WO2000062061A1 - Device and method for use in receptor-ligand and affinity tests - Google Patents
Device and method for use in receptor-ligand and affinity tests Download PDFInfo
- Publication number
- WO2000062061A1 WO2000062061A1 PCT/DE2000/001046 DE0001046W WO0062061A1 WO 2000062061 A1 WO2000062061 A1 WO 2000062061A1 DE 0001046 W DE0001046 W DE 0001046W WO 0062061 A1 WO0062061 A1 WO 0062061A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow cylinder
- sample
- hollow
- hollow piston
- space
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54366—Apparatus specially adapted for solid-phase testing
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
-
- 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
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0681—Filter
-
- 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
- B01L2300/0832—Geometry, shape and general structure cylindrical, tube shaped
-
- 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
- B01L2400/0478—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure pistons
-
- 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
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
- B01L3/0231—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type having several coaxial pistons
Definitions
- the invention relates to methods and an apparatus which can be used when performing receptor ligand and affinity tests, e.g. Fluorescence or enzyme immunoassays can be used, which may result in applications in medical diagnostics, environmental and food analysis.
- receptor ligand and affinity tests e.g. Fluorescence or enzyme immunoassays can be used, which may result in applications in medical diagnostics, environmental and food analysis.
- analyte-specific antibodies are immobilized on the wall of a test tube.
- the antibodies are immobilized on magnetic particles.
- complex washing and pipetting steps are required, which on the one hand are highly error-prone and generally do not have to be carried out directly at the actual examination site, but rather in laboratories with relatively great effort.
- this aspect is particularly important in environmental analysis important, since the substances to be analyzed in the collected samples should be examined very easily, in a short time, with little work and instrumental effort and little error.
- the device according to the invention which can be used for carrying out fluorescence or enzyme immunoassays, essentially consists of three individual parts.
- a hollow piston is received and guided in a hollow cylinder, an opening for the entry of a sample being provided in the hollow cylinder, so that the device according to the invention is essentially designed like a conventional syringe.
- a sealing plate which is sealed for a wide variety of fluids is arranged on the end face, which points into the interior of the hollow cylinder, the sealing plate being arranged and guided so as to be translationally movable within the hollow piston.
- the end face of the hollow piston which has already been mentioned, is porous as a separating layer, a conventional frit as known from column chromatography, but also a membrane, can be used for this.
- Particles can be present in a space which is formed within the hollow cylinder, between the inner wall of the hollow cylinder and the hollow piston. The particles are selected so that their grain size prevents them from penetrating the porous separation layer.
- porous separating layer which is used as the end face for a hollow piston or another porous separating layer, which is at the inlet opening for the
- Sample can be arranged in the hollow cylinder, can advantageously be selected so that they e.g. can retain cellular components of a whole blood sample and a blood plasma obtained in this way can be used as a sample without additional preparation steps.
- the opening formed in the hollow cylinder can be temporarily closed, for which purpose an appropriately designed plug, which can be pushed onto the opening if necessary and then closes, can be used.
- a check valve which is arranged in or at the opening.
- Sampling in preparation for the test actually to be carried out can be carried out in such a way that a relative movement between the hollow cylinder and the hollow piston is carried out with the opening of the hollow cylinder open and the sample taken through the opening into the space in which the particles can be contained becomes.
- the corresponding relative movement of the hollow piston and hollow cylinder can be fixed one of the two parts and corresponding movement of the other or by moving both parts can be achieved. It is particularly advantageous if there are appropriate end stops on the hollow piston and / or hollow cylinder or on a manipulation unit producing the relative movement, such as a corresponding automatic machine, so that in any case a defined sample volume is taken up in the device according to the invention.
- Antigens or antibodies are present, either the respective antigens or antibodies being labeled with a suitable fluorophore or enzyme.
- either antigen or antibody can be reversible on the inner wall of the hollow cylinder and the other partner can be immobilized on the surface of the particles. If the sample is now sucked into the device according to the invention, antigens or antibodies are detached from the inner wall by the sample and bind to one another.
