KINDAI UNIVERSITY


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河濟 博文カワズミ ヒロフミ

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所属部署名産業理工学部 生物環境化学科 / 産業理工学・産業技術研究科
職名教授/研究科長
学位工学博士
専門レーザ分光分析
ジャンル科学・技術/化学
コメンテータガイドhttps://www.kindai.ac.jp/meikan/321-kawazumi-hirofumi.html
ホームページURLhttp://www.fuk.kindai.ac.jp/education/faculty/
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Last Updated :2020/06/01

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    レーザ分光法によるプラスチック識別装置を研究開発しています。一部は、連携企業と共に経済産業省の助成を受け、大型工場で実用段階にあります。他にも色々な化学センサー技術開発が得意です。

学歴・経歴

学歴

  •  - 1981年, 九州大学, 総合理工学研究科
  •  - 1981年, 九州大学
  •  - 1979年, 九州大学, 理学部
  •  - 1979年, 九州大学

経歴

  •   2006年,  - 現在, 近畿大学産業理工学部教授
  •   2002年,  - 2006年, 近畿大学九州工学部 教授
  •   1995年,  - 2002年, 近畿大学九州工学部 助教授
  •   1991年,  - 1994年, 北九州大学文学部 助教授
  •   1981年,  - 1990年, 九州大学大学院総合理工学研究科 助手
  •   1981年,  - 1990年, 九州大学
  •   1987年09月,  - 1988年08月, 米国アイオワ州立大学エイムズ研究所 博士研究員

