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National Science Review 2021年第6期8卷 80-93页

作者： Shunichiro Ito Masayuki Gon kazuo tanaka Yoshiki Chujo Department of Polymer Chemistry Graduate School of EngineeringKyoto University

Complexation of π-conjugated ligands by metal or semimetal ions leads to the enhancement of the planarity and rigidity of π-conjugated systems. Boron, especially, has played a central role in the design of luminescent main-group complexes. However, these complexes still suffer the disadvantage of aggregation-caused quenching as well as typical organic fluorophores. It has recently been reported that some types of boron complexes exhibit the aggregation-induced emission(AIE) property. Moreover, AIE behavior from complexes and organometallic compounds composed of the other group 13 elements, such as aluminum and gallium, has emerged in this decade. These observations greatly encourage us to develop advanced functional materials based on the group 13 elements. Indeed, recent research has demonstrated that these classes of materials are potentially versatile scaffolds for constructing chromic luminophores,efficiently emissive π-conjugated polymers and so on. This review mainly describes AIE-active group 13 complexes with four-coordinate structures and their application as photo-functional materials. Proposed mechanisms of the origins of AIE behavior are briefly discussed.

关键词： aggregation-induced emission crystallization-induced emission chromism conjugated polymer group 13

Positive Luminescent Sensor for Aerobic Conditions Based on Polyhedral Oligomeric Silsesquioxane Networks

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Chemical Research in Chinese Universities 2021年第1期37卷 162-165页

作者： Kazumasa SUENAGA kazuo tanaka Yoshiki CHUJO Department of Polymer Chemistry Graduate School of EngineeringKyoto UniversityKatsuraNishikyo-kuKyoto615-8510Japan

There are numerous numbers of hypoxia-selective luminescent probes based on oxygen quenching of *** show a unique design for luminescent probes to detect hyperoxia utilizing hybrid networks consisting of aggregation-induced emission(AIE)-active dyes and disulfide *** the initial state,emission from the AIE-active dyes is inducible by suppressing energy-consumable intramolecular motions in the hybrid matrices,while the decrease in intensity was detected by releasing molecular motions corresponded to bond scission at the disulfide ***,it was shown that this process selectively proceeds in *** a result,positive luminescent signals were obtained in hyperoxia.

关键词： Polyhedral oligomeric silsesquioxane(POSS) Network polymer Hypoxia Luminescent probe

GAUSSIAN BRACKETS METHODS

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光电子·激光 1989年第2期 74-76页

作者： kazuo tanaka RD Headquaners CANON Inc.

It is reviewed the use of Gaussian brackets in the analysis on Gaussian beam transformation by an optical system.4 The definition of the Gaussian brackets are given together with generalized Gaussian *** of Gaussian b... 详细信息

关键词： GAUSSIAN BRACKETS METHODS

Natural Cone Formation for Fast Ignition of Laser Fusion

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Chinese Physics Letters 2008年第6期25卷 2151-2153页

作者：杨晓青雷安乐余玮 tanaka kazuo Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai 201800 Institute of Laser Engineering and Graduate School of Engineering Osaka University Osaka 565-0871 dapan

We propose to utilize the leading pulse of a petawatt class laser to create a conic plasma channel in the dense plasmas. This plasma channel could serve as a natural cone to guide the main pulse to the cone tip, as behaves similarly to the physical Au cone. We estimate that the leading pulse of a petawatt laser could create a natural cone with cone tip only about 100 μm away from the edge of compressed core plasma. The natural cone formation should be compatible for a good uniform compression and efficient fast heating of the imploded fuel.

关键词： supernova explosion proto-neutron star shock wave

Comparison of luminescent properties of helicene-like bibenzothiophenes with o-carborane and 5,6-dicarba-nidodecaborane

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Science China Chemistry 2018年第8期61卷 940-946页

作者： Kenta Nishino Kazushi Hashimoto kazuo tanaka Yasuhiro Morisaki Yoshiki Chujo Department of Polymer Chemistry Graduate School of Engineering Kyoto University Department of Applied Chemistry for Environment School of Science and Technology Kwansei Gakuin University

