WO2000042432A1 - Purification process using magnetic particles - Google Patents
Purification process using magnetic particles Download PDFInfo
- Publication number
- WO2000042432A1 WO2000042432A1 PCT/FI2000/000031 FI0000031W WO0042432A1 WO 2000042432 A1 WO2000042432 A1 WO 2000042432A1 FI 0000031 W FI0000031 W FI 0000031W WO 0042432 A1 WO0042432 A1 WO 0042432A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- particles
- medium
- probe
- magnetic
- surface tension
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/10—Processes for the isolation, preparation or purification of DNA or RNA
- C12N15/1003—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor
- C12N15/1006—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor by means of a solid support carrier, e.g. particles, polymers
- C12N15/1013—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor by means of a solid support carrier, e.g. particles, polymers by using magnetic beads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/005—Pretreatment specially adapted for magnetic separation
- B03C1/01—Pretreatment specially adapted for magnetic separation by addition of magnetic adjuvants
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/14—Extraction; Separation; Purification
- C07K1/16—Extraction; Separation; Purification by chromatography
- C07K1/22—Affinity chromatography or related techniques based upon selective absorption processes
Definitions
- the present invention relates to the purification of biological substances using magnetic particles which bind the material specifically from a mixture.
- the invention can be used for instance for purifying nucleic acids DNA or RNA.
- Magnetic particles can be coated with a separation reagent which reacts specifically with a desired biological substance.
- the particles and the bound substance are separated from the mixture and thereafter the substance is released from the particles for further prosecution.
- this is done in practice so that the particles are drawn with a magnet against the wall of the vessel containing the mixture, and the liquid is poured or sucked off the vessel. Thereafter a new liquid can be dispensed into the vessel.
- Manual or automatic equipments for such separation technology are also commercially available (e.g., Spherotec, Inc., AutoMag Processor (USA), Merck Magnetic Rack (Darmstadt, Germany), PerSeptive Biosystems 96 well plate separator, Multi-6 Separator, Solo-Sep Separator (USA), Dynal Magnetic Particles Concentrators).
- the old purification technique for DNA involves ultracentrifugation in a dense cesium chloride gradient.
- magnetic particle technology described above has been used for purifying nucleic acids.
- WO 94/18565 suggests a method and device for magnetic particle specific binding assay, in which magnetic particles are separated from a mixture by a probe comprising a rod movable in a vertical bore and provided with a magnet at the lower end thereof. The probe is pushed into the mixture with the rod in the lower position, whereby the particles are collected on the probe. Then the probe is transferred to another vessel and the rod is pulled in its upper position, whereby the particles are released.
- all steps of the assay can be carried out in a separate vessel without having to transfer liquids. In the last vessel, a measurement is carried out.
- WO 96/12959 suggests a magnetic particle transfer tool comprising an elongated body with a concavely tapered tip part.
- the body further comprises means for providing a longitudinal magnetic field to collect particles to the tip of the body.
- the magnetic field can be eliminated in order to release the particles.
- This tool can be used especially for collecting particles from a large volume and releasing them into a very small volume.
- material to be purified is dispensed in a first medium containing magnetic particles, which have been coated with a binding reagent for the material.
- the binding reaction takes place, after which the particles are separated by means of a magnetic probe and transferred into a second medium, in which a desired further reaction necessary for the purification may take place.
- the particles can be transferred similarly via further mediums for carrying out further steps of the purification process. All the vessels may contain the necessary reaction medium ready when the particles are transferred into it. Preferably the particles are also released from the probe in the second and subsequent mediums.
- At least one of the mediums contains a surface tension releasing agent. This promotes the complete collection of the particles.
- the invention can be used especially for purifying nucleic acids, such as ssDNA, dsDNA, and mRNA.
- Figure 1 shows the effect of a detergent in collecting and releasing steps of magnetizable particles.