研究活動情報

研究分野

  • ナノテク・材料, 分析化学
  • 人文・社会, 科学教育

研究キーワード

  • 環境分析, 環境科学教育, レーザー分光分析化学

論文

  • 混合プラスチックの分別技術, 土田保雄, 河済博文, 河村豊, 10, 6, 507, 512,   2018年06月
  • Enhanced Photocatalytic Degradation of Methyl Orange by Au/TiO2 Nanoparticles under Neutral and Acidic Solutions, Masaharu Tsuji, Kanako Matsuda, Mayu Tanaka, Satsuki Kuboyama, Keiko Uto, Nozomi Wada, Hirofumi Kawazumi, Takeshi Tsuji, Hiroki Ago, Jun-ichiro Hayashi, ChemistrySelect, ChemistrySelect, 3, 1432, 1438,   2018年03月, 査読有り
  • 光学識別法を用いる次世代ソーティング機器の開発動向, 河済 博文, 廃棄物資源循環学会誌, 廃棄物資源循環学会誌, 29, 2, 125, 132,   2018年02月
  • In situ observation of desorption reaction of cytochrome c from solid/liquid interfaces with slab optical waveguide spectroscopy, Shinya Taguchi, Hirofumi Kawazumi, Toshihiko Nagamura, Hirotaka Okabe, Naoki Matsuda, Analytical Sciences, Analytical Sciences, 33, 461, 463,   2017年01月01日
    概要:© The Japan Society for Analytical Chemistry. An automated solution exchange (SE) mechanism has been introduced to slab optical waveguide spectroscopy to estimate the protein immobilizing ability of a slab optical waveguide (SOWG) surface. In each SE process, SOWG spectral change in absorbance at peak position of cytochrome c (cyt.c) Soret band at 409 nm was observed to analyze the desorption ratio of cyt.c adsorbed on SOWG surface. Continuous SE processes for 100 times have successfully brought us a kind of master desorption curve of cyt.c, which was well fitted by a double exponential equation, indicating the existence of three kinds of adsorbed states, including weakly adsorbed, strongly adsorbed, and immobilized cyt.c. The present results showed that around 30 times SE processes were enough to anticipate the ratio of desorbed and immobilized amounts of cyt.c adsorbed on SOWG surface.
  • High-performance recycling system for waste plastics using raman identification, Hirofumi Kawazumi, Akihiro Tsuchida, Tomoya Yoshida, Yasuo Tsuchida, Progress in Sustainable Energy Technologies Vol II: Creating Sustainable Development, Progress in Sustainable Energy Technologies Vol II: Creating Sustainable Development, 519, 529,   2014年01月01日
    概要:© Springer International Publishing Switzerland 2014. Raman spectroscopy has potential for application to waste plastic recycling when large-scale, accurate sorting processes are required. We developed a high-speed Raman identifier with a 3-ms measuring time. This identifier was successfully integrated with an on-line sorting system in a shredded plastic recycling plant. A practical-scale (200-600 kg/h) demonstration facility was constructed with 50 Raman apparatuses on a 30-cm-wide conveyor (speed: 100 m/min). This facility included preprocessing using specific gravity classification and putty removal. The Raman identification system was used to control air jets to sort polypropylene, polystyrene and acrylonitrile-butadiene-styrene copolymer with high accuracy from shredded plastics from post-consumer electrical appliances. Raman plastic identification can also provide solutions to problems at recycling sites such as the detection of brominated flame-retardants and the identification of black plastics.
  • ラマン識別による使用済みプラスチック選別回収システム, 土田哲大, 土田保雄, 河済博文, プラスチックエージ, プラスチックエージ, 12, 64, 68,   2012年12月
  • Identification and Degradation Estimation of Waste Plastics for Recycling Using Raman Spectroscopy, Tomoya Yoshida, Yasuo Tsuchida, Akihiro Tsuchida, Hirofumi Kawazumi, Bunseki Kagaku, Bunseki Kagaku, 61, 1027, 1032,   2012年01月01日
    概要:Large-scale mechanical recycling of waste plastics requires useful sorting techniques. We have developed a high-speed, accurate identifier based on Raman spectroscopy for recycling PP, PS and ABS from post-consumer electrical appliances. It consists of a high-power diode laser (785 nm), a large numeric aperture optical system and a high-speed signal-processing on-board circuit. Small pieces (less than 10-mm square) of the plastics could be identified with a 3-ms measuring time on a conveyor belt (speed, 100 m min -1 ). The 50 Raman identifiers successfully work in parallel in a practical-scale demonstration facility, and a purity of more than 95 % is achieved from shredded plastics at a throughput of 200 - 600 kg h -1 . Multivariable analysis using the Mahalanobis distance could reveal a correlation between distortions of the Raman spectra and the weight losses in thermogravimetry to estimate the degradation of the waste plastics. © 2012, The Japan Society for Analytical Chemistry. All rights reserved.
  • ポリマー研究開発におけるラマン分光分析, 河済 博文, ネットワークポリマー, ネットワークポリマー, 32, 2, 110, 115,   2011年, 査読有り
  • Identification of shredded plastics in milliseconds using raman spectroscopy for recycling, Akihiro Tsuchida, Hirofumi Kawazumi, Arikata Kazuyoshi, Tuchida Yasuo, Proceedings of IEEE Sensors, Proceedings of IEEE Sensors, 1473, 1476,   2009年12月01日
    概要:Raman Spectroscopy is able to identify plastic components, similar to infrared absorption. This paper shows the potential application of Raman spectroscopy to post-consumer plastic recycling when massive and accurate sorting processes are required. We developed a high-speed Raman apparatus for scanning with an appropriate wavelength region of less as 1.5 milliseconds, and an analyzing methodology that uses a discrimination function. We successfully implemented this technique in a shredded plastic recycling plant. The online sensing system successfully carried out more than three hundred cycle decisions per second. ©2009 IEEE.
  • Formation of gold nanorod-myoglobin aggregates by electrostatic interactions and their photochemical properties, Rumiko Kitagawa, Kanako Honda, Hirofumi Kawazumi, Yasuro Niidome, Naotoshi Nakashima, Sunao Yamada, Japanese Journal of Applied Physics, Japanese Journal of Applied Physics, 47, 1374, 1376,   2008年02月15日
    概要:A novel aggregate of gold nanorods (NRs) and myoglobin (Mb) was successfully fabricated by electrostatic interactions between the NR and Mb using positively charged biocompatible NRs. The aggregation induced some deformation of Mb, as was evaluated from circular dichroism measurements. Pulsed 1064nm laser irradiation to the aggregate has released some of the Mb proteins from the aggregate that resulted in the concomitant reshaping of the gold NRs in the aggregate. Some deformations of Mb were observed resulting from aggregation and subsequent laser irradiation. © 2008 The Japan Society of Applied Physics.
  • Control of laser-induced deposition of gold nanoparticles on glass substrates for localized surface plasmon sensing, Kanako Honda, Yasuro Niidome, Hirofumi Kawazumi, Sunao Yamada, Bunseki Kagaku, Bunseki Kagaku, 55, 675, 679,   2006年11月27日
    概要:The irradiation of a pulsed laser (532 nm 10 Hz, 10 mJ/pulse) on dodecanethiol-passivated gold nanoparticles in cyclohexane resulted in the deposition of gold nanoparticles onto a glass substrate. The mode values and the spreads of the size distribution of the laser-deposited gold nanoparticles could be controlled with the initial size of colloidal gold nanoparticles and the laser irradiation time. The initial gold nanoparticles of 2 nm and the 1-minute laser irradiation resulted in large deposited gold nanoparticles (mode value, 16 nm; distribution spread, 9.1 nm). The larger initial gold nanoparticles (20 nm) and the longer laser irradiation (5 minutes) provided the fragmentized deposition of gold nanoparticles (mode value, 10 nm; distribution spread, 7.7 nm) which showed a linear correlation between the peak shifts of localized surface plasmon bands and the refractive indexes of the surrounding solvents. © 2006 The Japan Society for Analytical Chemistry.
  • Mechanism of reaction efficiency enhancement in microchannels studieied by spectroscopic visualization and numerical simulation, Hirofumi Kawazumi, Kenichi Kanno, Masayuki Fujii, Yoshiko Yamaguchi, Hideaki Maeda, Hideaki Maeda, Micro Total Analysis Systems - Proceedings of MicroTAS 2006 Conference: 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, Micro Total Analysis Systems - Proceedings of MicroTAS 2006 Conference: 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, 1336, 1338,   2006年01月01日
    概要:The mechanism of high reaction efficiency of an organic condensation reaction and an enzyme hydrolysis in microreactors was studied by using the on-line visualization and numerical simulation for spatial distribution of the products. The characteristic fluidic behavior appeared to play an important role in the reaction efficiency enhancement. © 2006 Society for Chemistry and Micro-Nano Systems.