This article describes comparison of the anchoring effect on electronic properties of the helicene-like bibenzothiophene between o-carborane and 5,6-dicarba-nido-decaborane. The o-carborane and nido-decaborane-fused bibenzothiophenes were simultaneously obtained in the same reaction and successfully isolated. Initially, the X-ray single crystal analysis revealed that the helicene-like distorted structure was realized in the nido-decaborane-fused bibenzothiophene. From optical measurements in the solution state, distinct different characteristics depending on the type of anchors were observed. It was summarized that the absorption and luminescent properties originated from weak π-conjugation at the bibenzothiophene moiety in the o-carboranefused compound were obtained, whereas robust π-conjugation and significant emission from the intramolecular charge transfer state were detected from the nido-decaborane-fused compound. These data can be explained by the theoretical results that π-conjugation was restrictedly developed within the bibenzothiophene moiety in frontier orbitals of the o-carborane-fused compound. In contrast, π-conjugation can be constructed even through the distorted bibenzothiophene because of the nido-decaborane unit. Moreover, the intramolecular charge transfer state should be realized because of electronic interaction involving the nido-decaborane unit in the excited state. Furthermore, it was demonstrated that the nido-decaborane-fused compound possessed solid-state emission and mechanochromic luminescent properties. The π-conjugation on the distorted structure supported by the nido-decaborane anchor should play a significant role in suppressing aggregation-caused quenching followed by presenting solid-state emission with stimuli responsiveness.

关键词：光性质硼碳电子相互作用混合物电子性质状态抛锚

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Rational design for thermochromic luminescence in amorphous polystyrene films with bis-o-carborane-substituted enhanced conjugated molecule having aggregation-induced luminochromism

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Aggregate

Aggregate 2021年第5期2卷 171-178页

作者： Keisuke Wada Kazushi Hashimoto Junki Ochi kazuo tanaka Yoshiki Chujo Department of Polymer Chemistry Graduate School of EngineeringKyoto University KatsuraNishikyo-kuKyotoJapan

We designed the triad molecule,bis-o-carborane-substituted bis(thienylethynyl)benzene,as a filler for realizing thermochromic luminescent behaviors based on conventional polymer films,such as *** the optical measurements,it was found that the triad can show solid-state emission and dual-luminescent properties with variable intensity ratios depending on *** the mechanistic studies including the experiments with the methyl-substituted model compound,it was revealed that dual emission should be originated from the locally excited and twisted intramolecular charge transfer states,and the latter emission band is significantly enhanced in the solid *** prepared amorphous films containing variable concentrations of the triad with the spin-coating method and investigated optical *** was found that intensity ratios were drastically changed by altering the concentration of the *** increasing the proportion of the triad,aggregation occurred,and emission color was apparently varied through the changes in intensity ratios of the dual emission *** on the aggregationinduced luminochromic property of the triad,thermochromic luminescence was finally realized by heating the amorphous *** rational design for obtaining thermochromic luminescent amorphous films is illustrated in this paper.

关键词： carborane luminescence polystyrene thermochromism

10 PW peak power femtosecond laser pulses at ELI-NP

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High Power Laser Science and Engineering 2022年第3期10卷 25-29页

作者： Christophe Radier Olivier Chalus Mathilde Charbonneau Shanjuhan Thambirajah Guillaume Deschamps Stephane David Julien Barbe Eric Etter Guillaume Matras Sandrine Ricaud Vincent Leroux Caroline Richard François Lureau Andrei Baleanu Romeo Banici Andrei Gradinariu Constantin Caldararu Cristian Capiteanu Andrei Naziru Bogdan Diaconescu Vicentiu Iancu Razvan Dabu Daniel Ursescu Ioan Dancus Calin Alexandru Ur kazuo Atanaka Nicolae Victor Zamfir Thales LAS France 78990ÉlancourtFrance Thales Systems Romania 060071 BucurestiRomania Extreme Light Infrastructure-Nuclear Physics IFIN-HH077125 MagureleRomania Physics Doctoral School Bucharest University077125 MagureleRomania Laser Engineering Osaka UniversityOsaka 565-0871Japan

We report on the generation and delivery of 10.2 PW peak power laser pulses,using the High Power Laser System at the Extreme Laser Infrastructure–Nuclear Physics *** this work we demonstrate for the first time,to the best of our knowledge,the compression and propagation of full energy,full aperture,laser pulses that reach a power level of more than 10 PW.

关键词： high-power laser ultra-short laser pulses

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H∞ Control of T-S Fuzzy Systems Using Piecewise Lyapunov Function based Switching Fuzzy Controller

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H∞ Control of T-S Fuzzy Systems Using Piecewise Lyapunov Fu...

Oral tolerance is inducible during active dextran sulfate sodium-induced colitis

Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference

作者： Ying-Jen Chen Hiroshi Ohtake kazuo tanaka Wen-June Wang Hua O.Wang the Department of Electrical Engineering “Central University” the Department of Mechanical Engineering Boston University the Department of Mechanical Engineering and Intelligent Systems The University of Electro-Communications

In this study,the piecewise Lyapunov function based switching fuzzy controller is proposed to get a relaxed criterion for the H∞ control of continuous T-S fuzzy *** particle swarm optimization（PSO） algorithm,which is useful for nonlinear optimization problem,is utilized with the LMI tool to get the optimal H∞ performance due to that some conditions of the criterion are bilinear with the s-procedure *** simulation results have shown the validity of the proposed H∞ control method.

