Title:
MICROANALYSIS CHIP
Document Type and Number:
WIPO Patent Application WO/2023/199694
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a microanalysis chip capable of stable analysis. Provided is a microanalysis chip with a channel area surrounded by channel walls located inside a porous substrate, characterized in that the channel area has a first channel chamber, a second channel chamber, and a channel connecting the first and second channel chambers, a reference electrode is disposed in the first channel chamber, an action electrode is disposed in the second channel chamber, and an electrolyte is located upstream of the reference electrode with respect to the direction of travel of a specimen in the channel area.
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Inventors:
YAMAMOTO TAKESHI (JP)
MIYAZAKI KEIJI (JP)
MIURA JUN (JP)
MAEDA HARUNOBU (JP)
ENOKIDO FUKA (JP)
TANAKA MASANORI (JP)
FUKATSU MAKOTO (JP)
MIYAZAKI KEIJI (JP)
MIURA JUN (JP)
MAEDA HARUNOBU (JP)
ENOKIDO FUKA (JP)
TANAKA MASANORI (JP)
FUKATSU MAKOTO (JP)
Application Number:
PCT/JP2023/010501
Publication Date:
October 19, 2023
Filing Date:
March 17, 2023
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
G01N27/416; G01N27/30; G01N35/08; G01N37/00
Foreign References:
| JPH09178690A | 1997-07-11 | |||
| JP2015514996A | 2015-05-21 | |||
| JP2010014422A | 2010-01-21 | |||
| US20160033438A1 | 2016-02-04 | |||
| US20120181184A1 | 2012-07-19 | |||
| JP2021037612A | 2021-03-11 |
Other References:
SHITANDA ISAO, KOMODA MASATO, HOSHI YOSHINAO, ITAGAKI MASAYUKI: "Screen-printed Paper-based Three-electrode System with Long-term Stable and Instantaneously Usable Reference Electrode", CHEMISTRY LETTERS, CHEMICAL SOCIETY OF JAPAN,NIPPON KAGAKUKAI, JP, vol. 47, no. 12, 5 December 2018 (2018-12-05), JP , pages 1502 - 1504, XP093099946, ISSN: 0366-7022, DOI: 10.1246/cl.180809
SODA YOSHIKI; BAKKER ERIC: "Ionic strength-independent potentiometric cation concentration sensing on paper using a tetrabutylammonium-based reference electrode", SENSORS AND ACTUATORS B: CHEMICAL, ELSEVIER BV, NL, vol. 346, 30 July 2021 (2021-07-30), NL , XP086759627, ISSN: 0925-4005, DOI: 10.1016/j.snb.2021.130527
DING RUIYU; FIEDORUK-POGREBNIAK MARTA; POKRZYWNICKA MARTA; KONCKI ROBERT; BOBACKA JOHAN; LISAK GRZEGORZ: "Solid reference electrode integrated with paper-based microfluidics for potentiometric ion sensing", SENSORS AND ACTUATORS B: CHEMICAL, ELSEVIER BV, NL, vol. 323, 3 August 2020 (2020-08-03), NL , XP086259250, ISSN: 0925-4005, DOI: 10.1016/j.snb.2020.128680
RUECHA NIPAPAN, CHAILAPAKUL ORAWON, SUZUKI KOJI, CITTERIO DANIEL: "Fully Inkjet-Printed Paper-Based Potentiometric Ion-Sensing Devices", ANALYTICAL CHEMISTRY, AMERICAN CHEMICAL SOCIETY, US, vol. 89, no. 19, 3 October 2017 (2017-10-03), US , pages 10608 - 10616, XP093053067, ISSN: 0003-2700, DOI: 10.1021/acs.analchem.7b03177
KRIKSTOLAITYTE VIDA; DING RUIYU; CHUA HUI XIA ESTHER; LISAK GRZEGORZ: "Paper as sampling substrates and all-integrating platforms in potentiometric ion determination", TRAC TRENDS IN ANALYTICAL CHEMISTRY, ELSEVIER, AMSTERDAM, NL, vol. 133, 17 October 2020 (2020-10-17), AMSTERDAM, NL , XP086396228, ISSN: 0165-9936, DOI: 10.1016/j.trac.2020.116070
SODA YOSHIKI; BAKKER ERIC: "Ionic strength-independent potentiometric cation concentration sensing on paper using a tetrabutylammonium-based reference electrode", SENSORS AND ACTUATORS B: CHEMICAL, ELSEVIER BV, NL, vol. 346, 30 July 2021 (2021-07-30), NL , XP086759627, ISSN: 0925-4005, DOI: 10.1016/j.snb.2021.130527
DING RUIYU; FIEDORUK-POGREBNIAK MARTA; POKRZYWNICKA MARTA; KONCKI ROBERT; BOBACKA JOHAN; LISAK GRZEGORZ: "Solid reference electrode integrated with paper-based microfluidics for potentiometric ion sensing", SENSORS AND ACTUATORS B: CHEMICAL, ELSEVIER BV, NL, vol. 323, 3 August 2020 (2020-08-03), NL , XP086259250, ISSN: 0925-4005, DOI: 10.1016/j.snb.2020.128680
RUECHA NIPAPAN, CHAILAPAKUL ORAWON, SUZUKI KOJI, CITTERIO DANIEL: "Fully Inkjet-Printed Paper-Based Potentiometric Ion-Sensing Devices", ANALYTICAL CHEMISTRY, AMERICAN CHEMICAL SOCIETY, US, vol. 89, no. 19, 3 October 2017 (2017-10-03), US , pages 10608 - 10616, XP093053067, ISSN: 0003-2700, DOI: 10.1021/acs.analchem.7b03177
KRIKSTOLAITYTE VIDA; DING RUIYU; CHUA HUI XIA ESTHER; LISAK GRZEGORZ: "Paper as sampling substrates and all-integrating platforms in potentiometric ion determination", TRAC TRENDS IN ANALYTICAL CHEMISTRY, ELSEVIER, AMSTERDAM, NL, vol. 133, 17 October 2020 (2020-10-17), AMSTERDAM, NL , XP086396228, ISSN: 0165-9936, DOI: 10.1016/j.trac.2020.116070
Attorney, Agent or Firm:
ABE Takuma et al. (JP)
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