- Figure 2 shows the effect of salt and saccharose in collecting and releasing buffer.
- Figure 3 shows the effect of protein in collecting and releasing buffer.
- Figure 4 shows the effect of a detergent when magnetic particles of different suppliers were used. Detailed description of the invention
- the invention can be used for instance for the purification of cells, viruses, subcellular organelles, proteins, and especially nucleic acid materials.
- the magnetic particles are preferably paramagnetic.
- the size of the particles is usually less than 50 ⁇ m, preferably 0.1 - 10 ⁇ m, and most preferably 1 - 5 ⁇ m.
- the concentration of the particles may be eg. 0.01 - 5 mg/ml, preferably 0.05 - 3 mg/ml, and most preferably 0.2 - 2 mg/ml.
- the particles have been coated or treated with a binding reagent, eg. silicon, lectins and or other reactive functional groups such a oligonucleotides, antibodies, antigens, streptavidin, or biotin.
- a binding reagent eg. silicon, lectins and or other reactive functional groups such a oligonucleotides, antibodies, antigens, streptavidin, or biotin.
- the particles are preferably transferred from a vessel to another by using a probe comprising a rod movable in a vertical bore and provided with a magnet at the lower end thereof.
- the probe is pushed into the mixture with the rod in the lower position, whereby the particles are collected on the probe. Then the probe is transferred to another vessel, and when the rod is pulled to its upper position the particles are released.
- detergents are suitable.
- Preferable detergents are ethoxylated anhydrosorbitol esters.
- the esters may contain eg. about 4 - 20 ethylene oxide groups.
- the concentration of a tenside may be eg. 0.001 - 0.5% (w/v), preferably 0.005 - 0.1% (w/v), and most preferably 0.01 - 0.05% (w/v).
- the concentration of a protein may be eg. 0.1 - 10% (w/v), preferably 0.25 - 5% (w/v), and most preferably 0.5 - 2% (w/v).
- the concentraion of a salt may be eg. 0.1 - 10 M, preferably 0.1 - 7 M.
- the nucleic acids are immobilized by using magnetic particles.
- the binding can be mediated by the interaction of streptavidin and biotin, whereby particles coated with streptavidin and biotinylated DNA can be used.
- DNA can be adsorbed to the surface of the particles.
- Oligo (dT) 25 covalently coupled to the surface of the particles.
- the nucleic acids are washed several times to remove all the reaction components resulting from the amplification or other contaminants and, e.g., PCR inhibitors.
- the washing can be performed by releasing and collecting complexes in a washing buffer and by transfering the complexes to another well containing fresh washing buffer.
- the immobilized double-stranded DNA can be converted to a single-stranded by incubation with 0.1 M NaOH and using magnetic separation.
- mRNA For the isolation of mRNA, it can be eluted from the particles by using a low salt buffer.
- the purification process can be performed by a magnetic particle processor, in which all the mediums are ready in separate vessel.
- a surface tension releasing compound is preferably used in each medium.
- Suitable disposable plates, such as microtitration plates, comprising the necessaryy vessels can be used. In one plate, several parallel purifications can be accomplished.
- Binding and Washing buffer 10 mM Tris-HCl, 1 mM EDTA, 2 M NaCl, eg. 0.02% Tween 20 TM, 15 mM NaN 3 , pH 7.5 3.
