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Tanaka, Naritake*; Kimura, Hitoshi*; Faried, A.*; Sakai, Makoto*; Sano, Takaaki*; Inose, Takanori*; Soda, Makoto*; Okada, Koji*; Nakajima, Masanobu*; Miyazaki, Tatsuya*; et al.
Cancer Science, 101(6), p.1487 - 1492, 2010/06
Times Cited Count：12 Percentile：31.77(Oncology)We examined the intracellular localization of cisplatin, a key chemotherapeutic agent, in esophageal cancer cell lines and determined their sensitivity to cisplatin using in-air micro-PIXE. Two human esophageal squamous cell carcinoma (ESCC) cell lines, TE-2 and TE-13, were examined for their response to cisplatin using MTT assay, flow cytometry and DNA fragmentation assays. Real-time reverse transcription-polymerase chain reaction was also used to evaluate the mRNA expression of multidrug resistance protein 2 (MRP2) in both cell lines. Platinum localizations of intracellular and intranuclear were measured using in-air micro-PIXE. TE-2 cells were more sensitive to cisplatin than TE-13 cells. The results of this study suggest that in-air micro-PIXE could be a useful quantitative method for evaluating the cisplatin sensitivity of individual cells. Finally, we speculate that MRP2 in the cell membrane may play an important role in regulating cisplatin sensitivity of ESCC cells.
Ebato, Shota*; Watanabe, Masayuki; Nakajima, Kiyohiko*; Tsuchimoto, Masanobu*
Chemistry Letters, 39(7), p.706 - 707, 2010/05
Times Cited Count：6 Percentile：27.15(Chemistry, Multidisciplinary)A europium(III) complex with tetradentate Schiff base ligands (C
H
)
NH[Eu(3,5Clsalen)] was prepared, and its structure was determined by X-ray crystal structure analysis. The complex has an eight-coordinate mononuclear structure with two Schiff base ligands in a 
form. The complex displays emission bands resulting from ff transitions by excitation at 357 or 234 nm in acetonitrile.
Sn conductor and central solenoid model coils for ITERTakahashi, Yoshikazu; Ando, Toshinari; Hiyama, Tadao; Nakajima, Hideo; Kato, Takashi; Sugimoto, Makoto; Isono, Takaaki; Oshikiri, Masayuki*; Kawano, Katsumi; Koizumi, Norikiyo; et al.
Fusion Engineering and Design, 41(1-4), p.271 - 275, 1998/09
Times Cited Count：4 Percentile：38.68(Nuclear Science & Technology)no abstracts in English
Tanaka, Naritake*; Sakai, Makoto*; Kimura, Hitoshi*; Soda, Makoto*; Nakajima, Masanobu*; Kato, Hiroyuki*; Asao, Takayuki*; Kuwano, Hiroyuki*; Oikawa, Masakazu*; Sato, Takahiro; et al.
no journal, ,
no abstracts in English
Ebato, Shota*; Tsuchimoto, Masanobu*; Watanabe, Masayuki; Nakajima, Kiyohiko*
no journal, ,
Eu complexes of tetradentate Schiff-base ligand(L) have a octa-coordinated structure which ligand perpendicularly coordinated to the Eu center. It has been found that the counter cation, triethylammonium, formed hydrogen bonding with the complex with L. In this presentation, we investigated the Eu complex with L with tetraethylammonium as a counter cation which could not form hydrogen bonding with the complex.
Matsukura, Bui*; Nakajima, Takahito*; Maeda, Yoshihito; Narumi, Kazumasa; Terai, Yoshikazu*; Sado, Taizo*; Hamaya, Kohei*; Miyao, Masanobu*
no journal, ,
no abstracts in English
Toyoda, Saori*; Tsuchimoto, Masanobu*; Watanabe, Masayuki; Nakajima, Kiyohiko*
no journal, ,
Europium(III) complexes with tetradentate Schiff base ligands derived from chiral stilbenediamine, (Et)4N[Eu(L)2] (H2L: Schiff base ligands) were prepared, and the luminescence properties of the crystals were investigated.
Suzuki, Kaori*; Tsuchimoto, Masanobu*; Aoyagi, Noboru; Watanabe, Masayuki; Nakajima, Kiyohiko*
no journal, ,
Mononuclear Y(III), La(III), Gd(III) complexes ((CH)
N[Ln(L)]) with tetradentate Schiff base ligands derived from chiral stilbenediamine were synthesized. The luminescence of these complexes exhibited different in luminescence color between the chiral complexes and the racemic complexes. In this presentation, luminescence properties on the crystalline powder of mononuclear Y(III), La(III), Gd(III) complexes were investigated in detail. It was found out that the different luminescence spectra of crystalline were observed in between chiral and racemic complexes, but the similar luminescence spectra were observed in the ground ones.
Okusa, Masako*; Tsuchimoto, Masanobu*; Watanabe, Masayuki; Nakajima, Kiyohiko*
no journal, ,
Mononuclear Eu(III) complexes with tetradentate schiff base ligands (CH)NH[Eu(L)] (L:3,5Clsalen) exhibits strong red luminescence under ultraviolet light at 360 nm. The derivatives of this complex varies its luminescence in the solid state by the structural change of the ligand or counter cation. In this presentation, luminescence properties of mononuclear europium(III) complex with tetradentate Schiff base ligands and different counter cations such as X=(CH)NH 
, (CH)N in solutions were investigated.
Miyagai, Natsuki*; Tsuchimoto, Masanobu*; Watanabe, Masayuki; Nakajima, Kiyohiko*
no journal, ,
no abstracts in English
Miyagai, Natsuki*; Tsuchimoto, Masanobu*; Watanabe, Masayuki; Nakajima, Kiyohiko*
no journal, ,
Mono-nuclear Eu(III) complexes coordinated by two tetradentate salen type Schiff bases allowed to constitute a meridional eight-coordination structure and demonstrate red luminescence based on a f-f transition by means of ultra-violet irradiation. In this study, ternary and quaternary ammonium cations (XNH or XN) were used for synthesis of mono-nuclear complexes and their luminescence properties were investigated. Especially, the changes of the luminescence intensity with regard to the grind samples were also studied in detail.
