EP4598666A1 - Behälter, mischungsvorrichtung und verfahren zur verwendung einer mischungsvorrichtung - Google Patents
Behälter, mischungsvorrichtung und verfahren zur verwendung einer mischungsvorrichtungInfo
- Publication number
- EP4598666A1 EP4598666A1 EP22799932.3A EP22799932A EP4598666A1 EP 4598666 A1 EP4598666 A1 EP 4598666A1 EP 22799932 A EP22799932 A EP 22799932A EP 4598666 A1 EP4598666 A1 EP 4598666A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- mixing device
- pressing surface
- pressing
- magnetic particles
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/55—Mixers with shaking, oscillating, or vibrating mechanisms the materials to be mixed being contained in a flexible bag submitted to periodical deformation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/44—Mixing of ingredients for microbiology, enzymology, in vitro culture or genetic manipulation
Definitions
- the invention relates to a container for a mixing device, a mixing device, and a method for using a mixing device according to the preamble of the independent claims.
- Magnetic beads magnetic particles play a major role in the automation of laboratory methods.
- Magnetic bead-based clean-up and “magnetic bead-based normalization” are widely used methods for immobilization, purification and concentration adjustment of nucleic acids. Typical applications of these methods are sample preparation in the context of DNA sequencing or DNA detection (e.g. using PCR, polymerase chain reaction).
- the magnetic particles were developed in 1995 at the Whitehead Institute for the purification of PCR products.
- the magnetic particles are usually paramagnetic and can consist of polystyrene coated with iron, for example.
- Various molecules with carboxyl groups can then be attached to the iron. These carboxyl groups can reversibly bind the DNA molecules. This immobilizes the DNA molecules.
- Processes using magnetic particles usually include the following steps. First, the PCR products are bound to the magnetic particles. This usually involves mixing the liquid and the magnetic particles in it. The magnetic particles with the attached PCR products are then separated from impurities (this step is carried out, for example, by pipetting the solution from the solid/from the container). The magnetic particles with the attached PCR products are then washed. After washing, the PCR products are eluted from the magnetic particles and transferred to a new plate.
- One of the most important methods for the synthesis, normalisation and purification of biomolecules is the method using magnetic particles.
- the biomolecules are bound to the surface of the magnetic particles.
- the magnetic particles are then fixed using a magnet and the solution, which contains byproducts and impurities, can be easily separated. This means that the biomolecules can be cleaned and isolated quickly and easily.
- the advantage of the magnetic beads is that the beads can move freely in the test mixture, which is important for the binding steps. If you now want to remove the liquid from the container, e.g. in a washing step, you simply hold a magnet to the container and can then separate the liquid.
- the magnetic particles are small paramagnetic or ferromagnetic beads that are coated with various materials that provide the required properties. Nickel particles coated with a plastic are often used.
- the object is achieved by a container, by a mixing device and by a method for using a mixing device having the features of the independent claims.
- a mixing device which can accommodate a container with an interior for receiving a content or which comprises the container and comprises a first and a second pressing surface.
- the container of the mixing device according to the invention can be arranged between the first and the second pressing surface in such a way that the container can be deformed by the first and/or the second pressing surface, in particular by a relative movement to the first and/or the second pressing surface, so that the Contents in the interior are mixable (or movable and/or agitable).
- the deformation of the container is preferably carried out by the force exerted by the pressing surfaces.
- the deformation of the container changes the shape of the container or the interior in such a way that the content in the interior or that can be introduced into the interior is influenced.
- a pressure is generated on the content, in particular the fluid, by a wall of the container surrounding the interior, so that a mixing movement / flow is induced in the liquid, which leads to the mixing.
- the shape of the wall surrounding the interior The wall can therefore preferably be changed or deformed accordingly by the action of the pressing surfaces.
- the container can be designed in particular as a "consumable”, i.e. as a consumable material that is introduced into the mixing device and can be disposed of after a corresponding process or method has been carried out. A new container can then be introduced into the mixing device.