- the unlabeled or marked biocomponents can also be bound to the porous separating layer which is arranged on the end face of the hollow piston, with a combination also binding to the inner wall of the hollow cylinder, the porous
- Separating layer and on the particles may be possible. Different partners can also be bound to the inner wall, the particles or the separating layer in order to carry out a test on at least two different analytes of a sample. Following this, an opposite relative movement of the hollow piston and the hollow cylinder is carried out with the opening of the hollow cylinder closed, at the same time a certain part of the sample volume reaching the interior of the hollow piston through the porous separating layer. The sample volume now located inside the hollow piston is covered by the sealing plate and a space containing a specific sample volume is formed between the porous separating layer and the sealing plate.
- the device according to the invention can be evaluated quantitatively with the correspondingly prepared sample.
- light with at least one fluorescence-exciting wavelength, corresponding to the fluorophore (s) used is directed onto the sample prepared in the space between the porous separating layer and sealing plate within the hollow bulb and the intensity of the fluorescent light is measured with a corresponding optical detector, whereby Known measurement methods can be used for this.
- light sources come e.g. monochromatic light emitting lasers are used.
- Mixed light can also be used using appropriate filters.
- filters can also be arranged in front of the optical detector in order to at least reduce the influence of stray light.
- the hollow cylinder and the hollow piston can in Entirely made of a transparent material for the light used. Alternatively, however, only corresponding windows for the irradiation of the prepared sample and the detection of the fluorescent light can also be formed.
- the most diverse known assay formats such as competitive, titration, displacement and sandwich assays for the most diverse receptor-ligand systems, such as e.g. Antibody-
- Antigen, lectin carbohydrate, DNA or RNA complementary nucleic acid, DNA or RNA protein, hormone receptor, enzyme-enzyme cofactors, protein G or protein A immunoglobin or avidin-biotin can be carried out.
- the respective analyte concentration can be determined directly proportional and inversely proportional in sandwich immunoassays.
- the invention also makes it possible to carry out competitive assays for high-molecular analytes.
- body fluids can be immediately, i.e. can be examined without additional preparatory steps and pre-treatment measures.
- the fluorophores are replaced by enzymes as marking substances.
- the corresponding enzyme-specific substrate and, if appropriate, suitable buffer substances for conditioning the sample are deposited in advance on the underside of the sealing plate received in the hollow piston. If, as already described when carrying out fluorescence immunoassays, the corresponding sample is sucked into the sample according to the invention and then subsequently partially introduced through the porous separating layer into the space between the porous separating layer and the sealing plate within the hollow bulb, a colorimetric evaluation can be carried out in a time-resolved manner . On the one hand, there is the possibility of measuring the intensity of a wavelength that is typical of the color change that is caused accordingly.
- various receptor ligand or affinity tests such as fluorescence immunoassays or enzyme immunoassays, can also be carried out in such a way that, through a relative movement of the hollow cylinder and hollow piston, a defined sample volume through the opening into the space which increases in accordance with the relative movement Hollow cylinder is sucked.
- at least one analyte contained in the sample can displace the one of a receptor-ligand system labeled with a fluorophore or enzyme.
- the fluorophore- or enzyme-labeled partner (s) can be bound to the particles and / or the porous separating layer, whereby in addition to covalent bonds, e.g. adsorptive or affinity bonds can also be considered.
- the sample prepared in this way is then closed again by closing the opening of the hollow cylinder and by the relative movement of the hollow cylinder and hollow piston through the porous separating layer into the correspondingly increasing space between the porous ones Separating layer and the sealing plate inside the hollow bulb and the corresponding evaluation by means of fluorescence or colorimetric measurement can then be carried out.
- the device according to the invention can furthermore be designed such that a hollow cylinder is used which has two chambers, in each of which a correspondingly designed hollow piston, which is preferably independent of one another relative to the chambers of the
- Hollow cylinders can be moved are introduced. As a result, at least one separate analyte can be determined in each chamber of such a hollow cylinder.
- markings with a plurality of fluorophores or enzymes can also be carried out, so that a multi-analyte determination is possible.
- markings with a plurality of fluorophores or enzymes can also be carried out, so that a multi-analyte determination is possible.