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World Journal of Gastrointestinal Pharmacology and Therapeutics 2016年第2期7卷 242-253页

作者： Satoshi Ino Chikara Kohda Kosuke Takeshima Hiroki Ishikawa Tomoko Norose Toshiko Yamochi Masafumi Takimoto Hiroshi Takahashi kazuo tanaka Department of Microbiology and Immunology School of Medicine Showa University Department of Pathology and Laboratory Medicine School of Medicine Showa University Division of Gastroenterology Department of Internal Medicine Showa University

AIM:To investigate whether oral tolerance is inducible during the active phase of dextran sulfate sodium(DSS)-induced ***:Colitis was induced in 6-to 8-wk-old female BALB/c mice by the administration of 2%*** induce oral tolerance,mice that received water with DSS[DSS(+)]and mice that received autoclaved water[DSS(-)]were intragastrically(i.g.)administered ovalbumin(OVA)as a tolerogen before systemic challenge with *** this,serum levels of OVA-specific Ig E antibodies were *** mice with activecolitis,CD4+CD25+Foxp3+cell and B10 cell frequencies were evaluated using flow *** m RNA expression profiles were evaluated by reverse transcription real-time polymerase chain ***:Regardless of the presence of DSS colitis,OVA-specific immunoglobulin E concentrations were significantly reduced in mice that were *** OVA compared to mice that were *** PBS[DSS(+):4.4(4.2-9.5)ng/m L vs 83.9(66.1-123.2)ng/m L,P<0.01;DSS(-):27.7(0.1-54.5)ng/m L vs116.5(80.6-213.6)ng/m L,P<0.01].These results demonstrated that oral tolerance was induced in both the presence and absence of *** the spleen and mesenteric lymph nodes(MLN),the frequencies of CD4+CD25+Foxp3+cells and B10 cells,both of which are associated with oral tolerance,did not significantly *** the spleen,interferon-γm RNA expression significantly decreased in mice with colitis[DSS(+):0.42(0.31-0.53)vs DSS(-):1.00(0.84-1.39),P<0.01].The expression levels of other cytokines did not significantly ***:Oral tolerance is inducible during active DSS *** stability of regulatory cell populations in the spleen and MLN in colitis might correlate with these results.

关键词： Cytokine Dextran sulfate sodium colitis Oral tolerance Regulatory T cell Regulatory B cell

Adaptor Protein Crk is Implicated in Mucus Formation in Mucinous Epithelial Ovarian Cancer (mEOC) Cells MCAS

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Chinese Journal of Cancer Research 2008年第2期20卷 121-125页

作者：徐冬梅令狐华 Masumi Tsuda Shinya tanaka kazuo Nagashima Department of Obstetrics & Gynecology First Affiliated HospitalChongqing Medical UniversityChongqing 400016China Department of Obstetrics & Gynecology First Affiliated HospitalChongqing Medical UniversityChongqing 400016China Laboratory of Molecular and Cellular PathologyHokkaido University Graduate School of Medicine N15W7Sapporo 060-8638Japan Laboratory of Molecular and Cellular Pathology Hokkaido University Graduate School of MedicineN15W7Sapporo 060-8638Japan

Objective： The mucus production is an indicator for the histological grade of mucinous epithelial ovarian cancer （mEOC）. In our previous study, Crk expression was targeted in the human ovarian mucinous adenocarcinoma cell line MCAS through RNA interference, resulting in the establishment of Crk knock down cells. These cells exhibited decreased tumorigenic potential both in vitro and in vivo. The purpose of this study was to investigate if there is any change in the capability of forming mucus in these Crk knock down cells. Methods： Cytoplasmic periodic acid Schiff （PAS） staining and particle excluding assay were conducted to assess the mucus formation within and around cells, respectively. Additionally, the amount of mucus formed in tumor lumps from nude mice model was measured following HE and PAS staining. Results： The increased mucus production in Crk knockdown mEOC cells （MCAS） was manifested by increased number of enlarged cells filled with vacuoles-like mucus observed by phase-contrast microscope and cytoplasmic PAS staining; and enhanced mucus secretion was represented by the assembly of pericellular matrix in particle excluding assay and increased mucus area in tumor lumps from nude mice models. Conclusion： The course of carcinogenesis in mEOC is associated with the altered pattern of mucus production and secretion. The adaptor protein Crk is implicated in both pathways.

关键词： Adaptor protein Crk MCAS cell Mucinous epithelial ovarian cancer(Meoc)

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