JP4659013B2 - 磁性色素 - Google Patents
磁性色素 Download PDFInfo
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- JP4659013B2 JP4659013B2 JP2007280179A JP2007280179A JP4659013B2 JP 4659013 B2 JP4659013 B2 JP 4659013B2 JP 2007280179 A JP2007280179 A JP 2007280179A JP 2007280179 A JP2007280179 A JP 2007280179A JP 4659013 B2 JP4659013 B2 JP 4659013B2
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 34
- 239000011521 glass Substances 0.000 claims abstract description 57
- 239000002245 particle Substances 0.000 claims abstract description 39
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- 239000004365 Protease Substances 0.000 claims abstract description 8
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 claims abstract description 8
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims abstract description 8
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims abstract description 7
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 22
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 13
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- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 239000000523 sample Substances 0.000 abstract description 97
- 238000000034 method Methods 0.000 abstract description 73
- 238000006243 chemical reaction Methods 0.000 abstract description 56
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- 238000010828 elution Methods 0.000 abstract description 22
- 239000012472 biological sample Substances 0.000 abstract description 15
- 239000007787 solid Substances 0.000 abstract description 13
- 238000005406 washing Methods 0.000 abstract description 11
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- 238000002955 isolation Methods 0.000 abstract description 6
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052810 boron oxide Inorganic materials 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 40
- 238000002156 mixing Methods 0.000 description 24
- 108020004707 nucleic acids Proteins 0.000 description 20
- 102000039446 nucleic acids Human genes 0.000 description 20
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- 108010067770 Endopeptidase K Proteins 0.000 description 8
- 239000006249 magnetic particle Substances 0.000 description 8
- 108020004414 DNA Proteins 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
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- 230000009089 cytolysis Effects 0.000 description 4
- 239000013578 denaturing buffer Substances 0.000 description 4
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- 238000007885 magnetic separation Methods 0.000 description 4
- 239000006148 magnetic separator Substances 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 3