  • Development of SPR Immunosensing System Using MicroChannel Cell for Simultaneous Detection of Several Endocrine-Disrupting Chemicals, Norio Miura, K. Vengatajalabathy Gobi, Yukihiro Shoyama, Hideaki Maeda, Hirofumi Kawazumi, Hiroyuki Iwasaka, IEEJ Transactions on Sensors and Micromachines, IEEJ Transactions on Sensors and Micromachines, 123, 217, 223,   2003年01月01日
    概要:The endocrine-disrupting chemicals affect the functioning of hormones of animals and are called “environmental hormones”. They exist in various environments at very low concentrations in the range of ppt to ppb levels. Thus, highly sensitive determination of environmental hormones with high selectivity is indispensable in regulating the ecosystem, and the instrumentation that allows the on-site analysis of environmental hormones is paid much attention. In this research project, we are aiming at development of new optical immunosensing system for highly sensitive, selective, on-site and simultaneous detection of several environmental hormones at low cost. We report here the results of our research investigations on application of immunosensing technique to highly sensitive detection of environmental hormones, preparation of monoclonal antibodies, fabrication of the microchannel, miniaturization of the surface-plasmon-resonance detector, design of the compact total-sensing-system. © 2003, The Institute of Electrical Engineers of Japan. All rights reserved.
  • Observation of fluidic behavior in a polymethylmethacrylate-fabricated microchannel by a simple spectroscopic analysis, Hirofumi Kawazumi, Asuka Tashiro, Kazuya Ogino, Hideaki Maeda, Lab on a Chip, Lab on a Chip, 2, 8, 10,   2002年02月01日
    概要:An easy-to-use and low cost microreactor made of polymethylmethacrylate was mechanically fabricated with a microchannel (200 μm × 200 μm). The laminar flow behavior was investigated by visualizing the flow of red and green aqueous solutions. Digitized color images from a CCD camera were analyzed by resolving the color in RGB mode. Numeric data from red and green color components in the images could reveal the fluidic behavior in the microchannel because the spatial spectroscopic information corresponds to the color solution flows. Effects of corner shapes in a turn, flow rate and surface roughness were observed on the mixing of the laminar flows. A right angle turn and unevenness of ±10% of the inner wall surface almost mixed the two color laminar flows.
  • Water-content analysis by photothermal spectrometry with a near-infrared diode laser, Hirofumi Kawazumi, Takanobu Ukawa, Tomohiro Watanabe, Bunseki Kagaku, Bunseki Kagaku, 50, 911, 914,   2001年12月01日
    概要:Photothermal spectrometry for water is described in which high-power diode laser with a wavelength coincident with strong vibrational overtone absorption in a near-infrared region was used. In the thermal lens technique, an apparatus consisting of only solid-state devices, such as optical fibers, a fiber-coupler and photodiode, was used. The optical fibers acted as not only optical paths, but also as collimation devices. A water content of 0.15% in acetonitrile could be detected, and a linear analytical curve was obtained in the range of 0%∼ 7% with a 1478 nm, 100 mW diode laser at an intensity modulation frequency of 20 Hz. A photoacoustic technique could be also applied to water in acetonitrile and water adsorbed on molecular sieves by using a cell equipped with a cylindrical piezoelectric ceramic. These techniques can be a versatile water-analysis tool for the process monitoring and control. © 2001 The Japan Society for Analytical Chemistry.
  • Acid-base equilibrium constants at the water surface and distribution coefficients between the surface and the bulk as studied by the laser two-photon ionization technique, Miki Sato, Takeshi Kaieda, Kohshin Ohmukai, Hirofumi Kawazumi, Akira Harata, Teiichiro Ogawa, Journal of Physical Chemistry B, Journal of Physical Chemistry B, 104, 9873, 9877,   2000年10月26日
    概要:A new method has been proposed to determine the equilibrium between the bulk and the surface by directly measuring surface concentrations using laser two-photon ionization. This method has been applied to pyrenebutyric acid. The surface concentrations depended on the pH of the solution and were analyzed on the basis of two equilibrium constants and two distribution coefficients. Most pyrenebutyric acid stays on the surface at pH = 2.2. The equilibrium constant, pK a , of pyrenebutyric acid on the water surface was determined to be 7.85 ± 0.1 3 , and this value is shifted to higher value than that in the bulk (4.76). The distribution coefficient of the neutral pyrenebutyric acid was determined as (5.9 ± 2.8) × 10 -2 m, and that of pyrenebutyric anion as (4.82 ± 0.1) × 10 -5 m. The ratio of the distribution coefficient of the neutral pyrenebutyric acid to that of pyrenebutyric anion was determined to be (1.2 ± 0.6) × 10 3 . These findings indicate that the equilibrium shifts toward the neutral form on the water surface. Laser two-photon ionization was found to be a sensitive and powerful technique to analyze equilibrium on the surface and that between the surface and the bulk. © 2000 American Chemical Society.
  • Single Molecule Detection by Laser Two-Photon Excited Fluorescence in a Capillary Flowing Cell, Joon Myong Song, Joon Myong Song, Takanori Inoue, Takanori Inoue, Hirofumi Kawazumi, Teiichiro Ogawa, Teiichiro Ogawa, Analytical Sciences, Analytical Sciences, 14, 913, 916,   1998年12月01日
    概要:The two-photon excited fluorescence of fluorescein and Rhodamine B in a flowing sample cell was observed using a self mode-locked Ti-sapphire laser (180 fs pulse). The detection limit of fluorescein was less than 2 molecules in the probe volume. The single molecule detection of Rhodamine was successfully performed in a flowing cell, and the number of photon bursts agreed approximately with that expected.
  • Surface Density of Pyrenesulfonic Acid at the Air-Water Interface as Determined by Laser Two-Photon Ionization: Effect of pH and Salt, Miki Sato, Teiichiro Ogawa, Takeshi Kaieda, Kohshin Ohmukai, Hirofumi Kawazumi, Analytical Sciences, Analytical Sciences, 14, 855, 856,   1998年01月01日
  • Laser Fluorometry Using a Visible Semiconductor Laser and an Avalanche Photodiode for Capillary Electrophoresis, Joon Myong Song, Takanori Inoue, Teiichiro Ogawa, Hirofumi Kawazumi, Analytical Sciences, Analytical Sciences, 11, 587, 590,   1995年01月01日
    概要:A laser-induced fluorescence detection system for capillary electrophoresis using a visible semiconductor laser and an avalanche photodiode has been developed. These solid-state devices offer both reliability and compactness for instrumental design. A time-resolved photon-counting method with a subnanosecond resolution has reduced the large dark counts of the avalanche photodiode and the contribution from scattered light. The baseline fluctuation of the electropherogram is due to the shot noise of the avalanche photodiode. The detection limit (S/N=2) for a model dye compound, Oxazine 725, is 2.1 fmol as an injection amount. This value is comparable to that of the conventional laser fluorometry system with a gas laser and a photomultiplier. © 1995, The Japan Society for Analytical Chemistry. All rights reserved.
  • Time-delayed two-color two-photon ionization of anthracene, benzo [a] pyrene and pyrene in cyclohexane, Keiji Nakashima, Manabu Kise, Teiichiro Ogawa, Hirofumi Kawazumi, Sunao Yamada, Chemical Physics Letters, Chemical Physics Letters, 231, 81, 85,   1994年12月16日
    概要:Intermediate states of the two-photon ionization of the three aromatic molecules in cyclohexane were investigated using a time-delayed two-color technique. The S 1 state is a major intermediate for the two-photon ionization of anthracene and benzo [a] pyrene, while both the S 1 and S 2 states are intermediates for pyrene. Ionization through the short-lived S 2 state was enhanced through autoionization resonance. © 1994.
  • Two-photon ionization cross sections for the free ion production of naphthacene and fluoranthene in hexane, Hirofumi Kawazumi, Hirofumi Kawazumi, Yuji Isoda, Yuji Isoda, Teiichiro Ogawa, Journal of Physical Chemistry, Journal of Physical Chemistry, 98, 170, 173,   1994年12月01日