- a consumable i.e. as a consumable material that is introduced into the mixing device and can be disposed of after a corresponding process or method has been carried out. A new container can then be introduced into the mixing device.
- the container can be arranged between the first and the second pressing surface means in particular that the container can be arranged with at least one section between at least two pressing surfaces.
- the mixing device can comprise a plurality of pressing surfaces, wherein the container can be arranged between at least two of the plurality of pressing surfaces, but also between several or all of the pressing surfaces.
- Deformable or deforming means in particular that a shape (of at least a section) of the container can be changed.
- the container can be elastic in such a way that the shape of the container can be reversibly changed by a force exerted by the pressing surfaces.
- the container can be compressed by the force exerted by the pressing surfaces, whereby the shape of the container is not irreversibly changed.
- the container can be deformed after being arranged between the pressing surfaces, in which only one of the two pressing surfaces (eg the first) moves and the other pressing surface (eg the second) and the container remain stationary.
- the moving pressing surface can move in the direction of the container and/or in the direction of the other pressing surface. Alternatively or additionally, the moving pressing surface can move along (a wall) of the container or along a container axis of the container in order to bring about further mixing; and/or
- the container can be deformed after being arranged between the pressing surfaces by both (or all/several) pressing surfaces moving, with the container remaining stationary.
- the pressing surfaces can move in the direction of the container and/or in the direction of the other pressing surface. Alternatively or additionally, the pressing surfaces can move along (a wall) of the container or along a container axis of the container in order to bring about further mixing; and/or
- the above-mentioned points for relative movement can be used alone or in any combination (i.e. both the pressing surfaces and the container can move).
- the stationary pressing surface can be realized, for example, by a wall in the mixing device acting as a pressing surface.
- the container (as described above) can also be arranged so as to be relatively movable between the first and second pressing surfaces that the container can be deformed by the movement between the first and second pressing surfaces.
- a distance between the first and the second pressing surface is adjustable and/or changeable, so that the distance between the pressing surfaces is smaller than a first dimension of the container, that the container is deformable/is deformed (by this relative movement to/by at least one of the pressing surfaces). The force from the pressing surfaces can then act on the container. This is where the container is pressed together or crushed.
- the container according to the invention is particularly preferably chemically resistant, pH-resistant and temperature-resistant.
- the container can be designed to hold at least 10 ml of liquid/content, preferably 10 ml to 500 ml or 20 ml to 100 ml, in particular 20 ml to 50 ml of liquid/content.
- the container may comprise a plurality of walls surrounding separate interior spaces.
- the holding element can be designed as the plate, which plate comprises a plurality of openings or fastening elements.
- a shell/wall is attached to each of these openings/fastening elements so that separate cavities are formed.
- the plate can be supported in particular in the mixing device so that the individual cavities hang in the mixing device.
- the container could be designed as a type of deep-well plate.
- the liquid and a large number of magnetic particles/cells/molecules or other particles can be arranged in the interior of the container.
- the liquid and the large number of magnetic particles/cells/molecules or other particles can be mixed by deforming the container.
- a container pre-filled in this way can be provided and sold in particular as a "consumable".
- the mixability ensures in particular that a concentration of magnetic particles/cells/molecules or other particles is the same for each volume of liquid taken, which can then be used in processes for processing e.g. biomolecules.
- the mixing device/container can in particular be a mixing device/container for providing a liquid with magnetic particles/cells/molecules or other particles.
- the mixing device can further comprise a container movement device by means of which the container can be moved relative to the first and/or the second pressing surface or between the first and the second pressing surface.
- the container preferably comprises the holding element with which the container is/can be attached to the container movement device.
- the container movement device can comprise a drive such as an electric motor, in particular a servo motor, by means of which the container can be set in motion.
- the container may comprise an opening for supplying and/or discharging the contents.
- the mixing device can further comprise a magnet, wherein the magnet can be arranged on the container in such a way that magnetic particles that can be introduced into the interior of the container can be Containers can be fixed. This allows the liquid to be drained and new liquid to be added without removing the magnetic particles from the interior.
- the magnet can be a permanent magnet and/or an electromagnet.
