EP3541514A1 - Procédé et système de commande d'un dispositif microfluidique - Google Patents
Procédé et système de commande d'un dispositif microfluidiqueInfo
- Publication number
- EP3541514A1 EP3541514A1 EP17808103.0A EP17808103A EP3541514A1 EP 3541514 A1 EP3541514 A1 EP 3541514A1 EP 17808103 A EP17808103 A EP 17808103A EP 3541514 A1 EP3541514 A1 EP 3541514A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- capsules
- mixing
- microfluidic
- capsule
- fluid
- 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.)
- Granted
Links
Classifications
-
- 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
- B01L3/502738—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 integrated valves
-
- 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
- B01L2200/0621—Control of the sequence of chambers filled or emptied
-
- 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
- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0819—Microarrays; Biochips
-
- 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
- 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
- B01L2300/087—Multiple sequential chambers
-
- 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
- B01L2300/0887—Laminated structure
-
- 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
- B01L2300/12—Specific details about materials
- B01L2300/123—Flexible; Elastomeric
-
- 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
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0481—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure squeezing of channels or chambers
-
- 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
- B01L2400/06—Valves, specific forms thereof
- B01L2400/0633—Valves, specific forms thereof with moving parts
- B01L2400/0655—Valves, specific forms thereof with moving parts pinch valves
Definitions
- the present invention relates to a method of controlling a microfluidic device that includes a matrix of microfluidic capsules.
- the invention also relates to a control system of a microfluidic device.
- microfluidic devices that use a deformable membrane to control the flow of a fluid.
- Several microfluidic capsules are thus connected by channels so as to form a microfluidic matrix.
- Such a microfluidic capsule comprises a microfluidic chamber into which an inlet channel opens and an outlet channel emerges.
- the membrane deforms in said chamber to provide two states to the capsule, a first state in which the inlet channel and the outlet channel communicate with each other through the chamber so as to allow fluid transfer by filling the chamber.
- microfluidic capsules comprising so-called microfluidic mixing capsules, microfluidic insulation capsules and so-called mixing-insulation capsules,
- Microfluidic mixing capsules and microfluidic insulating capsules located in each series of filling are put in their first state so as to be each filled respectively by the first fluid and by the second fluid present in their associated reservoir, each capsule. the insulating capsules are placed in their second state so as to isolate, in each series of filling, the mixing capsules from each other,
- At least one first reservoir for receiving a first fluid and a second reservoir for receiving a second fluid to be mixed with the first fluid
- microfluidic capsules comprising so-called microfluidic mixing capsules, microfluidic insulation capsules and so-called mixing-insulation capsules,
- Each tank being separated from a mixing capsule by an insulating capsule by forming a series of capsules, called series of filling,
- the device comprises a first series of filling, associated with the first reservoir and comprising a plurality of separate volume mixing capsules and a second series of filling, associated with the second reservoir and comprising several mixing capsules of different volumes, the volumes of the mixing capsules of different volumes.
- the first filling series and the volumes of the mixing capsules of the second filling series being selected so as to form a dilution range of the first fluid in the second fluid, for each series of mixing.
- each microfluidic capsule of the device is made by superimposing a first substrate, a deformable membrane and a second substrate.
- the mixing-insulating capsules of the device have a lower maximum volume than the volume of the mixing capsules.
- the invention also relates to a control system of a microfluidic device defined above and arranged to implement the method defined above, said system comprising:
- a mixing module executed so that the first fluid present in a mixing capsule is mixed with the second fluid through each mixing-insulating capsule.
- the invention also relates to a complete microfluidic architecture comprising said microfluidic device defined above and said control system defined above.
- Figures 3A and 3B illustrate the operating principle of a microfluidic capsule as employed in the device according to the first embodiment.
- FIGS. 5A and 5B illustrate the operating principle of a microfluidic capsule as used in the device according to the second embodiment.
- FIG. 6A and 6B show an alternative embodiment of a microfluidic capsule used in a microfluidic device of the invention.
- FIG. 7 illustrates a principle of operation of the displacement of a fluid in a matrix of microfluidic capsules.
- each cavity has a cylinder shape of revolution. This cylinder shape has certain advantages. It is easier to machine and has a greater volume capacity, for a size similar to that of a half-spherical cap shape.
- the microfluidic device 1 is associated with an actuating mechanism 3 adapted to act on the membrane 12 at each microfluidic chamber 2 in order to switch the selected microfluidic chamber between its two states.
- the actuating mechanism 3 is for example of the pneumatic or mechanical type and will be described more precisely below.
- FIG. 5A illustrates a view of a microfluidic chamber 2 in a closed state where the corresponding portion of the deformable membrane 12 is put into a relaxed form.
- the portion of the membrane 12 corresponding to the chamber 2 is plated on the corresponding portion of the microfluidic surface 100 of the first substrate so that the volume between the membrane 12 and this surface 100 is almost zero, thus blocking the flow of the fluid through the chamber 2.
- the microfluidic device 1 is for example associated with an actuating system 3 adapted to control an action on the deformable membrane 12 at each microfluidic chamber 2 in order to switch the state of the microfluidic chamber 2 selected .
- Such an actuating system comprises a control and processing unit UC intended to implement a determined control sequence and an actuating mechanism 3 for executing said control sequence.
- the control sequence is created by the execution, by the control and processing unit UC, of a plurality of software modules, each software module corresponding to one or more of the steps of the control method of the invention.