    概要:Naphthacene and fluoranthene in hexane showed photoconductivity signals upon excitation by 458-nm irradiation (200 mW) with a continuous-wave argon ion laser. The signals were quadratically proportional to the laser power and linearly proportional to the solute concentration, indicating a two-photon excitation-ionization. By evaluation of the signal intensity and laser beam parameters, two-photon ionization cross sections for the production of the free ions separating from geminate ion-electron pairs have been determined absolutely to be 2.2 × 10 -52 and 2.5 × 10 -54 cm 4 s/(molecule photon) for naphthacene and fluoranthene, respectively, at an electric field of 5000 V/cm. The former cross section of the ionization via a real state was about 100 times larger than the latter via a virtual state. The calculated quantum yield of naphthacene from the two-photon ionization cross section is smaller by about 6 orders of magnitude than the reported value of anthracene obtained by the pulsed laser excitation. © 1994 American Chemical Society.
  • Diode laser-based indirect absorbance detector for capillary electrophoresis, Stephen J. Williams, Edmund T. Bergström, David M. Goodall, Hirofumi Kawazumi, Kenneth P. Evans, Journal of Chromatography A, Journal of Chromatography A, 636, 39, 45,   1993年04月23日
    概要:A near-infrared detector has been developed for use in capillary electrophoresis (CE). The detector has a double beam arrangement with signal- to-reference ratioing and operates with a 670-nm diode laser as the light source. The laser beam can be modulated to allow a.c. signal recovery using lock-in amplification. Near-infrared laser dyes have been investigated as background absorbers, and the singly-charged cationic dye rhodamine 700 found to exhibit suitable characteristics for use in indirect absorbance detection in methanol-water mixtures. Separations of a series of tetraalkylammonium compounds have been performed on both a commercial CE apparatus with indirect UV detection and on a home-made instrument incorporating the diode laser detector. The limit of detection (2 × peak-to-peak noise) for the tetrabutylammonium ion with diode laser-based indirect absorbance is 2 · 10 -5 M. Both positive and negative peaks are found for these positively- charged analytes displacing a positively charged background absorber. Transfer ratios for all peaks are quantitated and the results compared with theoretical treatments of displacement in indirect detection. For analytes with mobility less than the indirect absorbing ion, measurement of peak area leads directly to the quantity of analyte present in the sample solution. © 1993.
  • Application of Laser Multi-Photon Ionization Detection to Thin-Layer Chromatographic Plates, Hirofumi Kawazumi, To Oru Yasuda, Teiichiro Ogawa, Analytical Sciences, Analytical Sciences, 9, 309, 310,   1993年01月01日
  • Two-photon ionization detection of adsorbed molecules on a metal surface at atmosphere pressure by 355-nm laser irradiation, H. Kawazumi, T. Yasuda, T. Ogawa, Analytica Chimica Acta, Analytica Chimica Acta, 283, 111, 114,   1993年01月01日
    概要:Two-photon ionization was applied to the sensitive detection of aromatic molecules and dyes on a metal surface in ambient air by using the third harmonic of an Nd:YAG laser. The better quality of the Nd:YAG laser beam compared with a nitrogen laser improved the sensitivity. The detection limits were of the order of 10 -3 monolayer coverage. The dependence of the ionization signal on the molar absorptivity and the metal substrate was measured.
  • Laser Two-Photon Ionization Detection of Aromatic Molecules on a Metal Surface in Ambient Air, Teiichiro Ogawa, To Oru Yasuda, Hirofumi Kawazumi, Analytical Chemistry, Analytical Chemistry, 64, 2615, 2617,   1992年01月01日
    概要:A laser two-photon process can ionize a photoabsorbing molecule selectively though a one-photon resonant process without ionizing the bulk surface. By measuring the ionized species through photoconductivity, this technique has been found to be successful for highly sensitive detection of aromatic molecules on a metal surface in ambient air. The photocurrent was due to electron drift and oxygen anion drift in ambient air. The photocurrent signal of various aromatic molecules was approximately proportional to the absorbance at the laser wavelength. The detection limits were on the order of 10 -13 mol/cm 2 in favorable cases, which correspond to less than 1 % coverage of the surface. © 1992, American Chemical Society. All rights reserved.
  • Laser Two-Photon Ionization of 4, 4″′-Bis[(2-butyloctyl)oxy]-p-quaterphenyl on a Platinum Surface in Ambient Air: Highly Sensitive Detection of Surface Molecules, Teiichiro Ogawa, To Oru Yasuda, Hirofumi Kawazumi, Analytical Sciences, Analytical Sciences, 8, 81, 82,   1992年01月01日
  • Trace Determination of Benzene and Aromatic Molecules in Hexane by Laser Two-Photon Ionization, Teiichiro Ogawa, Manabu Kise, To Oru Yasuda, Hirofumi Kawazumi, Sunao Yamada, Analytical Chemistry, Analytical Chemistry, 64, 1217, 1220,   1992年01月01日
    概要:LaMr two-photon ionization of several aromatic molecules In hexane has been carried out with the fourth harmonics (266 nm) of a Nd-YAG laser as an excitation source. The photolonlzatlon current Is quadratlcally proportional to the laser pulse energy, Indicating two-photon Ionization. There Is a large blank signal due to the solvent (hexane) Ionization, and it has been canceled with a differential technique. The effect of laser pulse energy fluctuation has been corrected by an on-line normalization procedure. The photolonlzatlon current also depends on the molar absorptivity of the molecule, and the first step to Ionization should be excitation at 266 nm above the ground state. The detection limit ranges from 3.8 ppb for benzene to 61 ppt for pyrene. Analytical curves were linear for at least 3 orders of magnitude above the detection limits. © 1992, American Chemical Society. All rights reserved.
  • Molecular Orientation of an Organized 2-(N-Octadecylamino)-naphthalene-6-sulfonic Acid Multilayer Determined by the Second-Harmonic Generation Technique, Toshiaki Koga, Teiichiro Ogawa, Hirofumi Kawazumi, Toshihiko Nagamura, Analytical Sciences, Analytical Sciences, 8, 259, 260,   1992年01月01日
  • Electron-impact dissociation of water as studied by the angular difference doppler profiles of the excited hydrogen atom, Teiichiro Ogawa, Nobuaki Yonekura, Masuo Tsukada, Masuo Tsukada, Satoru Ihara, Satoru Ihara, To O. Yasuda, Hideaki Tomura, Hideaki Tomura, Keiji Nakashima, Hirofumi Kawazumi, Journal of Physical Chemistry, Journal of Physical Chemistry, 95, 2788, 2792,   1991年12月01日
    概要:Dissociative excitation of water was investigated by measuring the Doppler profiles of the Balmer α and β lines of the excited hydrogen atom produced in e-H 2 O collisions, using a Fabry-Perot interferometer. The profiles were obtained at 55°, 90°, and 125° with respect to the electron beam. The translational energy distributions (TED) and the angular difference Doppler profiles were calculated through analyses of the profiles; results of H*(n=3) and H*(n=4) agree qualitatively. There are four major dissociation processes for the formation of the excited hydrogen atom. The first component is slow (TED mainly at 0-2 eV), and its formation is isotropic; this component is produced through initial excitation to Rydberg states converging to the B 2 B 2 (1b 2 ) -1 state and predissociation. The second component is fast (TED mainly at 3-7 eV), and its formation is anisotropic and parallel with respect to the electron beam. Thus, the symmetry of the initially excited Rydberg states is concluded to be B 2 ; this component is produced through direct dissociation of the Rydberg states converging to the 2 B 1 state. The third component is fast (TED mainly at 2-6 eV), and the direction of its formation is slightly perpendicular. Thus, the symmetry of the initially excited Rydberg states is concluded to be A 1 ; this component is produced through direct dissociation of the Rydberg states converging to the 2 A 1 (2a 1 ) -1 state. © 1991 American Chemical Society.