- TE buffer 10 m-M Tris-HCl, 1 mM EDTA, eg. 0.02% Tween 20 TM, 15 mM NaN 3 , pH 7.5
- Lysis/binding buffer 100 mM Tris-HCl, pH 8.0, 500 mM LiCl, 10 mM EDTA, 1% LiDS, 5 mM dithiothreitol (DTT), 15 mM NaN 3 , (eg. 0.02% Tween 20 TM)
- Washing buffer with LiDS 10 mM Tris-HCl, pH 8.0, 0.15 M LiCl, 1 mM EDTA, 0.1% LiDS, 15 mM NaN 3 (eg. 0.02% Tween 20 TM)
- Washing buffer 10 mM Tris-HCl, pH 8.0, 0.15 M LiCl, 1 mM EDTA, eg. 0.02%) Tween 20 TM, 15 mM NaN 3
- Reconditioning solution 0.1 M NaOH , eg. 0.02% Tween 20 TM
- Storage buffer Oligo (dT) 25 250 mM Tris-Hcl, pH 8, 20 mM EDTA, 0.1% Tween-20, 15 mM NaN 3
- Binding buffer 20 mM Tris-HCl, pH 7.5, 1.0 M LiCl, 2 mM EDTA, 15 mM NaN 3 , eg. 0.02% Tween 20 TM
- Washing buffer 10 mM Tris-HCl, pH 8.0, 0.15 mM LiCl, 1 mM EDTA, 15 mM NaN 3 , eg. 0.02% Tween 20 TM
- Particle suspension in Lysis buffer eg. 50 mM Tris-HCl, pH 7.2, 50 mM EDTA, 3% SDS, 1% 2-mercaptoethanol; 50 mM KCl, 10 - 20 mM Tris-HCl, 2.5 mM MgCl 2 , pH 8.3, 0.5 Tween 20 TM, 100 ⁇ g/ml Proteinase K; 100 mM Tris-HCl, pH 8.5, 5 mM EDTA, 1% SDS, 500 ⁇ g ml Proteinase K) containing 15 mM NaN 3
- Lysis buffer eg. 50 mM Tris-HCl, pH 7.2, 50 mM EDTA, 3% SDS, 1% 2-mercaptoethanol
- 50 mM KCl 10 - 20 mM Tris-HCl, 2.5 mM MgCl 2 , pH 8.3, 0.5 Tween 20 TM, 100 ⁇ g/ml Proteinase K
- the reagents are dispensed into a subsequent wells of a plate.
- Example of a reagent configuration Well 1. Sample (biotinylated DNA, PCR amplicons) Well 2. Streptavidin coated magnetic particles in washing buffer Wells 3 - 5. Washing buffer Well 6. NaOH Well 7. TE buffer Well 8. Distilled water
- Streptavidin coated magnetic particles (sizes: Scigen streptavidin 3 ⁇ m; Scigen; SPHEROTM streptavidin 4 - 4.5 ⁇ m, Spherotec, Dynabeads M-280 streptavidin 2.8 ⁇ m, Dynal) were saturated with biotinylated alkaline phosphatase (Calbiochem, San Diego, CA) for 1 h at +37 °C. Saturated particles were first washed to remove the unbound alkaline phosphatase and were then used to examine the effect of STRA in collecting and releasing steps of a magnetic particle processor. The instrument settings of these examples were adjusted from 20 ⁇ l to 200 ⁇ l and the capacity range of the processor was 1 - 24 samples per run. The processor utilized a rod magnet (cylindrical NdFeB axially magnetized, length 2 mm, width 3 mm) in polypropene tube (outer width 4.5 mm).
- the particles were processed by releasing and collecting them from well to well so that the whole process comprised of 10 steps.
- alkaline phosphatase saturated particles (0.016 ⁇ g - 1 ⁇ g particles / 10 ⁇ l diluent) were used as standards.
- DEA diethanolamine
- the substrate was incubated for 15 minutes at +37 °C with continuous shaking (900 rpm) in Labsystems iEMS Incubator/Shaker.
- the reaction was stopped by adding 100 ⁇ l 1M NaOH into each well and the absorbances at 405 run were measured by photometer (Labsystems Multiskan).
- the amount of remaining particles was determined from a linear standard curve and finally results were expressed as percentage of initial amount of particles (0.2 mg/well).
- Fig 1. is shown the effect of detergent (Tween 20 TM) in different concentrations.
