EP1270066A3 - Method for transporting liquid, and microreactor - Google Patents

Method for transporting liquid, and microreactor Download PDF

Info

Publication number
EP1270066A3
EP1270066A3 EP02014246A EP02014246A EP1270066A3 EP 1270066 A3 EP1270066 A3 EP 1270066A3 EP 02014246 A EP02014246 A EP 02014246A EP 02014246 A EP02014246 A EP 02014246A EP 1270066 A3 EP1270066 A3 EP 1270066A3
Authority
EP
European Patent Office
Prior art keywords
liquid
transported
magnetic fluid
transportation method
transportation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02014246A
Other languages
German (de)
French (fr)
Other versions
EP1270066A2 (en
Inventor
Takahiko Ishiguro
Juichi Saitoh
Yoshifumi Kurihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tosoh Corp
Original Assignee
Tosoh Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2001194729A external-priority patent/JP2003014772A/en
Priority claimed from JP2001237650A external-priority patent/JP2003050245A/en
Application filed by Tosoh Corp filed Critical Tosoh Corp
Publication of EP1270066A2 publication Critical patent/EP1270066A2/en
Publication of EP1270066A3 publication Critical patent/EP1270066A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
    • B01L3/50273—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by the means or forces applied to move the fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/006—Micropumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/06—Fluid handling related problems
    • B01L2200/0673—Handling of plugs of fluid surrounded by immiscible fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/08—Geometry, shape and general structure
    • B01L2300/0809—Geometry, shape and general structure rectangular shaped
    • B01L2300/0816—Cards, e.g. flat sample carriers usually with flow in two horizontal directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/08—Geometry, shape and general structure
    • B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
    • B01L2300/0867—Multiple inlets and one sample wells, e.g. mixing, dilution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/04—Moving fluids with specific forces or mechanical means
    • B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
    • B01L2400/043—Moving fluids with specific forces or mechanical means specific forces magnetic forces

Abstract

The present invention provides a simple liquid (3) transportation method without requiring high electric voltage or special external equipment, and a method for transporting liquid based on this transportation method. The liquid transportation method comprises a step of introducing a magnetic fluid (1) and a liquid (3) to be transported into a conduit (2) or a chamber connected thereto so that the magnetic fluid and the liquid to be transported are in contact with each other directly or indirectly via a medium, a step of moving the magnetic fluid by applying a magnetic field (4), and a step of moving above-mentioned liquid (3) to be transported by letting it follow the movement of the magnetic fluid (1).
The present invention also provides a simple transportation method of a specific amount of liquid without requiring high voltage or incorporation of specific actuator components such as valves. Using a conduit wherein at least three microchannels intersect one another and at least two of them have openings which can be opened or closed, opening and closing of the openings and liquid transportation are carried out in a controlled order, so that only a specific amount from a liquid introduced in an unspecific amount, is transported.
EP02014246A 2001-06-27 2002-06-26 Method for transporting liquid, and microreactor Withdrawn EP1270066A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2001194729A JP2003014772A (en) 2001-06-27 2001-06-27 Method for transporting liquid and microreactor
JP2001194729 2001-06-27
JP2001237650A JP2003050245A (en) 2001-08-06 2001-08-06 Method of transporting specific quantity of liquid
JP2001237650 2001-08-06

Publications (2)

Publication Number Publication Date
EP1270066A2 EP1270066A2 (en) 2003-01-02
EP1270066A3 true EP1270066A3 (en) 2004-06-30

Family

ID=26617651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02014246A Withdrawn EP1270066A3 (en) 2001-06-27 2002-06-26 Method for transporting liquid, and microreactor

Country Status (2)

Country Link
US (1) US20030026705A1 (en)
EP (1) EP1270066A3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004018350A1 (en) * 2002-08-23 2004-03-04 Yuichi Shibata Method and apparatus for controlling minute amount of fluid
KR20070037432A (en) * 2004-01-15 2007-04-04 도꾸리쯔교세이호징 가가꾸 기쥬쯔 신꼬 기꼬 Chemical analysis apparatus and method of chemical analysis
DE102004009985A1 (en) * 2004-03-01 2005-09-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Magnetic manipulation of biological samples
DE102007009219B4 (en) 2007-02-26 2008-10-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Manipulatory device and manipulation method for a biological sample
FR2934361B1 (en) 2008-07-22 2012-12-28 Commissariat Energie Atomique DEVICE FOR VARYING THE PRESSURE OF A PNEUMATIC FLUID BY DISPLACING LIQUID DROPS AND HEAT PUMP USING SUCH A DEVICE
DE102009001612B9 (en) * 2009-03-17 2012-03-08 Si Analytics Gmbh Method and apparatus for generating constant pulsation-free fluid streams for microfluidic applications
US10122836B2 (en) * 2016-09-28 2018-11-06 Intel Corporation Magnetic convection cooling for handheld device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09287571A (en) * 1996-04-18 1997-11-04 Fuji Electric Co Ltd Micropump
US6197595B1 (en) * 1995-06-29 2001-03-06 Affymetrix, Inc. Integrated nucleic acid diagnostic device
WO2001026813A2 (en) * 1999-10-08 2001-04-19 Micronics, Inc. Microfluidics without electrically of mechanically operated pumps
WO2001044667A1 (en) * 1999-12-15 2001-06-21 University Of Washington Magnetically actuated fluid handling devices for microfluidic applications

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6197595B1 (en) * 1995-06-29 2001-03-06 Affymetrix, Inc. Integrated nucleic acid diagnostic device
JPH09287571A (en) * 1996-04-18 1997-11-04 Fuji Electric Co Ltd Micropump
WO2001026813A2 (en) * 1999-10-08 2001-04-19 Micronics, Inc. Microfluidics without electrically of mechanically operated pumps
WO2001044667A1 (en) * 1999-12-15 2001-06-21 University Of Washington Magnetically actuated fluid handling devices for microfluidic applications

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HATCH A ET AL: "A FERROFLUIDIC MAGNETIC MICROPUMP", JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, IEEE INC. NEW YORK, US, vol. 10, no. 2, June 2001 (2001-06-01), pages 215 - 221, XP001123592, ISSN: 1057-7157 *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27) *

Also Published As

Publication number Publication date
US20030026705A1 (en) 2003-02-06
EP1270066A2 (en) 2003-01-02

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