  • Universal on-line detector for high-performance liquid chromatography via magneto-optical rotation, Hirofumi Kawazumi, Hideki Nishimura, Yukiaki Otsubo, Teiichiro Ogawa, Talanta, Talanta, 38, 965, 969,   1991年01月01日
    概要:Detecting changes in magneto-optical rotation is useful as a universal on-line detector for high-performance liquid chromatography. Such apparatus is similar to a polarimeter except for the external magnetic field on a flow cell. Two modulation modes suitable for the magneto-optical rotation detector are discussed. Use of a semiconductor laser provides better sensitivity than a He-Ne laser. The detection limit is 0.006% (w/w) for polyethylene glycol 20000 in a 20-μl injection. © 1991.
  • Electron energy-loss spectra of methanol and assignments of its triplet states, Toshifumi Yoshidome, Hirofumi Kawazumi, Teiichiro Ogawa, Journal of Electron Spectroscopy and Related Phenomena, Journal of Electron Spectroscopy and Related Phenomena, 53, 185, 192,   1990年01月01日
    概要:The electron energy-loss spectra of methanol were measured at electron energies of 50, 20 and 2 eV above the threshold and at scattering angles of 0°-90°. Five new bands were found and assigned on the basis of intensity dependence on the incident electron energy and the scattering angle. A broad band at 6.3 eV was assigned as the 2a″-3s( 3 A″) transition and a band at 7.5 eV was assigned as the 2a″-3pa′ ( 3 A″) transition. Weak bands at 8.2 and 9.0 eV were assigned as the 2a″-3pa″ ( 3 A′) and the 2a″-3d( 3 A) transitions, respectively. A sharp band at 9.35 eV seemed to be a pseudo symmetry-forbidden transition. © 1990.
  • Distributions over the 4s, 4p and 4d Sublevels and Their Emission Cross Sections of the Excited Hydrogen Atom Produced in e-CH4 and H2O Collisions, Keiji Nakashima, Teiichiro Ogawa, Masaharu Taniguchi, Masaharu Taniguchi, Hirofumi Kawazumi, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 59, 893, 897,   1990年01月01日
    概要:Dissociation of CH4 and H2O induced in collisions with electrons was investigated by measuring decay curves of the intensity of the Balmer emission of the excited hydrogen atom H*(n=4). The azimuthal quantum number (s,p,d) distributions of H*(n=4) were obtained by a time-resolved single-photon counting method. The distribution (%) for methane is H*(4s):H*(4p):H*(4d)=42±4:4± 11:51 ±11 at the electron energy of 25-300 eV, and that for water is H*(4s):H*(4p):H*(4d)=27±5:15±11:55±11 at 23-300 eV. The emission cross sections of each sublevel were obtained at 35, 50, 100 and 300 eV. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.
  • Universal Flow Detector Based on Magneto-Optical Rotation, Hirofumi Kawazumi, Hideki Nishimura, Teiichiro Ogawa, Analytical Sciences, Analytical Sciences, 6, 135, 136,   1990年01月01日
  • Dissociation of HD: Dependence of Isotope Effects on the Principal Quantum Number, Keiji Nakashima, Hirofumi Kawazumi, Teiichiro Ogawa, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 58, 3857, 3858,   1989年01月01日
  • Laser Photoionization Technique for Conventional, Semi-Microcolumn and Microcolumn High Performance Liquid Chromatography, Hirofumi Kawazumi, Takashi Matsumoto, Nariaki Sato, Sunao Yamada, Teiichiro Ogawa, Analytical Sciences, Analytical Sciences, 4, 191, 194,   1988年01月01日
    概要:Laser two-photon ionization detection for high performance liquid chromatography was investigated. A free-falling jet cell (20 nl) was used for a conventional system, and detection limit was 0.5 pg for pyrene. A droplet cell (80 nl) was used for a semi-micro and microcolumn systems; detection limits for pyrene were 8.4 and 1.6 pg, respectively. In both cases the detection limit was better than that for a UV absorption detector. The sensitivity and selectivity of this detector are shown with a three-dimensional chromatogram, in which retention times and excitation laser wavelengths are displayed. © 1988, The Japan Society for Analytical Chemistry. All rights reserved.
  • Laser photoionization detector for reversed-phase high performance liquid chromatography, Teiichiro Ogawa, Takashi Matsumoto, Hirofumi Kawazumi, Toshihiko Nagamura, Analytical Sciences, Analytical Sciences, 4, 473, 476,   1988年01月01日
    概要:The laser Iwo-photon ionization technique was applied to reversed-phase high performance liquid chromatography by using a free-falling jet detector (20 nl). Methanol, acetonitrile and a mixture of acetonitrile-water (90:10) were used in the mobile phase. The dependences of the detection limit on such experimental parameters as the electrode spacing and applied voltage were measured. The best detection limit was obtained at 0.5 mm spacing and at 60 V for acetonitrile. Although these solvents showed similar leakage currents, acetonitrile gave the best detection limit. The detection limit was 60 pg for pyrene, comparable with or better than that obtained by a UV absorption detector. © 1988, The Japan Society for Analytical Chemistry. All rights reserved.
  • Resonance enhanced two-photon ionization spectrometry of aromatic molecules in ambient pressure nitrogen gas, Sunao Yamada, Naoshi Adach, Hirofumi Kawazumi, Teiichiro Ogawa, BUNSEKI KAGAKU, BUNSEKI KAGAKU, 37, 216, 220,   1988年01月01日
    概要:Various aromatic molecules have been detected simply and conveniently by measuring the photocurrent signal induced by resonance enhanced two-photon ionization. Volatile benzene derivatives were measured in the ppb~sub range by mixing the vapor of the analyte from a diffusion tube with nitrogen gas. Calibration curves were straight in the ppb~sub ppm range. Detection limits (S/N= 3) of eight benzene, derivatives were as low as ppb levels; the lowest detection limit was 0.8 ppb for aniline. The molecules with large molar absorptivities in isooctane gave the lower detection limits. Less volatile aromatic molecules were measured by the thermal vaporization technique; the solid sample was heated at a constant heating rate and the photocurrent signal was measured as a function of the temperature. Calibration curves were straight, and the lowest detection limit was 90 pg for triphenyl-amine. Some selective detections of mixtutes were possible within 10 min. This method may be useful for rapid identification and quantitation of organic adsorbates without any pretreatment. © 1988, The Japan Society for Analytical Chemistry. All rights reserved.
  • Translational energy distribution and asymmetry parameter of the excited hydrogen atom produced in e-C2H2 collisions: Dissociation dynamics of acetylene, Teiichiro Ogawa, Hideaki Tomura, Hideaki Tomura, Keiji Nakashima, Hirofumi Kawazumi, The Journal of Chemical Physics, The Journal of Chemical Physics, 88, 4263, 4267,   1987年12月01日
    概要:Dissociative excitation of acetylene induced in e-C 2 H 2 collisions was investigated by measuring the Doppler profile and its angular dependence from H*(n=4) at a resolution of 0.0065 nm. The translational energy distribution and the angular difference Doppler profile were calculated. The Balmer line was unpolarized. There are three major dissociation processes for H*(n=4) from C 2 H 2 ; their threshold energies and translational energy distributions are (1) 20.8, 0-2 eV, (2) ∼30, 3-5 eV, and (3) 35-40, 6-8 eV, respectively. Component 1 showed a clear anisotropy: the asymmetry parameter b is 0.5±0.1 and the anisotropy of atomic emission J p is 0. Thus, component 1 should be produced by predissociation through Rydberg states converging to the (2σ u ) -1 state. The decrease of b from the theoretical maximum is due to arbitrary direction of the momentum transfer vector and a relatively long lifetime of the intermediate excited states. Components 2 and 3 are also anisotropic and b > 0. © 1988 American Institute of Physics.
  • Laser Two-Photon Ionization Spectrometry of Perylene and Naphthacene in Hexane, Sunao Yamada, Nariaki Sato, Hirofumi Kawazumi, Teiichiro Ogawa, Analytical Chemistry, Analytical Chemistry, 59, 2719, 2721,   1987年11月01日
    概要:The two-photon Ionization spectra of perylene and naphthacene in hexane have been measured with tunable dye lasers. They have shown structure, which can be correlated with the one-photon absorption spectra. The signal-to-nolse (S/N) ratio has been evaluated as functions of the excitation wavelength and the laser pulse energy, and the detection limit depended on the excitation wavelength, the laser pulse energy, and the molar absorptivity. The lowest detection limits (S/N = 3) of peryiene and naphthacene were 50 pg/mL at 383 nm and 20 pg/mL at 407 nm, respectively; these dye laser results were superior to those obtained by nitrogen-laser excitation. © 1987, American Chemical Society. All rights reserved.
