Model for the Photosynthetic Antenna-Reaction Center Complex
Francis D'Souza,Phillip M. Smith,Melvin E. Zandler,Amy L. McCarty,Mitsunari Itou,Yasuyuki Araki,Osamu Ito +6 more
TL;DR: The first example of a working model of the photosynthetic antenna-reaction center complex, constructed via self-assembled supramolecular methodology, is reported, and it is reported that the important feature of the present model system is its relative "simplicity".
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Axially modified gallium phthalocyanines and naphthalocyanines for optical limiting
TL;DR: Gallium phthalocyanines are also among the most promising materials that have been investigated as limiters of intense light and the current series presents a selection of structural modifications useful for varying their nonlinear optical properties.
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Stepwise charge separation and charge recombination in ferrocene-meso,meso-linked porphyrin dimer-fullerene triad.
Hiroshi Imahori,Koichi Tamaki,Yasuyuki Araki,Yuji Sekiguchi,Osamu Ito,Yoshiteru Sakata,Shunichi Fukuzumi +6 more
TL;DR: A meso,meso-linked porphyrin dimer as a light-harvesting chromophore has been incorporated into a photosynthetic multistep electron-transfer model for the first time, including ferrocene as an electrons donor and fullerene as an electron acceptor.
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Long-lived charge-separated state generated in a ferrocene-meso,meso-linked porphyrin trimer-fullerene pentad with a high quantum yield.
Hiroshi Imahori,Yuji Sekiguchi,Yukiyasu Kashiwagi,Tohru Sato,Yasuyuki Araki,Osamu Ito,Hiroko Yamada,Shunichi Fukuzumi +7 more
TL;DR: The final charge-separated state decays, obeying first-order kinetics, with a long lifetime that is comparable with that of the natural bacterial photosynthetic reaction center and the quantum yield remains high, despite the large separation distance between the Fc+ and C60*- moieties.
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Limitation of combination therapy of interferon and ribavirin for older patients with chronic hepatitis C
Yoshiaki Iwasaki,Hiroshi Ikeda,Yasuyuki Araki,Toshiya Osawa,Keiji Kita,Masaharu Ando,Toshinari Shimoe,Kouichi Takaguchi,Noriaki Hashimoto,Toshitsugu Kobatake,Minoru Tomita,Mitsuhiko Kawaguchi,Haruhiko Kobashi,Kohsaku Sakaguchi,Yasushi Shiratori +14 more
TL;DR: Treatment schedule should be modified, or other therapeutic modalities should be considered for older patients with chronic hepatitis C, as a tendency toward a lower sustained virological response rate was seen in the older patients.