Title:
QUANTITATIVE EVALUATION METHOD AND DEVICE FOR ZETA POTENTIAL, pH OR TEMPERATURE DISTRIBUTION AT WALL SURFACE, AND QUANTITATIVE VISUALIZATION METHOD AND DEVICE FOR SURFACE MODIFICATION
Document Type and Number:
WIPO Patent Application WO/2010/041560
Kind Code:
A1
Abstract:
Multiple fluorescent dyes having different amounts of charge or charge characteristics and different fluorescent wavelengths are mixed into a solution, and the solution is allowed to flow over a surface to be measured. The fluorescent intensity distribution of multiple colors corresponding to the concentration distribution of the individual fluorescent dyes is produced by exciting the surface to be measured using an evanescent wave. The ratio of the fluorescent intensities of the multiple colors is calculated by measuring the fluorescent intensity at the surface to be measured using a two-dimensional imaging element that can be obtained by separating the intensities of the multiple fluorescent colors by color, and the ratio is converted into the two-dimensional distribution of zeta potential, pH or temperature at the wall surface using a relational expression, which has been formulated beforehand, between the ratio of the fluorescent intensities and the zeta potential, pH or temperature at the wall surface. Thus, surface modification or the two‑dimensional distribution of zeta potential, pH or temperature at the wall surface can be visualized in real time, and can also be evaluated quantitatively.
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Inventors:
SATO YOHEI (JP)
KAZOE YUTAKA (JP)
MIYAKAWA SHU (JP)
KAZOE YUTAKA (JP)
MIYAKAWA SHU (JP)
Application Number:
PCT/JP2009/066652
Publication Date:
April 15, 2010
Filing Date:
September 25, 2009
Export Citation:
Assignee:
UNIV KEIO (JP)
SATO YOHEI (JP)
KAZOE YUTAKA (JP)
MIYAKAWA SHU (JP)
SATO YOHEI (JP)
KAZOE YUTAKA (JP)
MIYAKAWA SHU (JP)
International Classes:
G01N21/64; G01K11/20
Foreign References:
| JP2002168870A | 2002-06-14 | |||
| JP2002125696A | 2002-05-08 | |||
| JP2004502173A | 2004-01-22 |
Other References:
YOHEI SATO ET AL.: "Micro/Nano-Scale Tahenryo Jikukan Bunpu Keisoku Hekimen Kyoku Kinbo no Nagare no Kozo to Ion Kyodo o Toraeru", JOURNAL OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS, vol. 111, no. 1071, 5 February 2008 (2008-02-05), pages 88 - 91
COPPETA J ET AL.: "Dual emission laser induced fluorescence for direct planar scalar behavior measurements", EXPERIMENTS IN FLUIDS, vol. 25, no. 1, June 1998 (1998-06-01), pages 1 - 15
MITSUHISA ICHIYANAGI ET AL.: "Micro Channel Hyomen Kaishitsu Patterning ni yoru Denki Shinto Ryudo eno Eikyo", DAI 44 KAI NATIONAL HEAT TRANSFER SYMPOSIUM OF JAPAN KOEN RONBUNSHU, - 22 May 2007 (2007-05-22), pages D231
MITSUHISA ICHIYANAGI, ET AL.,: "Hi Ichiyo Zeta Den'i o Yusuru Micro Channel-nai no Ryudo Tokusei", DAI 45 KAI NATIONAL HEAT TRANSFER SYMPOSIUM OF JAPAN KOEN RONBUNSHU, - 2 July 2008 (2008-07-02)
COPPETA J ET AL.: "Dual emission laser induced fluorescence for direct planar scalar behavior measurements", EXPERIMENTS IN FLUIDS, vol. 25, no. 1, June 1998 (1998-06-01), pages 1 - 15
MITSUHISA ICHIYANAGI ET AL.: "Micro Channel Hyomen Kaishitsu Patterning ni yoru Denki Shinto Ryudo eno Eikyo", DAI 44 KAI NATIONAL HEAT TRANSFER SYMPOSIUM OF JAPAN KOEN RONBUNSHU, - 22 May 2007 (2007-05-22), pages D231
MITSUHISA ICHIYANAGI, ET AL.,: "Hi Ichiyo Zeta Den'i o Yusuru Micro Channel-nai no Ryudo Tokusei", DAI 45 KAI NATIONAL HEAT TRANSFER SYMPOSIUM OF JAPAN KOEN RONBUNSHU, - 2 July 2008 (2008-07-02)
Attorney, Agent or Firm:
TAKAYA, Satoshi et al. (JP)
High arrow 諭 (JP)
High arrow 諭 (JP)
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