DK2016401T3 - Apparat til måling af magnetiske partikler, og dertil svarende fremgangsmåde - Google Patents
Apparat til måling af magnetiske partikler, og dertil svarende fremgangsmåde Download PDFInfo
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- DK2016401T3 DK2016401T3 DK07730698.3T DK07730698T DK2016401T3 DK 2016401 T3 DK2016401 T3 DK 2016401T3 DK 07730698 T DK07730698 T DK 07730698T DK 2016401 T3 DK2016401 T3 DK 2016401T3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
-
- 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
- B03C1/015—Pretreatment specially adapted for magnetic separation by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation
-
- 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
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- 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
- G01N33/54313—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being characterised by its particulate form
- G01N33/54326—Magnetic particles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1269—Measuring magnetic properties of articles or specimens of solids or fluids of molecules labeled with magnetic beads
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1276—Measuring magnetic properties of articles or specimens of solids or fluids of magnetic particles, e.g. imaging of magnetic nanoparticles
-
- 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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/24—Details of magnetic or electrostatic separation for measuring or calculating parameters, efficiency, etc.
-
- 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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/26—Details of magnetic or electrostatic separation for use in medical applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/435—Assays involving biological materials from specific organisms or of a specific nature from animals; from humans
- G01N2333/46—Assays involving biological materials from specific organisms or of a specific nature from animals; from humans from vertebrates
- G01N2333/47—Assays involving proteins of known structure or function as defined in the subgroups
- G01N2333/4701—Details
- G01N2333/4737—C-reactive protein
-
- 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
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Biomedical Technology (AREA)
- Urology & Nephrology (AREA)
- Hematology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Cell Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Electrochemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Claims (15)
1. Apparat (10) til kvalitativ og kvantitativ måling af en magnetisk markeret ana-lyt (12), hvorved apparatet (10) omfatter en spoleanordning, som er dannet af mindst én målespole (13) og en referencespole (18), der sammen er tilsluttet til en mellemudgang (15) med henblik på måling af analyten (12) fra en sample (prøveemne), som er absorberet i en sample-bærer (prøveemne-basis) (11) i forbindelse med den mindst ene målespole (13), og hvorved apparatet er indrettet til, ved hjælp af signalet (32) fra mellemudgangen (15) i spoleanordningen (13, 18), at detektere en induktivitets-ændring, som er korreleret med indholdet af den magnetisk markerede analyt (12), kendetegnet ved, at induktivi-tets-ændringen detekteres ud ffa en ændring af amplituden (ΔΑ) og/eller en ændring (Δφ) af udgangssignalets (32) fase, hvilket måles på mellemudgangen (15) i spoleanordningen (13, 18), og som er indrettet til at blive målt ved indgangssignalets (31) frekvens, og hvorved apparatet (10) ydermere omfatter en anden spoleanordning (18, 19, 20) med henblik på kompensation af fejlsignaler, som skyldes omgivelserne og/eller magnetiske partikler, der uspecifikt er bundet til samplebæreren (11).
2. Apparat ifølge krav 1, kendetegnet ved, at, med henblik på forøgelse af målespolens (13) induktive reaktans, så den bliver større end resistansen, appara-tets (10) målefrekvens indstilles til 106 - 108 Hz.
3. Apparat (10) ifølge krav 1 eller 2, kendetegnet ved, at i det mindste referencespolen (18) er en identisk kopi eller et spejlbillede af målespolen (13).
4. Apparat (10) ifølge et af kravene 1 til 3, kendetegnet ved, at målespolen (13), referencespolen (18) og den eventuelle kompenserings-spolestruktur (19, 20) er indrettet til at danne en differentiel spoleanordning, i hvilken outputtet er en differens mellem to signaler.
5. Apparat (10) ifølge et af kravene 1 eller 4, kendetegnet ved, at kompense-rings-spolestrukturen omfatter mindst to spoler (19, 20), som er anbragt syrn- metrisk i forhold til mindst én akse med målesignalledere (15, 17) og målespolen (13) og referencespolen (18).
6. Apparat (10) ifølge et af kravene 1, 4 eller 5, kendetegnet ved, at målespolen (13), referencespolen (18) og kompenserings-spolestrukturen (19, 20) er anbragt i forhold til hinanden i en impedansbro.
7. Apparat (10) ifølge et af kravene 1 eller 4-6, kendetegnet ved, at målespolen (13), referencespolen (18) og kompenseringsspole-strukturen (19, 20) er identiske med hensyn til mindst én størrelse blandt induktans, resistans og/eller ka-pacitans.
8. Apparat (10) ifølge krav 6 eller 7, kendetegnet ved, at spolerne (13, 18-20), der danner impedansbroen, er anbragt i form af en plan matrix.