  • Dissociation of water by controlled electron impact: rotational and translational energies of OH(X 2Πi) fragment, Hirofumi Kawazumi, Teiichiro Ogawa, Chemical Physics, Chemical Physics, 114, 1, 149, 155,   1987年05月
    概要:Formation of OH(X 2 Π i ) by controlled electron impact on H 2 O has been studied by laser-induced fluorescence technique and its rotational and translational energies have been determined from the peak intensity and the Doppler profile. The rotational distribution of OH was Boltzmann-type with a characteristic temperature T rot = 470 ± 50 K for the P 1 lines at 100 eV. The translational energy distribution of OH was composed of three components with most probable values of ≈ 0, 0.09 and 0.22 eV. These three components have been assigned to three major excitation-dissociation processes of H 2 O: dissociation through H 2 O(A 1 B 1 ), H 2 O + (B 2 B 2 ) and H 2 O + ( 2 B 1 ), and Rydberg states converging to the two ionized states. © 1987.
  • Absolute cross sections for the formation of CN(X, v = 0) produced by controlled electron impact on BrCN and CH3CN, Hirofumi Kawazumi, Teiichiro Ogawa, Chemical Physics Letters, Chemical Physics Letters, 140, 458, 461,   1987年01月01日
    概要:The absolute cross section for the electron-impact formation of a radical fragment is determined by measuring its laser-induced fluorescence in comparison with that of N 2 + (X, v = 0); cross sections for CN(X, v = 0) from BrCN and CH 3 CN are 5.5 × 10 -17 cm 2 and 8.5 × 10 -17 cm 2 , at 200 eV, respectively. The rotational temperatures of CN(X, v = 0) from both molecules are 10000 ± 4000 K, assuming a Boltzmann distribution. © 1987.
  • Fast conductivity signals produced by pulsed laser photoionization of pyrene in non-polar hydrocarbon solvents, Sunao Yamada, Sadanori Yoshida, Hirofumi Kawazumi, Toshihiko Nagamura, Teiichiro Ogawa, Journal of Electroanalytical Chemistry, Journal of Electroanalytical Chemistry, 122, 391, 394,   1985年12月13日
    概要:The time profile of the conductivity signal of pyrene in non-polar hydrocarbon solvents consists of a fast signal (first few milliseconds) and a slow signal (after milliseconds). The fast signal is correlated with the electron mobility and is assigned to the displacement current and the electron drift. © 1985.
  • Fluorescence quenching of pyrene and pyrenedecanoic acid by various kinds of N,N-dialkylanilines in dipalmitoylphosphatidylcholine liposomes, Koji Kano, Hirofumi Kawazumi, Teiichiro Ogawa, Junzo Sunamoto, Chemical Physics Letters, Chemical Physics Letters, 74, 511, 514,   1980年01月01日
    概要:Fluorescence quenching of pyrene and pyrenedecanoic acid by various kinds of anilines has been studied in dipalmitoylphosphatidylcholine liposomes in gel phases. N,N-dimethylaniline and p-isopropyl-N,N-dimethylaniline caused anisotropic diffusional quenching, while N,N-dicetylaniline, a less mobile quencher, predominantly caused static quenching. These data suggested the location sites of both pyrenes and anilines in the membranes. © 1980, All rights reserved.
  • Synthesis and growth mechanism of triangular Ag-rich AgAu alloy prisms in an aqueous solution in the presence of PVP, citrate and H2O 2, Masaharu Tsuji, Masaharu Tsuji, Masaharu Tsuji, Atsuhiko Yajima, Mika Hamasaki, Masashi Hattori, Masahito Mitarai, Hirofumi Kawazumi, CrystEngComm, CrystEngComm, 15, 38, 7688, 7695,   2013年
    概要:The effects of the addition of a small amount of HAuCl 4 · 4H 2 O in the preparation of triangular Ag prisms from an aqueous AgNO 3 -NaBH 4 -polyvinylpyrrolidone (PVP)-trisodium citrate (Na 3 CA)-H 2 O 2 solution were studied by monitoring time-dependent surface plasmon resonance (SPR) bands in the UV-vis region and by analyzing the data obtained from transmission electron microscopic (TEM) images and TEM-energy dispersed X-ray spectroscopy (EDS). The results show that Ag-rich AgAu alloy triangular prisms are formed by the addition of a small amount of AuCl 4 - ions. At first, small Au seeds were formed without latent time, along with spherical Ag-rich AgAu alloy particles. Then, a spherical-to-prism (STP) transformation of the AgAu alloy particles occurred. The plasmon band of the AgAu prism shifts slightly to red with the increasing concentration of HAuCl 4 ·4H 2 O. © 2013 The Royal Society of Chemistry.
  • Plasmon-enhanced photocurrent generation from self-assembled monolayers of phthalocyanine by using gold nanoparticle films, Kosuke Sugawa, Tsuyoshi Akiyama, Tsuyoshi Akiyama, Hirofumi Kawazumi, Sunao Yamada, Sunao Yamada, Sunao Yamada, Langmuir, Langmuir, 25, 6, 3887, 3893,   2009年03月
    概要:The effect of localized electric fields on the photocurrent responses of phthalocyanine that was self-assembled on a gold nanoparticle film was investigated by comparing the conventional and the total internal reflection (TIR) experimental systems. In the case of photocurrent measurements, self-assembled monolayers (SAMs) of a thiol derivative of palladium phthalocyanine (PdPc) were prepared on the surface of gold-nanoparticle film that was fixed on the surface of indiu m-tin-oxide (ITO) substrate via a polyion (PdPc/AuP/polyion/ITO) or on the ITO surface (PdPc/ITO). Photocurrent action spectra from the two samples were compared by using the conventional spectrometer, and were found that PdPc/AuP/polyion/ITO gave considerably larger photocurrent signals than PdPc/ITO under the identical concentration of PdPc. In the case of the TIR experiments for the PdPc/AuP/polyion/ITO and the PdPc/AuP/Glass systems, incident-angle profiles of photocurrent and emission signals were correlated with each other, and they were different from that of the PdPc/ITO system. Accordingly, it was demonstrated that the photocurrent signals were certainly enhanced by the localized electric fields of the gold-nanoparticle film. © 2009 American Chemical Society.
  • Magneto-optical rotation detector based on semiconductor laser for high-performance liquid chromatography, Hirofumi Kawazumi, Hideki Nishimura, Yukiaki Otsubo, Teiichiro Ogawa, Analytical Sciences, Analytical Sciences, 7, 1479, 1480,   1991年
    概要:A universal on-line detector based on a magneto-optical rotation (MOR) has been developed for high-performance liquid chromatography. A near-infrared semiconductor laser with a stable light intensity improves a chromatographic background. Detectability is in the μ-g range and linearity of an analytical curve is more than two orders of magnitude. © 1991, The Japan Society for Analytical Chemistry. All rights reserved.
  • Fast conductivity signals produced by pulsed laser photoionization of pyrene in non-polar hydrocarbon solvents, Sunao Yamada, Sadanori Yoshida, Hirofumi Kawazumi, Toshihiko Nagamura, Teiichiro Ogawa, Chemical Physics Letters, Chemical Physics Letters, 122, 4, 391, 394,   1985年12月
    概要:The time profile of the conductivity signal of pyrene in non-polar hydrocarbon solvents consists of a fast signal (first few milliseconds) and a slow signal (after some milliseconds). The fast signal is correlated with the electron mobility and is assigned to the displacement current and the electron drift. © 1985.
  • Translational energy distributions of the excited nitrogen atom produced by electron-impact dissociative excitation of nitrogen molecules, Teiichiro Ogawa, Shigeki Ishibashi, Shigeki Ishibashi, Junichi Kurawaki, Junichi Kurawaki, Hirofumi Kawazumi, The Journal of Chemical Physics, The Journal of Chemical Physics, 82, 4, 1920, 1923,   1985年
    概要:The Doppler line shapes of atomic nitrogen emission (4p 2 S 1/2 -3s 2 P 3/2 : 4935.12 Å) were measured precisely with a Fabry-Perot interferometer at a resolution of 0.015 Å. The translational energy distributions of N* were calculated and found to be similar with those of N + and N(HR). There are three major components of N*; their peaks of the translational energy distribution and threshold energies are (1) 0.1-1.3 and 23.0 eV, (2) 2.8-3.0 and 29 eV, and (3)∼5 and 38-44 eV, respectively. The first component is produced by dissociative excitation through Rydberg states converging to the C state of N 2 + . © 1985 American Institute of Physics.