- 239000012148 binding buffer Substances 0.000 description 3
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- 230000003196 chaotropic effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- PJJJBBJSCAKJQF-UHFFFAOYSA-N guanidinium chloride Chemical compound [Cl-].NC(N)=[NH2+] PJJJBBJSCAKJQF-UHFFFAOYSA-N 0.000 description 3
- 210000002381 plasma Anatomy 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000005464 sample preparation method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 101100203596 Caenorhabditis elegans sol-1 gene Proteins 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical class NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 108020000999 Viral RNA Proteins 0.000 description 2
- 230000027455 binding Effects 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
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- 238000000605 extraction Methods 0.000 description 2
- ZJYYHGLJYGJLLN-UHFFFAOYSA-N guanidinium thiocyanate Chemical compound SC#N.NC(N)=N ZJYYHGLJYGJLLN-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
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- 241000606153 Chlamydia trachomatis Species 0.000 description 1
- 108010008286 DNA nucleotidylexotransferase Proteins 0.000 description 1
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- 102000016911 Deoxyribonucleases Human genes 0.000 description 1
- 108010053770 Deoxyribonucleases Proteins 0.000 description 1
- 102000003960 Ligases Human genes 0.000 description 1
- 108090000364 Ligases Proteins 0.000 description 1
- 102000016943 Muramidase Human genes 0.000 description 1
- 108010014251 Muramidase Proteins 0.000 description 1
- 108010062010 N-Acetylmuramoyl-L-alanine Amidase Proteins 0.000 description 1
- 238000012408 PCR amplification Methods 0.000 description 1
- 108010067372 Pancreatic elastase Proteins 0.000 description 1
- 102000016387 Pancreatic elastase Human genes 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 108010059712 Pronase Proteins 0.000 description 1
- 239000012162 RNA isolation reagent Substances 0.000 description 1
- 102000006382 Ribonucleases Human genes 0.000 description 1
- 108010083644 Ribonucleases Proteins 0.000 description 1
- 101150058348 SWE1 gene Proteins 0.000 description 1
- 238000002105 Southern blotting Methods 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 108020005202 Viral DNA Proteins 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 210000000601 blood cell Anatomy 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 239000000337 buffer salt Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 229940038705 chlamydia trachomatis Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 238000007796 conventional method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- ZRALSGWEFCBTJO-UHFFFAOYSA-O guanidinium Chemical compound NC(N)=[NH2+] ZRALSGWEFCBTJO-UHFFFAOYSA-O 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000006166 lysate Substances 0.000 description 1