- Figure 1 shows the schematic structure of an example of a device according to the invention, before the actual sampling and sample preparation;
- FIG. 2 shows a part of the preliminary direction in an enlarged view
- Figures 3a and 3b is a schematic representation of the inclusion of a sample in the device according to Figures 1 and 2;
- 3c shows the transfer of part of the sample volume into a space formed in the interior of the hollow piston
- Figure 3d is a schematic representation of the actual measurement in a fluorescence immunoassay
- FIG. 4a and 4b an example of a device according to the invention supplemented with a rod-shaped element.
- FIG. 1 A possible example of a device according to the invention is shown schematically in FIG. It can be clearly seen how a hollow piston 2 is guided into the interior of a hollow cylinder 3, the play between the hollow piston outer wall and the hollow cylinder inner wall being kept relatively small, on the one hand to largely rule out tilting errors and on the other hand to achieve a certain degree of sealing.
- an opening 8 is formed on its outer end face, through which, as will be described below, the sample can reach the interior of the device.
- the hollow piston 2 is designed here in such a way that its end face pointing into the interior of the hollow cylinder 3 is designed as a porous separating layer 5.
- the porous separating layer 5 can consist of plastic, plastic mixtures, glass, ceramic or metal.
- a sealing plate 4 is arranged in the interior of the hollow piston 2, lying directly on the porous separating layer 5 before the sample is taken and the measurement is carried out.
- the sealing plate 4 consists of a material that is sealed for liquids and gases. It is dimensioned and designed so that it can be moved in translation inside the hollow piston 2 along its longitudinal axis.
- At least one pressure compensation opening 1 is provided on the hollow piston 2, which enables gas to enter or exit the hollow piston 2.
- particles 6 are present in the hollow cylinder 3 in the space between the end face of the hollow piston 2, the particle size of which is selected such that they cannot penetrate the porous separating layer 5.
- Polymers preferably crosslinked, are used as particle materials.
- the opening 8 can be closed for a safe inclusion of the particles 6 in the hollow cylinder 3 by means of a further porous separating layer as a frit, a filter or a membrane, through which the respective sample can easily get into the hollow cylinder 3.
- a further porous separating layer as a frit, a filter or a membrane
- sealing plate 4 is also provided with a circumferential seal 9, which prevents sample liquid from getting into the space above the sealing element 4 of the hollow piston 2.
- the thickness of the sealing plate 4 can be chosen accordingly, taking into account the free cross section inside the hollow piston 2.
- guide elements can also be formed on the upper side of the sealing plate 4, which preferably rest in a radially symmetrical arrangement on the inner wall of the hollow piston 2 for guiding the sealing plate 4 with a corresponding translatory movement.
- FIG. 2 also shows more clearly that 6 analyte-specific antibodies are bound to the different particles.
- the corresponding antigens 7 are reversibly bound to the inner wall of the hollow cylinder 3, as is indicated in FIG. 3a. It stands in this form the device according to the invention for recording and preparing a corresponding sample is available. Either the antibody or the antigen 7 is labeled with an appropriately suitable fluorophore for carrying out fluorescence immunoassays or with a corresponding enzyme for carrying out enzyme immunoassays.
- opening 8 of the device according to the invention is immersed in a container containing a corresponding sample and, by moving the hollow piston 2 as indicated by the arrow, the volume of the space 14 inside the hollow cylinder 3 can be moved in the vertical direction enlarged and the sample can be taken into this space, since the sealing plate 4 forms a liquid and gas-tight seal.
- the inner wall of the hollow cylinder 3 is released and the fluorophor-labeled antigens 7 can move freely within the liquid sample.
- a precisely defined sample volume can be sucked out of the container into the device according to the invention, that is to say into the space 14, by adhering to a certain predetermined path which the hollow piston 2 covers in the example shown here become.
- the opening 8 of the hollow cylinder 3 can be closed with a stopper 13 and after an analyte-specific predetermined time has elapsed, the sole movement of the hollow piston 2 or the starting position can be restored by a corresponding relative movement of the hollow piston 2 and the hollow cylinder 3, part of the sample volume passing through the porous separating layer 5 into the interior of the hollow piston 2, i.e. into a space 11 between the porous separating layer 5 and the sealing plate 4, and being kept locked there .
- the sample within the space 11 is irradiated from one side with a suitable light source and fluorescence is excited.
- the intensity of the fluorescent light can be measured with an optical detector 12 arranged diametrically to the light source and the respective analyte quantity can be deduced from the corresponding measurement signals.