書籍等出版物

  • Progress in Sustainable Energy Technologies Vol II, Creating Sustainable Development, 河済 博文, 分担執筆, Chapter 34, “High-Performance Recycling System for Waste Plastics Using Raman Identification”, Springer (SPi Global),   2014年
  • ネットワークポリマーの分析・物性評価の実際 基礎から最先端まで, 河済 博文, 分担執筆, ポリマー研究開発におけるラマン分光分析, 合成樹脂工業協会,   2014年
  • ベーシック分析化学, 河濟 博文, 高木 誠, 共著,   2006年08月
    概要:高木誠編集 第8章光と物質の相互作用,第9章分子分光分析,第15章その他の機器分析法
  • プラズモンナノ材料の設計と応用展開, 河濟 博文, 山田 淳, 共著,   2006年06月
    概要:山田淳編集 第20章 SPRセンサとナノ構造

講演・口頭発表等

  • 生物多様性CEPAへの取組, 菅野 憲一, 河濟 博文, 早田亜希, 福岡県環境教育学会(環境教育学会福岡支部),   2011年08月, 福岡県環境教育学会(環境教育学会福岡支部)
    概要:生物多様性に関する広報、教育、普及・啓発の取組
  • マイクロチップ電気泳動を用いるDNA複合体解離ダイナミックスの研究, 河濟 博文, 竹田伸史, 西, 2006年日本化学会西日本大会,   2006年, 2006年日本化学会西日本大会
  • 基板表面の金ナノロッド吸着薄膜の構造制御, 河濟 博文, 本夛加菜子, 新留康郎, 中嶋直敏, 山田 淳, 日本分析化学会第55年会,   2006年, 日本分析化学会第55年会
  • 廃プラスチックマテリアルリサイクルのための成分識別機の開発, 河濟 博文, 平成17年度K‐RIP成果発表会,   2005年, 平成17年度K‐RIP成果発表会
  • 金ナノロッド吸着薄膜の構造制御, 河濟 博文, 本夛加菜子, 新留康郎, 山田 淳, 日本分析化学会第54年回,   2005年, 日本分析化学会第54年回
  • Rapid synthesis of gold nanostructures by microwavepolyol method, 河濟 博文, K.matsumoto, M.Kubokawa, T.Tsuji M.Tsuji, PACIFICHEM 2005,   2005年, PACIFICHEM 2005
  • adsorption control of gold nanorods modified with aminohexanethiol on a glass surface, 河濟 博文, K.Honda, Y.Niidome, S.Yamada, PACIFICHEM 2005,   2005年, PACIFICHEM 2005
  • Analysis of fluidic behavior and reaction dynamics in microreactor by simple visualization procedures, 河濟 博文, S.Matsubara, N.Yokoyama, 32nd FACSS,   2005年, 32nd FACSS
  • レーザー固定化金ナノ粒子の局在化プラズモン共鳴吸収とセンシングへの応用, 河濟 博文, 本夛加菜子, 新留康郎, 山田 淳, 第65回分析化学討論会,   2004年, 第65回分析化学討論会
  • 光熱変換を利用したプラスチックの識別法の開発, 河濟 博文, 宮崎健義, 第65回分析化学討論会,   2004年, 第65回分析化学討論会
  • プラズモン共鳴を利用したセンサー開発, 河濟 博文, 第65回分析化学討論会,   2004年, 第65回分析化学討論会
  • マイクロ波加熱による金ナノプリズムの液相合成, 河濟 博文, 橋本昌幸, 辻剛志, 辻正治, 松本貴生, ナノ学会第2回大会,   2004年, ナノ学会第2回大会
  • 環境をはかる, 河濟 博文, 日田市教育委員会「ようこそ先輩」,   2004年, 日田市教育委員会「ようこそ先輩」
  • マイクロ空間での反応と分析技術, 河濟 博文, 広島工業技術センター第4回バイオセンサー研究会,   2004年, 広島工業技術センター第4回バイオセンサー研究会
  • CdSe 蛍光性ナノ粒子のマイクロリアクタによる製造とその光学特性, 河濟 博文, 前田英明, 田代飛鳥, 渡, 第16 回化学工学に関するシンポジウム九州 大田・忠南(福岡),   2003年12月, 第16 回化学工学に関するシンポジウム九州 大田・忠南(福岡)
    概要:CdSe 蛍光性ナノ粒子をマイクロリアクタにより効率良く製造する方法とその生成物の光学特性につき検討した。
  • マイクロリアクタ中の流体および反応挙動の可視化, 河濟 博文, 菅野 憲一, 村木晃子, 前田英明, 10th ASIAN CHEMICAL CONGRESS(ベトナム),   2003年10月, 10th ASIAN CHEMICAL CONGRESS(ベトナム)
    概要:マイクロメータのサイズのマイクロ流路中の酵素反応の高効率化につき、流体や反応を可視化、画像計測する方法を開発し、検討した。
  • 抗原抗体反応を用いる小型マイクロチャンネル表面プラズモン共鳴検出器の開発, 河濟 博文, 前田英明, 三浦則雄, カウベリ・ゴビ, Micro Total Analysis Systems 2003(アメリカ),   2003年10月, Micro Total Analysis Systems 2003(アメリカ)
    概要:複数のマイクロ流路を持った表面プラズモン共鳴センサを開発し、複合体抗原抗体競合反応を利用した環境ホルモン類の多成分同時分析法の研究開発につき報告した。
  • SRP 免疫センサとマイクロチャンネルセルを用いた環境ホルモン関連物質の2 成分同時検出システム, 河濟 博文, 前田英明, 三浦則雄, カウベリ・ゴビ, 正山征洋, 岩坂博之, 第37 回化学センサ研究発表会(札幌),   2003年09月, 第37 回化学センサ研究発表会(札幌)
    概要:複数のマイクロ流路を持った表面プラズモン共鳴センサを開発し、環境ホルモン類の多成分同時分析につき検討した。
  • 小型マイクロチャンネル表面プラズモン共鳴検出器の開発, 河濟 博文, 本夛加菜子, 安永祥一郎, 前田英明, 三浦則雄, 第40 回化学関連支部合同九州大会(北九州),   2003年07月, 第40 回化学関連支部合同九州大会(北九州)
    概要:複数のマイクロ流路を持った表面プラズモン共鳴センサを開発し、環境ホルモン類の多成分同時分析につき検討した。
  • マイクロリアクタ中の流体および反応挙動の可視化, 河濟 博文, 菅野 憲一, 藤井 政幸, 村木晃子, 第40 回化学関連支部合同九州大会(北九州),   2003年07月, 第40 回化学関連支部合同九州大会(北九州)
    概要:マイクロメータのサイズのマイクロ流路中の酵素反応の高効率化につき、流体や反応を可視化、画像計測する方法を開発し、検討した。
  • マルチチャンネルマイクロ流路を有する小型表面プラズモン共鳴センサ, 河濟 博文, 本夛加菜子, 三浦則雄, マイクロリアクター技術研究会@九州第5回研究講演会(福岡),   2003年05月, マイクロリアクター技術研究会@九州第5回研究講演会(福岡)
    概要:複数のマイクロ流路を持った表面プラズモン共鳴センサを開発し、環境ホルモン類の多成分同時分析につき検討した。
  • マイクロリアクター研究を支える分光測定, 河濟 博文, マイクロリアクター技術研究会@九州第5回研究講演会(福岡),   2003年05月, マイクロリアクター技術研究会@九州第5回研究講演会(福岡)
    概要:近年、新しい化学反応システムとして注目されているマイクロリアクターにおいて、その詳細研究のために分光測定がどのように利用されているか、またどのような新しい分光測定技術が開発されなければならないかを解説した。
  • マイクロチャンネルを利用したグリコシル化反応, 河濟 博文, 菅野 憲一, 藤井 政幸, 前田英明, 宮崎, 第7回化学とマイクロシステム研究会(札幌),   2003年04月, 第7回化学とマイクロシステム研究会(札幌)
    概要:マイクロメータのサイズのマイクロ流路中の酵素反応の高効率化につき検討した。
  • Effect of microchannel system on trypsin-catalyzed reaction, 河濟 博文, 高木史典, 前田英明, 中村浩之, 宮崎真左也, The 14th Japan-Korea Joint Seminar for Young Organic Chemists(飯塚),   2002年11月, The 14th Japan-Korea Joint Seminar for Young Organic Chemists(飯塚)
    概要:トリプシンによる酵素加水分解反応について、その反応効率へのマイクロ空間の影響につき研究した。
  • マルチマイクロ流路を有する表面プラズモン共鳴センサの開発, 河濟 博文, 安永祥一郎, 前田英明, 三浦則雄, 2002年日本化学会西日本大会(福岡),   2002年11月, 2002年日本化学会西日本大会(福岡)
    概要:マイクロ流路を用い、画像処理をすることによってマルチチャンネル検出可能な小型の表面プラズモン共鳴センサの開発を行った。
  • マイクロリアクターにおける反応の可視化, 河濟 博文, 菅野 憲一, 村木晃子, 前田英明, 第6回化学とマイクロ・ナノシステム研究会(福岡),   2002年08月, 第6回化学とマイクロ・ナノシステム研究会(福岡)
    概要:100から200マイクロメータのサイズのマイクロ流路に着色した液体を流し、その流体挙動を画像解析により解明した。さらにその可視化技術を用い酵素反応加速のメカニズムについて研究した。
  • マイクロ流路を用いたマルチチャンネル表面プラズモン共鳴センサの開発, 河濟 博文, 安永祥一郎, 前田英明, 第39回化学関連支部合同大会(福岡),   2002年07月, 第39回化学関連支部合同大会(福岡)
    概要:マイクロ流路を用い、画像処理をすることによってマルチチャンネル検出可能な小型の表面プラズモン共鳴センサの開発を行った。
  • マイクロチャンネル内における流体挙動, 河濟 博文, 前田英明, 中村浩之, 宮崎真左也, 渡孝則 田代飛鳥, 第39回化学関連支部合同大会(福岡),   2002年07月, 第39回化学関連支部合同大会(福岡)
    概要:100から200マイクロメータのサイズのマイクロ流路に着色した液体を流し、その流体挙動を画像解析により解明し、マイクロ空間における流体挙動について研究した。
  • マイクロリアクタにおける流体および反応挙動の可視化, 河濟 博文, 菅野 憲一, 田代飛鳥, 前田英明, 第 63 回分析化学討論会 (姫路),   2002年05月, 第 63 回分析化学討論会 (姫路)
    概要:100 から 200 マイクロメータのサイズのマイクロ流路に着色した液体を流し、 その流体挙動を画像解析により解明し、 さらにその可視化技術を用い酵素反応加速のメカニズムについて研究した。
  • 近赤外半導体レーザを用いた高感度簡易水分分析法の開発, 河濟 博文, 中小企業産学官技術交流会 (熊本、 飯塚),   2001年11月, 中小企業産学官技術交流会 (熊本、 飯塚)
    概要:1.4 マイクロメータで発振する半導体レーザを用い、 変調検出や長光路セルと組み合わせ、 1%以下の微量の水分を迅速簡便に光吸収法で測定する方法につき研究した。
  • マイクロキャピラリー電気泳動による錯体解離反応の追跡, 河濟 博文, 分析化学会第 50 年会 (熊本),   2001年11月, 分析化学会第 50 年会 (熊本)
    概要:著者らはキャピラリー電気泳動により錯体解離反応の速度論的研究ができることを示してきたが、 ここではより微小なミクロキャピラリーのシステムを用いることで、 時間分解能を向上させることにつき検討した。
  • レーザけい光顕微鏡による生体モデル系の計測, 河濟 博文, 原田明 籏野嘉彦, 分析化学会第 50 年会 (熊本),   2001年11月, 分析化学会第 50 年会 (熊本)
    概要:干渉分光計を有したレーザけい光顕微鏡により、 生体モデル試料としてのマイクロメータサイズのイオン交換樹脂に吸着させたローダミン分子のけい光挙動を高い空間、 スペクトル分解能で測定した。
  • パーソナルコンピュータを利用した簡易分析試験紙測定の定量化, 河濟 博文, 9th Beijing conference and exhibition on instrumental analysis (Beijing),   2001年10月, 9th Beijing conference and exhibition on instrumental analysis (Beijing)
    概要:一般に市販されているパソコンとスキャナーを用いて、 環境分析などに利用されている分析試験紙の色情報を解析した。 RGB 分解したデジタルデータを多変量解析することで定量化できることを示した。
  • マイクロチャンネル中での流体挙動解析, 河濟 博文, 前田英明, International Symposium on Microchemistry and Microsystems (神奈川),   2001年09月, International Symposium on Microchemistry and Microsystems (神奈川)
    概要:アクリルの基板上に機械工作により作成された 100 から 200 マイクロメータのサイズのマイクロ流路に着色した液体を流し、 その流体挙動を画像解析により解明した。
  • マイクロキャピラリー電気泳動を利用するキレート解離反応の研究方法の検討, 河濟 博文, The sixth Asian Conference on Analytical Science (東京),   2001年08月, The sixth Asian Conference on Analytical Science (東京)
    概要:著者らはキャピラリー電気泳動により錯体解離反応の速度論的研究ができることを示してきたが、 ここではより微小なミクロキャピラリーのシステムを用いることで、 時間分解能を向上させることにつき検討した。
  • 近赤外半導体レーザを用いる吸光度水分分析法の開発, 河濟 博文, The sixth Asian Conference on Analytical Science (東京),   2001年08月, The sixth Asian Conference on Analytical Science (東京)
    概要:1.4 マイクロメータで発振する半導体レーザを用い、 変調検出や長光路セルと組み合わせ、 1%以下の微量の水分を迅速簡便に光吸収法で測定する方法につき研究した。
  • レーザけい光顕微鏡による生体モデル系の計測, 河濟 博文, 原田明 籏野嘉彦, The sixth Asian Conference on Analytical Science (東京),   2001年08月, The sixth Asian Conference on Analytical Science (東京)
    概要:干渉分光計を有したレーザけい光顕微鏡により、 生体モデル試料としてのマイクロメータサイズのイオン交換樹脂に吸着させたローダミン分子のけい光挙動を高い空間、 スペクトル分解能で測定した。
  • レーザけい光顕微鏡によるイオン交換樹脂に吸着したけい光色素のスペクトル特性抽出, 河濟 博文, 原田明 籏野嘉彦, International congress on Analytical Science 2001 (東京),   2001年08月, International congress on Analytical Science 2001 (東京)
    概要:干渉分光計を有したレーザけい光顕微鏡により、 マイクロメータサイズのイオン交換樹脂に吸着させたローダミン分子のけい光挙動を測定し、 その吸着分布などを画像処理の手法により解析した。
  • 全反射界面サーマルレンズ法による液 液界面でのキレート生成反応の追跡, 河濟 博文, International congress on Analytical Science 2001 (東京),   2001年08月, International congress on Analytical Science 2001 (東京)
    概要:全反射界面サーマルレンズ法により、 液 液界面におけるキレート生成反応をリアルタイムで測定し、 バルク反応とは異なった界面特有の現象につき検討した。
  • 難水溶性けい光プローブ分子の pKa 決定 ピレン誘導体の場合, 河濟 博文, 第 38 回化学関連支部合同九州大会 (福岡),   2001年07月, 第 38 回化学関連支部合同九州大会 (福岡)
    概要:けい光プローブ分子として重要なピレン誘導体化合物の pKa を、 そのけい光挙動変化から決定した。
  • 吸光光度法とサーマルレンズ法により測定した界面吸着キレートの電子スペクトル, 河濟 博文, 第 38 回化学関連支部合同九州大会 (福岡),   2001年07月, 第 38 回化学関連支部合同九州大会 (福岡)
    概要:液 液界面に吸着した鉄 バソフェナンスロリン錯体の電子スペクトルを、 テフロンプレートを利用した光吸収法と我々の開発した界面サーマルレンズ法とで測定し、 その違いにつき検討した。
  • マイクロリアクター技術の応用, 藤井 政幸, 河濟 博文, 阪口 利文, 菅野 憲一, 第 3 回マイクロリアクター技術研究会@九州研究講演会 (福岡),   2001年07月, 第 3 回マイクロリアクター技術研究会@九州研究講演会 (福岡)
    概要:マイクロリアクターによる機能性分子の化学的および生化学的合成、 微生物を利用した環境モニタリング等の技術開発及びその展望について講演した。
  • 直方市・近畿大学環境まちづくり研究センターのホームページ立ち上げと環境教育への利用, 河濟 博文, 坂本 栄治, 吉田健太郎, 永富義隆, 福岡県環境教育学会第 4 回年会 (久留米),   2001年06月, 福岡県環境教育学会第 4 回年会 (久留米)
    概要:広報を目的とした 「直方市・近畿大学環境まちづくり研究センター」 のホームページを作成した。 内容には、 センター組織の概要以外に、 ゴミの分別方法を紹介するなど、 このホームページが、 小学校レベルの環境教育に使用できるよう考慮した。
  • 多光子イオン化法による水溶液表面のダイナミックスの研究, 河濟 博文, 平成 12 年度日本分光学会九州支部研究会 (福岡),   2001年01月, 平成 12 年度日本分光学会九州支部研究会 (福岡)
    概要:レーザ多光子イオン化法により水溶液表面をイオン化すると、 光イオン化電子の放出平均自由行程が短く、 表面の分子の挙動を反映した信号を与える。 これを時間分解測定し、 表面分子の拡散、 溶解などのダイナミックスを明らかにしたことにつきまとめて報告した。