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- 108020004999 messenger RNA Proteins 0.000 description 1
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- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000009871 nonspecific binding Effects 0.000 description 1
- 239000002773 nucleotide Substances 0.000 description 1
- 125000003729 nucleotide group Chemical group 0.000 description 1
- 238000000424 optical density measurement Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- 239000013612 plasmid Substances 0.000 description 1
- 239000013615 primer Substances 0.000 description 1
- 239000002987 primer (paints) Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 235000019833 protease Nutrition 0.000 description 1
- 238000003757 reverse transcription PCR Methods 0.000 description 1
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- 238000012163 sequencing technique Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
- H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
- H01F1/112—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles with a skin
-
- 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
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C14/00—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
- C03C14/004—Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix the non-glass component being in the form of particles or flakes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
- C07H1/06—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
- C07H1/06—Separation; Purification
- C07H1/08—Separation; Purification from natural products
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- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6806—Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/0098—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor involving analyte bound to insoluble magnetic carrier, e.g. using magnetic separation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/0099—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor comprising robots or similar manipulators
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Genetics & Genomics (AREA)
- Biomedical Technology (AREA)
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- Biotechnology (AREA)
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- Wood Science & Technology (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Microbiology (AREA)
- Biophysics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plant Pathology (AREA)
- Immunology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Dermatology (AREA)
- Power Engineering (AREA)
- Ceramic Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Robotics (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Sampling And Sample Adjustment (AREA)
- Saccharide Compounds (AREA)
- Glass Compositions (AREA)
- Hard Magnetic Materials (AREA)
Description
(a)反応容器中において、試料を溶解するステップ、
(b)固体吸着マトリックスを添加するステップ、
(c)被検物が該吸着マトリックスに結合するような条件下で、インキュベートするステップ、
(d)反応容器から非結合試料成分を除去するステップ、
(e)被検物が吸着マトリックスから溶出されるような条件下で、インキュベートし、
(f)該吸着マトリックスから溶出物を分離するステップ、
を含む、生体試料からの被検物の単離方法に用いられて達成される。
(a)反応容器中において、試料を溶解するステップ、
(b)固体吸着マトリックスを添加するステップ、
(c)被検物が該吸着マトリックスに結合するような条件下で、インキュベートするステップ、
(d)該吸着マトリックスから非結合試料成分を分離するステップ、
(e)被検物が該吸着マトリックスから溶出されるような条件下で、インキュベートするステップ、
(f)溶出物を該吸着マトリックスから分離するステップ、を含み、少なくともステップ(c)と(d)とが本質的に同じ温度で行なわれる、
生体試料からの被検物の単離方法に用いられる磁性色素である。
〔1〕 磁性コアと、SiO2 、B2O3 、アルカリ金属酸化物を含むガラスコートとを含有してなる磁性ガラス粒子、
〔2〕 ガラスコートがさらにAl2O3 およびアルカリ土類金属酸化物を含む、前記〔1〕記載の磁性ガラス粒子、ならびに
〔3〕 ガラスコートが、SiO2、B2 O3 およびNa2O、またはSiO2 、B2O3 、Al2 O3、K2 OおよびCaOを含んでなる、前記〔1〕または〔2〕記載の磁性ガラス粒子
に関する。
(a)プロテアーゼ、
(b)試料溶解緩衝液、
(c)洗浄緩衝液、
(d)溶出緩衝液、および
(e)磁性ガラス粒子の懸濁物、
を含有してなる、特に上述の方法を実施するのに適した試薬キットである。
−試料調製装置(1)、
−試薬用保持装置(2)、
−70℃以下、特に、40℃以下の操作温度を具備する試料調製用反応容器のための第1保持装置(3)、
−冷却手段および/または加熱手段を任意に含む、反応容器のための第2保持装置(4a、4b、4c)、および
−ロボットツール装置(5)
を含有した、生体試料から被検物を単離するための装置である。
2種類のゾルを使用した。前記ゾルは、下記:
ゾル1:(SiO 2 :B 2 O 3 :Na 2 O=40:8:2)
として調製した。
下記標準プロトコールは、全血や培養細胞などの生体試料から核酸を単離するのに適している。この方法で得られる核酸は、PCRによる増幅、制限消化またはサザンブロットに、溶出後直接使用できる。
1.結合緩衝液(4.7モル/l グアニジニウム塩酸塩、10mmol/l 尿素、10mmol/l トリス塩酸、20% TritonR X−10 0、pH5.7)
2.凍結乾燥プロテイナーゼK(濃度20mg/mlまでH2 Oに溶解)
3.洗浄緩衝液〔56%(v/v)エタノール、20mmol/l NaCl 、10mmol/l トリス塩酸、pH7.5〕
4.溶出緩衝液(10mmol/l トリス pH8.5)
5.磁性ガラス粒子(MPG)
a)それぞれが7.5mgのガラス粒子を含む錠剤、又は
b)15%ガラス粒子のエタノール懸濁物
を含む。
1. 試料200μlを2ml反応容器に添加し、200μlの結合緩衝液およびプロテイナーゼK溶液40μlとに混合する。次に、それを10分間インキュベートする。インキュベーションは、好ましくは、室温で行なう。しかしながら、特定の状況下では、インキュベーション温度を70℃まで上げることもできる。
2. インキュベーション後に、イソプロパノール200μlとMGP錠剤(または二者択一的にMGP懸濁物200μl)を加え、室温で5分間インキュベートする。
3. 反応容器を磁性粒子分離装置(Boehringer Mannheim社、カタログ番号1 641 794)に入れ、約1分間分離する。
4. 上清を捨て、反応容器をMP分離装置から取り出す。
5. 洗浄緩衝液500μlの添加後に、その反応容器の内容物を混合し、再びMP分離装置に約1分間入れる。
6. 上清を捨てる。ステップ5を3回繰り返す。直前の洗浄処理後に、残留している洗浄緩衝液を完全に除去する。
7. 溶出のために、70℃に任意に予備加熱される100μlの溶出緩衝液を加える。次にそれを混合し、室温で5分間インキュベートする。試料をMP分離装置に入れ、その上清を新しい反応容器に移す。
8. この方法で得られた核酸、例えばDNAは、安定であり、ついで、さらに直接処理されるか、4℃で保存されうる。
3.1 試料調製のためのマニュアル標準プロトコール
200μlの尿試料と240μlの結合緩衝液/プロテイナーゼK溶液(5:1)とを2ml反応容器にピペッティングし、ボルテックス混合に供して、70℃で10分間インキュベートする。次に、試料を5分間室温に冷却する。
3.1に記載のボルテックス混合とサーモブロックでの加熱の代わりに、混合と加熱とが混合および加熱モジュールで行なわれる半自動化処理を行なう。図4は、マニュアル標準プロトコール(ボルテックス)と半自動化処理(MTM)との間のクラミジアの決定(試料:尿100mlにつき100基本抗体(elementary antibody);6重測定)の比較を表す。自動化によって感度が損なわれないことがわかる。
