Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Niwa, Hideharu*; Saito, Makoto*; Kobayashi, Masaki*; Harada, Yoshihisa*; Oshima, Masaharu*; Moriya, Shogo*; Matsubayashi, Katsuyuki*; Nabae, Yuta*; Kuroki, Shigeki*; Ikeda, Takashi; et al.
Journal of Power Sources, 223, p.30 - 35, 2013/02
Times Cited Count：18 Percentile：50.94(Chemistry, Physical)To design non-platinum, inexpensive, but high performance carbon-based cathode catalysts for polymer electrolyte fuel cells, it is important to elucidate the active site for oxygen reduction reaction (ORR). However, it is difficult to directly identify the active site by applying conventional structural or electronic probes to such complex systems. Here, we used C 1
X-ray absorption spectroscopy (XAS) to observe electronic structure of carbon in iron phthalocyanine-based catalysts, and found a signature of edge exposure below the 
edge, whose intensity is well correlated with the ORR activity. These results demonstrate that C 1 XAS can be used to characterize the ORR activity of carbon-based cathode catalysts in terms of the edge exposure.
Imazono, Takashi; Moriya, Naoji*; Harada, Yoshihisa*; Sano, Kazuo*; Koike, Masato
AIP Conference Proceedings 1465, p.38 - 42, 2012/07
Times Cited Count：0 Percentile：0.13(Physics, Applied)Yamada, Hidenori*; Tamada, Taro; Kosaka, Megumi*; Miyata, Kohei*; Fujiki, Shinya*; Tano, Masaru*; Moriya, Masayuki*; Yamanishi, Mamoru*; Honjo, Eijiro; Tada, Horiko*; et al.
Protein Science, 16(7), p.1389 - 1397, 2007/07
Times Cited Count：39 Percentile：59.61(Biochemistry & Molecular Biology)In an attempt to control protein incorporation in a crystal lattice, a leucine zipper-like hydrophobic interface (comprising four leucine residues) was introduced into a helical region (helix 2) of the human pancreatic ribonuclease 1 (RNase 1) that was predicted to form a suitable crystallization interface. Although crystallization of wild type RNase 1 has not yet been reported, the RNase 1 mutant having four leucines (4L-RNase 1) was successfully crystallized under several different conditions. The crystal structures were subsequently determined by X-ray crystallography by molecular replacement using the structure of bovine RNase A. The overall structure of 4L-RNase 1 is quite similar to that of the bovine RNase A, and the introduced leucine residues formed the designed crystal interface. To further characterize the role of the introduced leucine residues in crystallization of RNase 1, the number of leucines was reduced to three or two (3L- and 2L-RNase 1, respectively). Both mutants crystallized and a similar hydrophobic interface as in 4L-RNase 1 was observed. A related approach to engineer crystal contacts at helix 3 of RNase 1 (N4L-RNase 1) was also evaluated. N4L-RNase 1 also successfully crystallized, and formed the expected hydrophobic packing interface. These results suggest that appropriate introduction of a leucine zipper-like hydrophobic interface can promote intra molecular symmetry for more efficient protein crystallization in crystal lattice engineering efforts.
C-Labeled Kanechlor-300,-400,-500 and -600Moriya, Takashi; ; ;
JAERI-M 8071, 17 Pages, 1979/01
no abstracts in English
C
with high specific activityMoriya, Takashi; ;
Radioisotopes, 27(5), p.263 - 265, 1978/05
no abstracts in English
C-labeled 2,4,2',5'-tetrachlorobiphenylMoriya, Takashi
Journal of Labelled Compounds and Radiopharmaceuticals, 14(4), p.625 - 631, 1978/04
Times Cited Count：3no abstracts in English
Hoizumi, Kiyoshi; Moriya, Takashi
J.Labelled Compd., 10(3), p.499 - 508, 1974/03
Times Cited Count：7Starting with benzene-U-
C, biphenyl-U-C was synthesized in two steps in approximately 65% yield. Then two kinds of polychlorinated biphenyls-U-C. The yield was more than 35% based on benzene-U-C consumed.
Imazono, Takashi; Sasai, Hiroyuki*; Harada, Yoshihisa*; Iwai, Nobuyuki*; Moriya, Naoji*; Sano, Kazuo*; Suzuki, Yoji; Kado, Masataka; Kawachi, Tetsuya; Koike, Masato
no journal, ,
no abstracts in English