9. Apparat (10) ifølge et af kravene 6 til 8, kendetegnet ved, at spolerne (13, 18-20), der danner impedansbroen, er anbragt i en lagdelt struktur.
10. Apparat (10) ifølge et af kravene 1-9, kendetegnet ved, at sample-bæreren (11) er integreret i apparatet (10) på en sådan måde, at den interaktivt er i forbindelse med spoleanordningen (13, 18), hvorved en afstand mellem samplebæreren (11) og målespolen (13) er mindre end 1/10 af en diameter i spolen (13).
11. Apparat ifølge et af kravene 1-10, kendetegnet ved, at målespolen (13) og referencespolen (18) er anbragt symmetrisk i forhold til målesignalledeme (15, 17).
12. Fremgangsmåde til kvalitativ eller kvantitativ måbng af en analyt (12), hvorved der anvendes en sample-bærer (11) til måling af analyten (12), og ved hvilken fremgangsmåde en sample absorberes i sample-bæreren (11), og sample-bæreren (11) analyseres ved anvendelse af en spoleanordning, som er dannet af mindst én målespole (13) og en referencespole (18), der er placeret i forbindelse med en mellemudgang (15), og hvorved der på basis af signalet (32) fra mellemudgangen detekteres en induktivitets-ændring, der korrelerer med indholdet af den magnetisk markerede analyt (12), kendetegnet ved, at induktivitets-ændringer detekteres ud fra en ændring (ΔΑ) i amplituden og/eller en ændring (Δφ) i fasen, og som viser sig i udgangssignalet (32) fra spoleanordningen (13, 18), og hvilken ændring måles ved impuls signalets (31) frekvens, og hvorved desuden fejlsignaler, som forårsages af omgivelserne og/eller magnetiske partikler, som uspecifikt er bundet til sample-bæreren (11), bliver kompenseret af en anden spoleanordning (18, 19, 20).
13. Fremgangsmåde ifølge krav 12, kendetegnet ved, at spoleanordningen i det mindste omfatter en målespole (13) samt en referencespole (18), der er anbragt i forbindelse med den, og med henblik på forøgelse af målespolens (13) induktive reaktans, så den bliver større end resistansen målingen udføres ved anvendelse af en målefrekvens på 106-108 Hz.
14. Fremgangsmåde ifølge krav 13, kendetegnet ved, at kompenseringen udføres ved anvendelse af en differentiel spoleanordning.
15. Fremgangsmåde ifølge et hvilket som helst af kravene 12-14, kendetegnet ved, at ved fremgangsmåden absorberes samplen i en sample-bærer (11), som interaktivt integreres med i det mindste en del af spoleanordningen (13, 18, 19, 20), hvorved en afstand mellem sample-bæreren (11) og målespolen (13) er mindre end 1/10 af en diameter for målespolen (13).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20065257A FI20065257A0 (fi) | 2006-04-21 | 2006-04-21 | Magneettisten partikkelien mittausjärjestelmä ja menetelmä |
FI20065502A FI121248B (fi) | 2006-04-21 | 2006-07-27 | Laite magneettisten partikkelien mittaamiseksi ja vastaava menetelmä |
PCT/FI2007/050211 WO2007122293A1 (en) | 2006-04-21 | 2007-04-20 | Device for measuring magnetic particles and corresponding method |
Publications (1)
Publication Number | Publication Date |
---|---|
DK2016401T3 true DK2016401T3 (da) | 2018-07-16 |
Family
ID=36758349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK07730698.3T DK2016401T3 (da) | 2006-04-21 | 2007-04-20 | Apparat til måling af magnetiske partikler, og dertil svarende fremgangsmåde |
Country Status (10)
Country | Link |
---|---|
US (1) | US8026716B2 (da) |
EP (1) | EP2016401B1 (da) |
JP (1) | JP5128581B2 (da) |
AU (1) | AU2007242719B2 (da) |
CA (1) | CA2646107C (da) |
DK (1) | DK2016401T3 (da) |
ES (1) | ES2675046T3 (da) |
FI (1) | FI121248B (da) |
MX (1) | MX2008013596A (da) |
WO (1) | WO2007122293A1 (da) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011513755A (ja) * | 2008-03-07 | 2011-04-28 | カリフォルニア インスティテュート オブ テクノロジー | 磁性粒子検出を基本とする実効インダクタンスの変化 |
WO2010058059A1 (en) * | 2008-11-18 | 2010-05-27 | University Of Jyväskylä | A method for detecting specific nucleotide sequences |