- the degree of remaining particles (Scigen streptavidin) were over 3% / well, when surface tension releasing agent was not added into the collecting and releasing buffer.
- the detergent concentration was > 0.00125%, the particles were collected efficiently.
- Fig 2. is shown the effect of salt and saccharose in collecting and releasing buffer. By adding these components into the buffer, the collection of particles (Scigen streptavidin) was more efficient.
- Fig 3. is shown the effect of a protein (casein) which was improving the collecting steps of particles (SPHEROTM streptavidin) in some degree.
- Fig. 4 is shown the effect of detergent (Tween 20 TM) when the magnetic particles of different suppliers were used.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Biomedical Technology (AREA)
- Wood Science & Technology (AREA)
- General Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Zoology (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biotechnology (AREA)
- Plant Pathology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Microbiology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Soft Magnetic Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000593954A JP3546410B2 (en) | 1999-01-18 | 2000-01-18 | Purification method using magnetic particles |
AT00901629T ATE298087T1 (en) | 1999-01-18 | 2000-01-18 | CLEANING METHOD USING MAGNETIC PARTICLES |
DE60020810T DE60020810T2 (en) | 1999-01-18 | 2000-01-18 | CLEANING PROCEDURE USING MAGNETIC PARTICLES |
EP00901629A EP1145010B1 (en) | 1999-01-18 | 2000-01-18 | Purification process using magnetic particles |
NO20013541A NO20013541L (en) | 1999-01-18 | 2001-07-17 | Method of purification using magnetic particles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI990082 | 1999-01-18 | ||
FI990082A FI990082A0 (en) | 1999-01-18 | 1999-01-18 | Purification process using magnetic particles |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000042432A1 true WO2000042432A1 (en) | 2000-07-20 |
Family
ID=8553387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI2000/000031 WO2000042432A1 (en) | 1999-01-18 | 2000-01-18 | Purification process using magnetic particles |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1145010B1 (en) |
JP (1) | JP3546410B2 (en) |
AT (1) | ATE298087T1 (en) |
DE (1) | DE60020810T2 (en) |
FI (1) | FI990082A0 (en) |
NO (1) | NO20013541L (en) |
RU (1) | RU2239192C2 (en) |
WO (1) | WO2000042432A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1069131A1 (en) * | 1999-07-15 | 2001-01-17 | QIAGEN GmbH | Methods for separating particulate substrates from solution while minimizing particle loss |
EP1108743A2 (en) * | 1999-12-08 | 2001-06-20 | JSR Corporation | Virus-binding particles, virus-separating reagent, separation of viruses, and detection of viruses |
WO2001079456A2 (en) * | 2000-04-18 | 2001-10-25 | Cancer Research Technology Limited | Materials and methods relating to increasing viral titre |
WO2003062462A2 (en) * | 2002-01-16 | 2003-07-31 | Dynal Biotech Asa | Method for isolating nucleic acids and protein from a single sample |
US8691969B2 (en) | 1994-12-12 | 2014-04-08 | Life Technologies As | Isolation of nucleic acid |
RU2630642C1 (en) * | 2016-11-15 | 2017-09-11 | Общество с ограниченной ответственностью "Научно Производственное Объединение ДНК-Технология" | Device for allocation of nucleic acids |
US9878323B2 (en) | 2005-12-21 | 2018-01-30 | Meso Scale Technologies, Llc | Assay modules having assay reagents and methods of making and using same |
US10794914B2 (en) | 2005-12-21 | 2020-10-06 | Meso Scale Technologies, Llc | Assay apparatuses, methods and reagents |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006033596A1 (en) * | 2004-08-16 | 2006-03-30 | Anatolij Ivanovich Malakhov | Heat supply system |