- a liquid removal instrument such as a pipette can be used to drain (or add) the liquid, so that the liquid can be removed from the container after biomolecules have been immobilized on the surface of the magnetic particles. This can be done via the opening of the container.
- the instrument for removing the liquid can also be a valve or another suitable instrument.
- the opening may thus function as an outlet opening and/or an inlet opening.
- the opening may be configured so that it can be used as an outlet opening and/or an inlet opening or as a combined inlet/outlet opening by closing and opening.
- the opening may be a ball valve, a butterfly valve, a control valve, a diaphragm valve, a slide valve, a needle valve or a pinch valve or combinations thereof.
- the container according to the invention and the mixing device are preferably used to provide liquid with magnetic particles for other processes such as processes for processing biomolecules (in this case, an equal / reproducible concentration of magnetic particles can be provided for each volume of liquid withdrawn).
- the container according to the invention can be a reaction container and the mixing device a bioreactor in which biomolecules are processed with magnetic particles.
- the method can be a method for providing a liquid with magnetic particles/cells/molecules or other particles, in which magnetic particles/cells/molecules or other particles and the liquid (as contents) are introduced into the interior of the mixing device and the liquid and magnetic particles/cells/molecules or other particles are mixed in the interior.
- a predeterminable volume of liquid can be removed from the container, particularly preferably while the mixing is taking place.
- the method may be a method for processing biomolecules in a mixing device according to the invention, in which magnetic particles and a liquid with biomolecules (as contents) are introduced into the interior of the mixing device and the liquid and magnetic particles are mixed in the interior.
- the method may further comprise fixing the magnetic particles in the container by arranging a magnet on the container and/or removing the liquid containing magnetic particles from the interior using an instrument for removing the liquid.
- a liquid can be a solution or suspension, in particular a mixture of liquid and magnetic particles or a reaction mixture of biomolecules and/or reagents and/or impurities.
- Fig. 1 is a schematic representation of a first embodiment of a container according to the invention
- Fig. 2 is a schematic representation of a first embodiment of a mixing device according to the invention.
- Fig. 3 is a schematic representation of a second embodiment of a mixing device according to the invention
- Fig. 4 is a schematic representation of an embodiment of a mixing device according to the invention with two pressing elements
- Fig. 5 is a schematic representation of an embodiment of a mixing device according to the invention with a pressing surface and a pressing element;
- Fig. 6 is a schematic representation of a first embodiment of a mixing device according to the invention with an inclined pressing surface
- Fig. 7 is a schematic representation of a second embodiment of a mixing device according to the invention with an inclined pressing surface
- the container 10 comprises an interior space 11 which is suitable for receiving a content such as a fluid.
- the container 10 is deformable in such a way that a content in the interior space can be mixed by the deformation. Pressing elements 3, 4 with pressing surfaces 30, 40 are provided for the deformation.
- a wall 100 of the container 10 surrounding the interior 11 exerts pressure on the contents, so that the contents can be mixed.
- the mixing device 1 comprises the container 10 with the holding element 12 and the first 30 and second 40 pressing surface.
- the container 10 is arranged between the first 30 and the second 40 pressing surface in such a way that the container 10 can be deformed by a relative movement to the first 30 and/or the second 40 pressing surface, so that the contents are mixed.
- a liquid 21 and a plurality of magnetic particles 22 are arranged as contents in the interior space 11, wherein the liquid 21 and the plurality of magnetic particles 22 can be mixed by the deformation of the container 10.
- FIG. 3 is a schematic representation of a second embodiment of a mixing device 1 according to the invention.
- the mixing device according to Fig. 3 essentially corresponds to the embodiment according to Fig. 2. However, instead of the wall, a pressing element 3 rotatable about an axis 31 is used.
- Both pressing surfaces 30, 40 can be moved in the direction of the container 10 and rolled along the wall 100 of the container 10.
- the structure according to Fig. 4 corresponds to the design according to Fig. 3.
- the two pressing elements 3, 4 are designed as rotatable rollers 3, 4.