試料調製を3.2項に記述したように行なう。しかしながら、溶解および溶出を室温で行なう。
3.3項に記載のように試料調製を行なう。溶出後に、70℃で10分間のインキュベーションを行なう。
4.1 試料調製に関するマニュアル標準プロトコール
凍結血漿を37℃で5分間融解し、さらなる処理のために氷上で冷却する。
混合と加熱とを混合および加熱モジュールで行なったこと以外は、セクション4.1に記述したように試料調製を行なう。
すべてのステップを室温で行なうこと以外は、本質的に4.2項に記述したように試料調製を行なう。溶解、吸着および溶出のためのインキュベーション期間は、各ケースで15分である。
〔1〕 (a)反応容器中において、試料を溶解するステップ、
(b)固体吸着マトリックスを添加するステップ、
(c)被検物が該吸着マトリックスに結合するような条件下で、インキュベートするステップ、
(d)該反応容器から非結合試料成分を除去するステップ、
(e)被検物が該吸着マトリックスから溶出されるような条件下で、インキュベートするステップ、および
(f)該吸着マトリックスから溶出物を分離するステップ、
を含む、生体試料から被検物を単離する方法。
〔2〕 ステップ(a)がプロテアーゼと変性緩衝液とを添加することを含む、前記〔1〕記載の方法。
〔3〕 プロテアーゼとして、プロテイナーゼKを使用する、前記〔2〕記載の方法。
〔4〕 グアニジニウム塩、特に、グアニジニウム塩酸塩および/またはグアニジニウムチオシアン酸塩を含む変性緩衝液を用いる、前記〔2〕記載の方法。
〔5〕 固体吸着マトリックスとして、磁性ガラス粒子を用いる、前記〔1〕〜〔4〕いずれかに記載の方法。
〔6〕 懸濁物の形態で磁性ガラス粒子を添加する、前記〔5〕記載の方法。
〔7〕 ガラス相がSiO2 、B2 O3 およびNa2 Oを含むもの、またはSiO2 、B2 O3 、Al2 O3 、CaOおよびK2 Oを含むものであるガラス粒子を用いる、前記〔5〕または〔6〕記載の方法。
〔8〕 吸着マトリックスの添加量が、試料中に存在する被検物を定量的に結合するのに要する量の多くて50%を超える量である、前記〔1〕〜〔7〕いずれかに記載の方法。
〔9〕 少なくともステップ(c)、(d)および/または(e)の間、外部装置を加えることなく、連続的混合または断続的混合を行なう、前記〔1〕〜〔8〕いずれかに記載の方法。
〔10〕 混合が、反応容器をその縦軸を中心として回転させることにより達成される、前記〔9〕記載の方法。
〔11〕 ステップ(c)および/または(e)を行なう最大期間がそれぞれ20分である、前記〔9〕または〔10〕記載の方法。
〔12〕 ステップ(d)が、任意に数回繰り返される、洗浄緩衝液の添加および吸引を含む、前記〔1〕〜〔11〕いずれかに記載の方法。
〔13〕 水と混和できる有機溶媒を少なくとも50%(v/v)の含有量で有する洗浄緩衝液を用いる、前記〔12〕記載の方法。
〔14〕 ステップ(e)において、酵素などの助剤を添加する、前記〔1〕〜〔13〕いずれかに記載の方法。
〔15〕 ステップ(e)における溶出のために、低塩緩衝液を用いる、前記〔1〕〜〔14〕いずれかに記載の方法。
〔16〕 ステップ(e)の溶出のために、核酸増幅マスターミックスを添加する、前記〔1〕〜〔14〕いずれかに記載の方法。
〔17〕 少なくともステップ(c)および(d)を本質的に同じ温度で行なう、前記〔1〕〜〔16〕いずれかに記載の方法。
〔18〕 さらに、ステップ(a)および/またはステップ(e)を本質的に同じ温度で行なう、前記〔17〕記載の方法。
〔19〕 温度が、室温〜40℃の範囲にある、前記〔17〕または〔18〕記載の方法。
〔20〕 温度が、18℃〜32℃の範囲にある、前記〔17〕〜〔19〕いずれかに記載の方法。
〔21〕 ステップ(a)および/またはステップ(e)を上昇された温度で行なう、前記〔1〕〜〔20〕いずれかに記載の方法。
〔22〕 上昇された温度における後処理ステップをステップ(f)の後に行なう、前記〔1〕〜〔21〕いずれかに記載の方法。
〔23〕 上昇された温度が40℃を超える温度〜95℃の範囲にある、前記〔21〕または〔22〕記載の方法。
〔24〕 (a)反応容器中において、試料を溶解するステップ、
(b)固体吸着マトリックスを添加するステップ、
(c)被検物が吸着マトリックスに結合するような条件下で、インキュベートするステップ、
(d)吸着マトリックスから非結合試料成分を分離するステップ、
(e)被検物が吸着マトリックスから溶出されるような条件下で、インキュベートするステップ、ならびに
(f)吸着マトリックスから溶出物を分離するステップ、
を含み、ここで、少なくともステップ(c)および(d)を本質的に同じ温度で行なう、生体試料から被検物を単離する方法。
〔25〕 被検物が核酸である、前記〔1〕〜〔24〕いずれかに記載の方法。
〔26〕 方法が自動装置で行なわれる、前記〔1〕〜〔25〕いずれかに記載の方法。
〔27〕 ステップ(a)〜(e)を1つの反応容器で行なう、前記〔1〕または〔24〕記載の方法。
〔28〕 (a)プロテアーゼ、
(b)試料溶解緩衝液、
(c)洗浄緩衝液、
(d)溶出緩衝液、および
(e)磁性ガラス粒子の懸濁物、
を含有してなる、前記〔1〕〜〔27〕いずれかに記載の方法を特に行なうための試薬キット。
〔29〕 ガラス相がSiO2 、B2 O3 およびNa2 Oを含むものである磁性ガラス粒子を含有してなる、DNAの単離用試薬キット。
〔30〕 ガラス相がSiO2 、B2 O3 、Al2 O3 、CaOおよびK2 Oを含むものである磁性ガラス粒子を含有してなる、RNAの単離用試薬キット。
〔31〕 − 試料調製装置(1)、
− 試薬用保持装置(2)、
− 70℃以下、特に、40℃以下の操作温度を具備する、試料調製用反応容器のための第1保持装置(3)、
− 冷却手段および/または加熱手段を任意に含む、反応容器のための第2保持装置(4a、4b、4c)、
−およびロボットツール装置(5)
を含有してなる、生体試料から被検物を単離するための装置。
〔32〕 1つの反応容器が、試料を溶解すること、被検物を固体吸着マトリックスに吸着させること、該吸着マトリックスを洗浄すること、および該吸着マトリックスから被検物を溶出することのために用いられる、前記〔31〕記載の装置。