特許

  • 細胞処理用基板, 河済 博文, 特許6118601
  • セルアレイソータ、その製造方法及び細胞ソート方法, 河済 博文, 特許5780511
  • 細胞自動分取装置及び細胞自動分取方法, 河済 博文ほか, 特許5765763
  • ラマン散乱信号取得装置、ラマン散乱識別装置、ラマン散乱信号取得方法およびラマン散乱識別方法, 河済 博文ほか, 特許4932053
  • ラマン散乱信号取得方法ならびにラマン散乱信号取得装置、および、プラスチックの識別方法ならびに識別, 河済 博文ほか, 特許4260205
  • プラスチックの識別方法および識別装置, 河済 博文ほか, 特許4203916
  • プラスチックの識別方法及び識別装置, 河済 博文ほか, 特許3854986

受賞

  •   2017年06月, プラスチックリサイクル化学研究会, FSRJ技術功績賞

競争的資金

  • 経済産業省戦略的基盤技術高度化支援事業, 「精密夾雑物除去及び高精度光学選別技術によるASRプラスチック高度回収システムの開発」(副総括研究代表者)
  • 科学研究費補助金基盤研究(C)(一般), ラマン散乱によるプラスチック劣化計測法の開発
  • 環境省低炭素型3R技術・システム実証事業, 「ASRプラスチックの材料リサイクル深化技術の実証」(分担)
  • 環境省低炭素型3R技術・システム実証事業, 「ASRから材料リサイクルを図る仕組みづくり」(分担)
  • 科学研究費補助金基盤研究(C)(2), 新規分子計測法の産業レベルでの廃プラスチック精密識別への展開
  • 経済産業省地域イノベーション創出研究開発事業, 「新規光計測によるプラスチック精密識別リサイクルシステムの構築」(分担)
  • 経済産業省産業技術研究開発委託費事業, 「プラスチック高度素材別分別技術開発」(分担)
  • 九州地域戦略産業イノベーション創出事業, 水平リサイクルのための次世代ラマン散乱プラスチック識別機の開発
  • 経済産業省地域新規産業創造技術開発費補助金, 「超高速識別による廃プラスチック資源化システム技術の開発」(分担)
  • 経済産業省地域新生コンソーシアム研究開発事業, 「医療・環境分析用マイクロフローチップの開発」(分担)
  • (財)福岡県産炭地域振興センター, 「プラスチック単一資源選別による再資源化システムの開発」(分担)
  • 飯塚市研究テーマ探索事業, 資源リサイクルのためのプラスチック識別器の開発
  • 経済産業省地域新生コンソーシアム研究開発事業, 「ナノサイズ蛍光粒子製造用マイクロ流体システムの開発」(分担)
  • NEDO地域新生コンソーシアム研究開発事業, 「光学式マイクロ免疫センサを用いた環境ホルモンの高感度同時検知システム の開発」(分担)
  • 科学研究費補助金基盤研究(C)(2), 全反射励起サーマルレンズ法による界面分子認識メカニズムの研究」
  • 福岡県直方市, 直方市環境基本計画基礎調査(自然環境調査)
  • 科学研究費補助金基盤研究(C)(2), 全反射サーマルレンズ法による液ー液界面での溶媒抽出反応の研究
  • 科学研究費補助金基盤研究(A)(1), 「フォトサーマルスペクトロスコピーへの工学的応用」(分担)