- the pressing surfaces 30, 40 correspond to the outer surfaces 30, 40 of the rollers 3, 4.
- the mixing device 1 comprises an opening 6 through which the container (not shown here) can be introduced from above into the mixing device 1 and between the rollers 3, 4.
- mixing is carried out by deforming the container by moving the rollers 3, 4 towards each other and in opposite directions (i.e. one roller upwards and one roller downwards) until the rollers 3, 4 have moved past each other. The direction of movement can then be reversed.
- Fig. 5 shows a schematic representation of an embodiment of a mixing device 1 according to the invention with a pressing surface 30 and a pressing element 4.
- Fig. 5 corresponds to the design according to Fig. 2.
- one pressing element 4 is designed as a rotatable roller 4 with a movement device 5.
- the other pressing element 3 is a wall 3 of the mixing device 1.
- Fig. 6 shows a schematic representation of a first embodiment of a mixing device 1 according to the invention with an inclined pressing surface 30.
- the pressing surface 30 is a surface of the wall 3.
- An inclination of the wall 3 can be adjusted via a spacer element 7, so that after the introduction of the container (not shown here), the inclination of the wall 100 is reduced, i.e. the wall 3 is moved in the direction of the roller 4, so that a force can be exerted on the container by the wall 3 and the roller 4.
- the roller 4 can be moved up and down along the guide rods 51 in the mixing device 1.
- Fig. 7 shows a schematic representation of a second embodiment of a mixing device 1 according to the invention with an inclined pressing surface 30.
- the wall 3 is inclined in such a way that the distance between the roller 4 and the wall 3 is greatest in the area of the opening 6 for feeding the container.
- the roller 4 for introducing the container can thus be arranged on a side of the guide rods 52 facing the opening 6. If the roller 4 is then moved away from the opening 6, a force is exerted on the container due to the decreasing distance between the roller 4 and the wall 3, which results in a corresponding deformation.
- Fig. 8 shows a schematic representation of an embodiment of a mixing device according to the invention with an instrument for removing the liquid 8 and an optional magnet 7.
- the mixing device comprises the magnet 7, wherein the magnet 7 is arranged on the container 10 in such a way that magnetic particles 22 are fixed in the container 10. This allows the liquid 21 to be discharged by means of a pipette 8 via the opening 101 without magnetic particles 22. If no magnet 7 is used, liquid with a predeterminable concentration of magnetic particles 22 can be removed via the opening 101.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2022/077728 WO2024074205A1 (de) | 2022-10-05 | 2022-10-05 | Behälter, mischungsvorrichtung und verfahren zur verwendung einer mischungsvorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4598666A1 true EP4598666A1 (de) | 2025-08-13 |
Family
ID=84053172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22799932.3A Withdrawn EP4598666A1 (de) | 2022-10-05 | 2022-10-05 | Behälter, mischungsvorrichtung und verfahren zur verwendung einer mischungsvorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4598666A1 (de) |
| JP (1) | JP2025532126A (de) |
| CN (1) | CN119968230A (de) |
| WO (1) | WO2024074205A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4632262B2 (ja) * | 2003-02-05 | 2011-02-16 | アイキューム,インク. | サンプルの処理 |
| DE102019001210A1 (de) | 2019-02-19 | 2020-08-20 | aquila biolabs GmbH | Verfahren und Vorrichtung zur Durchführung von Reaktionsprozessen |
| US20200330938A1 (en) * | 2019-04-17 | 2020-10-22 | Vijay Singh | Mixing apparatus for very small volume formulations |
-
2022
- 2022-10-05 JP JP2025517337A patent/JP2025532126A/ja not_active Abandoned
- 2022-10-05 WO PCT/EP2022/077728 patent/WO2024074205A1/de not_active Ceased
- 2022-10-05 CN CN202280100446.4A patent/CN119968230A/zh active Pending
- 2022-10-05 EP EP22799932.3A patent/EP4598666A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024074205A1 (de) | 2024-04-11 |
| CN119968230A (zh) | 2025-05-09 |
| JP2025532126A (ja) | 2025-09-29 |
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