〔33〕 第1保持装置が、試料調製用および少なくとも被検物の固体吸着マトリックスへの吸着用並びに該吸着マトリックスの洗浄用の反応容器を保持するために用いられる、前記〔31〕または〔32〕のいずれかに記載の装置。
〔34〕 第1保持装置が、さらに試料調製用、試料溶解用および/または吸着マトリックスからの被検物の溶出用の反応容器を保持するために用いられる、前記〔33〕記載の装置。
〔35〕 反応容器を保持するための第2保持装置が、被検物を保存するためおよび/またはさらに該被検物を処理するために用いられる、前記〔31〕〜〔34〕いずれかに記載の装置。
〔36〕 試薬用容器を保持するための第2保持装置が、さらに試料を処理するために用いられる、前記〔31〕〜〔35〕いずれかに記載の装置。
〔37〕 反応容器を保持するための第2保持装置が、試料を溶解すること、吸着マトリックスから試料を溶出することおよび溶出後の後処理ステップから選ばれる、上昇された温度における少なくとも1つの処理ステップのために用いられる、前記〔31〕〜〔36〕いずれかに記載の装置。
〔38〕 第1保持装置が、磁性分離のための手段を含んでなる、前記〔31〕〜〔37〕いずれかに記載の装置。
〔39〕 第1保持装置が、反応容器をその縦軸を中心とした回転により混合するための手段を含んでなる、前記〔31〕〜〔38〕いずれかに記載の装置。
〔40〕 ロボットツールが、自動ピペッティング装置と、任意に反応容器を開閉するための手段とを含有してなる、前記〔31〕〜〔39〕いずれかに記載の装置。
〔41〕 ロボットツールが、第1保持装置と第2保持装置との間で、反応容器を輸送するための手段を含有してなる、前記〔31〕〜〔40〕いずれかに記載の装置。
〔42〕 磁性コアと、SiO2 、B2 O3 、アルカリ金属酸化物、ならびに任意にAl2 O3 およびアルカリ土類金属酸化物を含むガラスコートとを含有してなる磁性ガラス粒子。
〔43〕 ガラスコートが、SiO2 、B2 O3 およびNa2 O、またはSiO2 、B2 O3 、Al2 O3 、K2 OおよびCaOを含んでなる、前記〔42〕記載のガラス粒子。
Claims (3)
- 磁性ガラス粒子、該粒子のガラス相は、SiO 2 、B 2 O 3 、Al 2 O 3 、CaOおよびK 2 Oを含む、ならびに
(a)プロテアーゼ、
(b)試料溶解緩衝液、
(c)洗浄緩衝液、および
(d)溶出緩衝液
を含んでなる、RNAの単離用試薬キットであって、該ガラス相に基づく該金属酸化物の含有量は、
50〜95モル% SiO 2 、
0.2〜15モル% B 2 O 3 、
2〜10モル% Al 2 O 3 、
2〜20モル% CaO、および
0.2〜5モル% K 2 O
である、試薬キット。 - 磁性コアおよびガラスコートを含んでなる磁性ガラス粒子であって、該ガラスコートは、SiO2、B2O3、Al2O3、アルカリ土類金属酸化物、およびアルカリ金属酸化物を含み、該ガラスコートに基づく該金属酸化物の含有量が、
50〜95モル% SiO2、
0.2〜15モル% B2O3、
2〜10モル% Al2O3、
2〜20モル% アルカリ土類金属酸化物、および
0.2〜5モル% アルカリ金属酸化物
である、RNAの単離用磁性ガラス粒子。 - アルカリ土類金属酸化物がCaOであり、アルカリ金属酸化物がK 2 Oである、請求項2記載の磁性ガラス粒子。
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JPH0238318A (ja) * | 1988-05-24 | 1990-02-07 | Alcan Internatl Ltd | 磁気吸引性粒子及びその製法 |
JPH11509364A (ja) * | 1995-06-08 | 1999-08-17 | ベーリンガー マンハイム ゲーエムベーハー | 磁性色素 |
Also Published As
Publication number | Publication date |
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IL135299A0 (en) | 2001-05-20 |
PT1019430E (pt) | 2007-10-16 |
JP2008134239A (ja) | 2008-06-12 |
WO1999016781A2 (de) | 1999-04-08 |
DE19743518A1 (de) | 1999-04-15 |
DE59814056D1 (de) | 2007-08-23 |
WO1999016781A3 (de) | 1999-09-16 |
ATE366739T1 (de) | 2007-08-15 |
IL135299A (en) | 2010-11-30 |
DK1019430T3 (da) | 2007-11-12 |
CA2305171C (en) | 2008-06-17 |
ES2290996T3 (es) | 2008-02-16 |
AU1028299A (en) | 1999-04-23 |
JP4048022B2 (ja) | 2008-02-13 |
JP2001518284A (ja) | 2001-10-16 |
US6562568B1 (en) | 2003-05-13 |
EP1783135A1 (de) | 2007-05-09 |
CA2305171A1 (en) | 1999-04-08 |
EP1019430A2 (de) | 2000-07-19 |
JP2007175060A (ja) | 2007-07-12 |
ES2398713T3 (es) | 2013-03-21 |
KR20010024366A (ko) | 2001-03-26 |
EP1783135B1 (de) | 2012-11-07 |
EP1019430B1 (de) | 2007-07-11 |
US20030199078A1 (en) | 2003-10-23 |
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