JP5845156B2 (en) * | 2005-12-21 | 2016-01-20 | メソ スケール テクノロジーズ エルエルシー | Assay module comprising assay reagent, method for producing the same and method for using the same |
US8222048B2 (en) | 2007-11-05 | 2012-07-17 | Abbott Laboratories | Automated analyzer for clinical laboratory |
PE20120524A1 (en) * | 2008-12-11 | 2012-04-28 | Basf Se | ENRICHMENT OF MINERALS FROM MINING WASTE |
RU2451747C2 (en) * | 2009-08-13 | 2012-05-27 | Закрытое акционерное общество "Научно-производственная фирма ДНК-Технология" | Method for homogenising biological samples containing magnetic nanoparticles when extracting dna during automatic sample preparation for pcr analysis |
US8475662B2 (en) * | 2009-11-30 | 2013-07-02 | Basf Se | Modified HIMS process |
US8784734B2 (en) | 2010-05-20 | 2014-07-22 | Abbott Laboratories | Reusable sheaths for separating magnetic particles |
RU2484139C1 (en) * | 2012-05-17 | 2013-06-10 | Общество с ограниченной ответственностью "Научно-Производственное Объединение ДНК-Технология" | Device to extract nucleic acids |
US11340244B2 (en) | 2019-03-15 | 2022-05-24 | Siemens Healthcare Diagnostics Inc. | Method and apparatus for magnetic bead manipulation |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996012959A1 (en) * | 1994-10-20 | 1996-05-02 | Labsystems Oy | Magnetic particle transfer device |
WO1996018731A2 (en) * | 1994-12-12 | 1996-06-20 | Dynal A/S | Isolation of nucleic acid |
US5705628A (en) * | 1994-09-20 | 1998-01-06 | Whitehead Institute For Biomedical Research | DNA purification and isolation using magnetic particles |
WO1998031840A1 (en) * | 1997-01-21 | 1998-07-23 | Promega Corporation | Methods of isolating biological target materials using silica magnetic particles |
-
1999
- 1999-01-18 FI FI990082A patent/FI990082A0/en unknown
-
2000
- 2000-01-18 JP JP2000593954A patent/JP3546410B2/en not_active Expired - Lifetime
- 2000-01-18 DE DE60020810T patent/DE60020810T2/en not_active Expired - Lifetime
- 2000-01-18 WO PCT/FI2000/000031 patent/WO2000042432A1/en active IP Right Grant
- 2000-01-18 EP EP00901629A patent/EP1145010B1/en not_active Expired - Lifetime
- 2000-01-18 AT AT00901629T patent/ATE298087T1/en active
- 2000-01-18 RU RU2001123422A patent/RU2239192C2/en active
-
2001
- 2001-07-17 NO NO20013541A patent/NO20013541L/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5705628A (en) * | 1994-09-20 | 1998-01-06 | Whitehead Institute For Biomedical Research | DNA purification and isolation using magnetic particles |
WO1996012959A1 (en) * | 1994-10-20 | 1996-05-02 | Labsystems Oy | Magnetic particle transfer device |
WO1996018731A2 (en) * | 1994-12-12 | 1996-06-20 | Dynal A/S | Isolation of nucleic acid |
WO1998031840A1 (en) * | 1997-01-21 | 1998-07-23 | Promega Corporation | Methods of isolating biological target materials using silica magnetic particles |
Non-Patent Citations (1)
Title |
---|
ANIL WIPAT ET AL.: "Monoclonal antibodies for Streptomyces lividans and their use for immunomagnetic capture of spores from soil", MICROBIOLOGY, vol. 140, 1994, pages 2067 - 2076, XP002927468 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8691969B2 (en) | 1994-12-12 | 2014-04-08 | Life Technologies As | Isolation of nucleic acid |
EP1069131A1 (en) * | 1999-07-15 | 2001-01-17 | QIAGEN GmbH | Methods for separating particulate substrates from solution while minimizing particle loss |
EP1108743A2 (en) * | 1999-12-08 | 2001-06-20 | JSR Corporation | Virus-binding particles, virus-separating reagent, separation of viruses, and detection of viruses |
EP1108743A3 (en) * | 1999-12-08 | 2002-02-06 | JSR Corporation | Virus-binding particles, virus-separating reagent, separation of viruses, and detection of viruses |