- the entire device including the sample can be disposed of safely after the measurement has been carried out.
- an internal standardization can also be carried out.
- a first measurement of a fluorescence intensity is carried out when the sample has been sucked up via the opening 8 into the space 14 within the hollow cylinder 3, as shown in FIG. 3b.
- light with at least one wavelength is used with the fluorescence of the Detected fluorophores can be excited, directed and the fluorescence intensity detected with a suitable optical detector.
- the fluorescence intensity measured in this way can then subsequently be compared with and / or related to the fluorescence intensities which, as has been shown and described in FIG. 3d, have been recorded.
- the measurement accuracy can be increased in a simple manner and the measurement effort required can be increased only insignificantly.
- FIGS. 4a and 4b show an example of a device according to the invention modified with a rod-shaped element 15.
- the rod-shaped element 15 aligned parallel to the longitudinal axis of the hollow cylinder 2 is connected to the sealing plate 4, so that the sealing plate 4 can be forcibly moved in translation by means of the rod-shaped element 15.
- the rod-shaped element 15 should be led out of the hollow piston 2 in order to ensure that it can be handled.
- FIG. 4a shows the starting position of all elements before the actual sample acquisition.
- the sample then, with the opening 8 open, by means of a corresponding relative movement of the hollow cylinder 3 and the hollow piston 2 into the space 14, in which particles with a partner of a receptor-ligand system bound to them and reversibly on the wall of the Hollow cylinder 3 bound enzyme-labeled other partners of the receptor-ligand system are located.
- the analyte in the sample now binds to the two mentioned Partner and forms a so-called "sandwich".
- the sample After a corresponding incubation period, the sample, together with the excess unbound components, is pressed out of the space 14 through the opening 8 by means of pressure on the rod-shaped element 15 by the opposite relative movement of the hollow cylinder 3 and the hollow piston 2, the sealing plate 4 always being in contact with the porous one Separating layer 5 remains and therefore no liquid can pass through the latter.
- substrate solution By appropriate relative movement of the hollow cylinder 3 and hollow piston 2 substrate solution is now taken up through opening 8 in room 14.
- the enzyme bound to one of the partners of the receptor-ligand system sets the colorless substrate (eg tetramethylbenzidine / H 2 0 2 in the case of peroxidase or p-aminophenyl phosphate in the
- a rinsing step can be switched on between the steps described above.
- the procedure can also be such that the enzyme-labeled antibody (partner of a receptor li gand-Systems) is not already reversibly bound to the wall of the hollow cylinder, but is taken up separately into the device after the incubation of the sample with the partner bound to the particles and pressing out of the sample.
- the receptor-ligand system has a sandwich structure, antibody-analyte-antibody with additional enzyme, and can be bound to particles.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00929278A EP1166114A1 (en) | 1999-04-12 | 2000-04-03 | Device and method for use in receptor-ligand and affinity tests |
JP2000611073A JP2002541478A (en) | 1999-04-12 | 2000-04-03 | Apparatus and method for use in receptor-ligand and affinity tests |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19916430A DE19916430C1 (en) | 1999-04-12 | 1999-04-12 | Apparatus for use in performing receptor ligand and affinity tests |
DE19916430.4 | 1999-04-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000062061A1 true WO2000062061A1 (en) | 2000-10-19 |
WO2000062061A8 WO2000062061A8 (en) | 2000-12-07 |
Family
ID=7904262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/001046 WO2000062061A1 (en) | 1999-04-12 | 2000-04-03 | Device and method for use in receptor-ligand and affinity tests |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1166114A1 (en) |
JP (1) | JP2002541478A (en) |
DE (1) | DE19916430C1 (en) |