- the actuating mechanism may be of pneumatic type. To switch the chamber, it's about applying the pressure sufficient to push or suck the membrane (according to the embodiment of the capsule) relative to the pressure of the fluid flowing.
- the two reservoirs are a first reservoir Ra intended to receive a sample and a second reservoir Rb intended to receive a reagent to be mixed with the sample;
- the general microfluidic structure is as follows:
- the lines of odd index include only insulating capsules
- the reservoirs are connected to capsules situated in columns of odd index, these columns being designated filling columns;
- the mixing-insulating capsules are placed on each mixing line so as to separate the mixing capsules from each other and to allow the mixing of the fluids.
- the reservoirs are located at the top or bottom of the capsule lines of the matrix. As described above, to avoid cross contaminations, they are spaced from the mixing lines by insulating capsules of index i.
- control method is implemented as described below. It includes an initialization phase in which the various components (sample + reagents) are brought to the mixing lines, without risk of contamination, and a mixing phase.
- the control and processing unit thus executes an initialisation software module which generates the various steps necessary for the implementation of this first phase. It will be considered that when a capsule is in state 0, it blocks the flow of fluid in its chamber and when it is in state 1, it allows a flow of fluid in its chamber.
- Step 2 - FIG. 10B All the capsules of index m and index i located in the alignment of a reservoir are controlled in state 1 by the control and processing unit, which makes it possible to bring the liquids present in each tank in all the capsules of the same filling column.
- the isolation capsules are all reset to 0 by the UC control and processing unit, which allows to isolate a volume of liquid in each of the index mixing capsules m present in the filling columns of the tanks.
- Step 5 - FIG. 10F This is a second mixture, controlled by the control and processing unit UC, between the sample, already mixed with the first reagent, and the second reagent initially present in the capsules. of mixture of index m of column 5 referenced. Similarly, in each mixing line, the capsules are actuated alternately to contact and mix by round trips. For example, for the mixing line 2, the order of actuation of these capsules is summarized in the table below:
- the matrix has the following characteristics: Insulation capsules are of a smaller maximum volume than the other capsules;
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1661227A FR3058995B1 (fr) | 2016-11-18 | 2016-11-18 | Procede et systeme de commande d'un dispositif microfluidique |
| PCT/FR2017/053096 WO2018091813A1 (fr) | 2016-11-18 | 2017-11-13 | Procédé et système de commande d'un dispositif microfluidique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3541514A1 true EP3541514A1 (fr) | 2019-09-25 |
| EP3541514B1 EP3541514B1 (fr) | 2021-01-20 |
Family
ID=57681661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17808103.0A Active EP3541514B1 (fr) | 2016-11-18 | 2017-11-13 | Procédé et système de commande d'un dispositif microfluidique |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3541514B1 (fr) |
| FR (1) | FR3058995B1 (fr) |
| WO (1) | WO2018091813A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3153265A1 (fr) | 2023-09-27 | 2025-03-28 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Procédé d'analyse d'un échantillon liquide dans un dispositif microfluidique |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3088430B1 (fr) | 2018-11-09 | 2023-12-08 | Commissariat Energie Atomique | Dispositif microfluidique de preparation d'echantillons offrant une grande repetabilite |
| FR3102558B1 (fr) * | 2019-10-29 | 2024-11-29 | Biomerieux Sa | Système de dilution dans un dispositif et procédé de fabrication du dispositif |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1125129A1 (fr) * | 1998-10-13 | 2001-08-22 | Biomicro Systems, Inc. | Composants de circuit fluidique bases sur la dynamique passive des fluides |
| US7832429B2 (en) | 2004-10-13 | 2010-11-16 | Rheonix, Inc. | Microfluidic pump and valve structures and fabrication methods |
| US7763453B2 (en) | 2005-11-30 | 2010-07-27 | Micronics, Inc. | Microfluidic mixing and analytic apparatus |
| US7976795B2 (en) | 2006-01-19 | 2011-07-12 | Rheonix, Inc. | Microfluidic systems |
| CA2786569C (fr) | 2010-01-29 | 2019-04-09 | Perkinelmer Health Sciences, Inc. | Cartouche microfluidique «de l'echantillon au resultat» |
| FR3035009B1 (fr) * | 2015-04-20 | 2020-02-07 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Dispositif microfluidique de controle d'ecoulement d'un fluide |
-
2016
- 2016-11-18 FR FR1661227A patent/FR3058995B1/fr not_active Expired - Fee Related
-
2017
- 2017-11-13 WO PCT/FR2017/053096 patent/WO2018091813A1/fr not_active Ceased
- 2017-11-13 EP EP17808103.0A patent/EP3541514B1/fr active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3153265A1 (fr) | 2023-09-27 | 2025-03-28 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Procédé d'analyse d'un échantillon liquide dans un dispositif microfluidique |
| EP4529982A1 (fr) | 2023-09-27 | 2025-04-02 | Commissariat à l'Energie Atomique et aux Energies Alternatives | Procédé d'analyse d'un échantillon liquide dans un dispositif microfluidique |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3058995A1 (fr) | 2018-05-25 |
| WO2018091813A1 (fr) | 2018-05-24 |
| EP3541514B1 (fr) | 2021-01-20 |
| FR3058995B1 (fr) | 2021-02-19 |
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