WO2001079456A2 (en) * | 2000-04-18 | 2001-10-25 | Cancer Research Technology Limited | Materials and methods relating to increasing viral titre |
WO2001079456A3 (en) * | 2000-04-18 | 2003-04-24 | Cancer Rec Tech Ltd | Materials and methods relating to increasing viral titre |
WO2003062462A3 (en) * | 2002-01-16 | 2003-12-11 | Dynal Biotech Asa | Method for isolating nucleic acids and protein from a single sample |
WO2003062462A2 (en) * | 2002-01-16 | 2003-07-31 | Dynal Biotech Asa | Method for isolating nucleic acids and protein from a single sample |
US9878323B2 (en) | 2005-12-21 | 2018-01-30 | Meso Scale Technologies, Llc | Assay modules having assay reagents and methods of making and using same |
US10794914B2 (en) | 2005-12-21 | 2020-10-06 | Meso Scale Technologies, Llc | Assay apparatuses, methods and reagents |
US11065615B2 (en) | 2005-12-21 | 2021-07-20 | Meso Scale Technologies, Llc | Assay modules having assay reagents and methods of making and using same |
US11300571B2 (en) | 2005-12-21 | 2022-04-12 | Meso Scale Technologies, Llc. | Assay apparatuses, methods and reagents |
US11892455B2 (en) | 2005-12-21 | 2024-02-06 | Meso Scale Technologies, Llc. | Assay apparatuses, methods and reagents |
RU2630642C1 (en) * | 2016-11-15 | 2017-09-11 | Общество с ограниченной ответственностью "Научно Производственное Объединение ДНК-Технология" | Device for allocation of nucleic acids |
Also Published As
Publication number | Publication date |
---|---|
ATE298087T1 (en) | 2005-07-15 |
NO20013541D0 (en) | 2001-07-17 |
EP1145010A1 (en) | 2001-10-17 |
FI990082A0 (en) | 1999-01-18 |
RU2239192C2 (en) | 2004-10-27 |
DE60020810T2 (en) | 2006-05-18 |
DE60020810D1 (en) | 2005-07-21 |
JP3546410B2 (en) | 2004-07-28 |
NO20013541L (en) | 2001-09-17 |
JP2002535620A (en) | 2002-10-22 |
EP1145010B1 (en) | 2005-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1145010B1 (en) | Purification process using magnetic particles | |
JP7408229B2 (en) | Polynucleotide capture materials and methods for their use | |
JP4856831B2 (en) | Apparatus and method for mixing magnetic particles with a fluid | |
EP1058851B1 (en) | Devide and method for transferring magnetic particles | |
US7972516B2 (en) | Device and method for separating, mixing and concentrating magnetic particles with a fluid and use thereof in purification methods | |
JP4291247B2 (en) | Methods for isolating nucleic acids | |
US9790250B2 (en) | Method for isolating short-chain nucleic acids | |
US8202693B2 (en) | Method of isolation of nucleic acids | |
US20050277204A1 (en) | Sample preparation methods and devices | |
KR20190092617A (en) | Lysis, binding and/or wash reagent for isolating and/or purifying nucleic acids | |
JP6684868B2 (en) | One-step method for purification of nucleic acids | |
JP2018524017A (en) | Apparatus and method for extracting nucleic acid | |
JP2003501644A (en) | Sample processing equipment | |
US20160046927A1 (en) | Methods and systems for differential extraction | |
AU2011202810A1 (en) | Device and method for separating, mixing and concentrating magnetic particles with a fluid and use thereof in purification methods |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP NO RU 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 |
|
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) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 09646204 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2000 593954 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2000901629 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2000901629 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2000901629 Country of ref document: EP |