WO (1) | WO2000062061A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007054159A1 (en) * | 2005-11-09 | 2007-05-18 | Paul-Ehrlich-Institut Bundesamt Für Sera Und Impfstoffe | Apparatus for obtaining cell suspensions with subsequent admixture of additives and corresponding methods |
WO2007096640A1 (en) * | 2006-02-23 | 2007-08-30 | Mologic Ltd | A binding assay |
US7935497B2 (en) | 2006-02-23 | 2011-05-03 | Mologic Ltd | Protease detection |
US8361386B2 (en) | 2006-02-23 | 2013-01-29 | Mologic Ltd | Enzyme detection |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10202173C2 (en) * | 2002-01-17 | 2003-12-24 | Detlef Heller | Use of gas inlet and gas inlet apparatus for monitoring reactions in the liquid phase with the participation of gaseous reactants using nuclear magnetic resonance spectroscopy (NMR) under stationary conditions |
DE10221115B4 (en) * | 2002-05-07 | 2005-03-24 | ICB Institut für Chemo- und Biosensorik GmbH | Apparatus and method for the determination of chemical or biochemical partners of general receptor-ligand systems contained in samples |
US7694828B2 (en) * | 2005-04-27 | 2010-04-13 | Biomet Manufacturing Corp. | Method and apparatus for producing autologous clotting components |
WO2016117701A1 (en) * | 2015-01-22 | 2016-07-28 | Necソリューションイノベータ株式会社 | Target analysis apparatus and target analysis method |
EP3489683A4 (en) * | 2016-07-20 | 2020-03-18 | NEC Solution Innovators, Ltd. | Target analysis kit and target analysis method |
KR102081509B1 (en) * | 2018-08-24 | 2020-02-25 | 고려대학교 산학협력단 | Porous membrane-based particle separation apparatus using bi-directional trans-membrane flow control |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0378353A2 (en) * | 1989-01-10 | 1990-07-18 | La Mina Ltd. | Apparatus for collecting biological fluid |
DE4132480A1 (en) * | 1991-09-30 | 1993-04-08 | Kabe Labortechnik Gmbh | Blood sampling appts. for clinical or pathological use - has cylindrical test tube on which axially directed cone is formed with piston moving in tube provided with check valve contg. elastically deformable membrane |
EP0561003A1 (en) * | 1991-11-19 | 1993-09-22 | La Mina Ltd. | Device for detecting disease markers |
WO1998018518A1 (en) * | 1996-10-30 | 1998-05-07 | Cohesion Corporation | Cell separation device and in-line orifice mixer system |
US5846745A (en) * | 1990-07-20 | 1998-12-08 | Camas Diagnostic Company | Method and apparatus for the on-location field detection of unidentified antigenic substances |
DE19747572C1 (en) * | 1997-10-28 | 1999-04-08 | Inst Chemo Biosensorik | Apparatus for fluorescence immunoassay |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4057499A (en) * | 1973-03-09 | 1977-11-08 | Buono Frank S | Apparatus and method for separation of blood |
US3969250A (en) * | 1975-03-10 | 1976-07-13 | Farr Andrew F | Apparatus for preparing liquid samples for analysis in automatic analyzers |
ATE13909T1 (en) * | 1982-03-13 | 1985-07-15 | Boehringer Mannheim Gmbh | DEVICE FOR DETECTING BACTERIA, FUNGI AND VIRUSES IN BLOOD. |
DE3542331C2 (en) * | 1985-11-29 | 1995-07-06 | Sarstedt Kunststoff | Filter device for liquids |
US5077012A (en) * | 1989-01-10 | 1991-12-31 | La Mina Ltd. | Device for detecting disease markers |
DE9013914U1 (en) * | 1990-10-05 | 1991-02-14 | Walter Sarstedt Geraete Und Verbrauchsmaterial Fuer Medizin Und Wissenschaft, 5223 Nuembrecht, De |
-
1999
- 1999-04-12 DE DE19916430A patent/DE19916430C1/en not_active Expired - Lifetime
-
2000
- 2000-04-03 JP JP2000611073A patent/JP2002541478A/en active Pending
- 2000-04-03 WO PCT/DE2000/001046 patent/WO2000062061A1/en not_active Application Discontinuation
- 2000-04-03 EP EP00929278A patent/EP1166114A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0378353A2 (en) * | 1989-01-10 | 1990-07-18 | La Mina Ltd. | Apparatus for collecting biological fluid |
US5846745A (en) * | 1990-07-20 | 1998-12-08 | Camas Diagnostic Company | Method and apparatus for the on-location field detection of unidentified antigenic substances |
DE4132480A1 (en) * | 1991-09-30 | 1993-04-08 | Kabe Labortechnik Gmbh | Blood sampling appts. for clinical or pathological use - has cylindrical test tube on which axially directed cone is formed with piston moving in tube provided with check valve contg. elastically deformable membrane |
EP0561003A1 (en) * | 1991-11-19 | 1993-09-22 | La Mina Ltd. | Device for detecting disease markers |
WO1998018518A1 (en) * | 1996-10-30 | 1998-05-07 | Cohesion Corporation | Cell separation device and in-line orifice mixer system |
DE19747572C1 (en) * | 1997-10-28 | 1999-04-08 | Inst Chemo Biosensorik | Apparatus for fluorescence immunoassay |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007054159A1 (en) * | 2005-11-09 | 2007-05-18 | Paul-Ehrlich-Institut Bundesamt Für Sera Und Impfstoffe | Apparatus for obtaining cell suspensions with subsequent admixture of additives and corresponding methods |
WO2007096640A1 (en) * | 2006-02-23 | 2007-08-30 | Mologic Ltd | A binding assay |
US7935497B2 (en) | 2006-02-23 | 2011-05-03 | Mologic Ltd | Protease detection |
US8241588B2 (en) | 2006-02-23 | 2012-08-14 | Mologic Ltd | Binding assay |
US8361386B2 (en) | 2006-02-23 | 2013-01-29 | Mologic Ltd | Enzyme detection |
US8846328B2 (en) | 2006-02-23 | 2014-09-30 | Mologic Ltd | Method for detecting the presence of a protease enzyme in a sample |
Also Published As
Publication number | Publication date |
---|---|
EP1166114A1 (en) | 2002-01-02 |
DE19916430C1 (en) | 2001-01-18 |
WO2000062061A8 (en) | 2000-12-07 |
JP2002541478A (en) | 2002-12-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69918135T2 (en) | METHOD FOR CARRYING OUT TESTS | |
DE19628002C1 (en) | Device and method for carrying out fluorescence immunoassays | |
DE69333050T2 (en) | ARRANGEMENT FOR SAMPLING | |
EP1032840A1 (en) | Multi-manifold device for carrying out chemical, biological and/or biochemical analytical methods | |
EP1916524A1 (en) | Rotatable test element | |
DE19747572C1 (en) | Apparatus for fluorescence immunoassay | |
EP2194381B1 (en) | Testing element with combined control and calibration zone | |
DE10001116C2 (en) | Device and method for the optical or electrochemical quantitative determination of chemical or biochemical substances in liquid samples | |
WO2000062061A1 (en) | Device and method for use in receptor-ligand and affinity tests | |
DE112009004291B4 (en) | Automatic analyzer | |
EP3221444B1 (en) | Lateral flow assay ratio test | |
EP3116650B1 (en) | Method and device for the determination of biological analytes | |
EP2577311A1 (en) | Method and device for optical examination | |
DE102016112024A1 (en) | Quick test for pathogen and cell detection and procedures | |
DE10035911A1 (en) | Method and sensor for monitoring liquids | |
US8039268B2 (en) | Immunochromatoassay method and immunochromatoassay kit | |
WO2018145830A1 (en) | Device for targeted checking and displaying the absence or presence of analytes in a liquid sample | |
DE10221115B4 (en) | Apparatus and method for the determination of chemical or biochemical partners of general receptor-ligand systems contained in samples | |
EP1277505B1 (en) | Apparatus, method and flux-analysis system for capturing immunogenic particles | |
DE3618100C2 (en) | ||
EP1221340A1 (en) | Method and modular device for detection or quantitative analysis of molecules and structures | |
DE19828837A1 (en) | Small ring substrates with coatings immobilizing substances in enzymatic, immunological and molecular biological analyses | |
EP1983340A1 (en) | Method for determining the concentration of analytes | |
DE19856041A1 (en) | Method and device for carrying out quantitative fluorescence-labeled affinity tests | |
DE19839705A1 (en) | Assay for an analyte is based on peripheral capillary flow of sample into test device comprises indicator-impregnated porous support between liquid-impermeable films |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
AK | Designated states |
Kind code of ref document: C1 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: C1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
WR | Later publication of a revised version of an international search report | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2000 611073 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2000929278 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09958593 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2000929278 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000929278 Country of ref document: EP |