US9599591B2 (en) | 2009-03-06 | 2017-03-21 | California Institute Of Technology | Low cost, portable sensor for molecular assays |
JP5008697B2 (ja) * | 2009-07-06 | 2012-08-22 | 中国電力株式会社 | 非破壊検査装置 |
DE102010040391B4 (de) * | 2010-09-08 | 2015-11-19 | Siemens Aktiengesellschaft | Magnetische Durchflusszytometrie zur Einzelzelldetektion |
US9778225B2 (en) | 2010-11-15 | 2017-10-03 | Regents Of The University Of Minnesota | Magnetic search coil for measuring real-time brownian relaxation of magnetic nanoparticles |
JP2014224741A (ja) * | 2013-05-16 | 2014-12-04 | 国立大学法人豊橋技術科学大学 | 磁性微粒子検出装置及び磁性微粒子検出方法 |
DE102013109467A1 (de) * | 2013-08-30 | 2015-03-05 | MRB Forschungszentrum für Magnet - Resonanz - Bayern e.V. | Verfahren und Vorrichtung zur Analyse eines magnetische Partikel umfassenden Probenvolumens |
FI127032B (fi) * | 2014-03-21 | 2017-10-13 | Magnasense Tech Oy | Mittausjärjestely, laite varustettuna mittausjärjestelyllä ja menetelmä näytteen mittaamiseksi |
DE102014205824A1 (de) | 2014-03-28 | 2015-10-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zur Messung des Beladungszustands von Partikeln |
US20180180687A1 (en) * | 2016-12-23 | 2018-06-28 | Caterpillar Inc. | Adjustable coil for magnetic particle inspection |
RU2675405C1 (ru) * | 2018-03-26 | 2018-12-19 | Общество С Ограниченной Ответственностью "Конструкторское Бюро "Дорс" (Ооо "Кб "Дорс") | Способ косвенного измерения при помощи дифференциального датчика и устройство для его реализации |
US11366050B1 (en) | 2019-01-29 | 2022-06-21 | Dmitri Litvinov | Ultra-sensitive volumetric magnetic particle detector |
US11885800B2 (en) | 2019-10-18 | 2024-01-30 | Imra America, Inc. | Method and system for detecting analyte of interest using magnetic field sensor and magnetic particles |
FR3102851B1 (fr) | 2019-10-31 | 2021-11-12 | Lionel Cima | Dispositif de mesure d'une quantite de materiau superparamagnetique et utilisation d’un tel dispositif |
Family Cites Families (13)
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---|---|---|---|---|
US4706020A (en) * | 1983-12-12 | 1987-11-10 | General Electric Company | High frequency eddy current probe with planar, spiral-like coil on flexible substrate for detecting flaws in semi-conductive material |
GB2186978B (en) * | 1985-10-10 | 1990-06-13 | Dennis Amerena Parker | High resolution magnetometer |
US5001424A (en) * | 1989-02-03 | 1991-03-19 | Product Resources, Inc. | Apparatus for measuring magnetic particles suspended in a fluid based on fluctuations in an induced voltage |
US5793199A (en) * | 1995-11-10 | 1998-08-11 | New Cosmos Electric Co., Ltd. | Method and apparatus for determining magnetic powder concentration by using the electromagnetic induction method |
US6437563B1 (en) * | 1997-11-21 | 2002-08-20 | Quantum Design, Inc. | Method and apparatus for making measurements of accumulations of magnetically susceptible particles combined with analytes |
CA2342023C (en) * | 2000-04-10 | 2007-07-03 | Randox Laboratories Ltd. | Paramagnetic particle detection |
FI113297B (fi) | 2001-06-19 | 2004-03-31 | Magnasense Oy | Menetelmä ja laitteisto analyyttien kvalitatiiviseksi ja kvantitatiiviseksi osoittamiseksi |
US20030076087A1 (en) * | 2001-08-31 | 2003-04-24 | Imego Ab | Method and arrangement relating to substance analysis |
EP1421382B1 (en) * | 2001-08-31 | 2012-08-15 | Imego Ab | Methdo and arrangement for analyzing substances |
JP2005513475A (ja) * | 2001-12-21 | 2005-05-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | マイクロアレイ上の磁気ナノ粒子の領域密度を測定するセンサー及び方法 |
SE524168C2 (sv) * | 2002-03-08 | 2004-07-06 | Lifeassays Ab | Driftkompenserad magnetisk permeabilitetsdetektor |
GB0410976D0 (en) | 2004-05-17 | 2004-06-16 | Randox Lab Ltd | Magnetic particle detector system |
GB0410980D0 (en) | 2004-05-17 | 2004-06-16 | Randox Lab Ltd | Magnetic particle detector system and method of performing binding assay |
-
2006
- 2006-07-27 FI FI20065502A patent/FI121248B/fi not_active IP Right Cessation
-
2007
- 2007-04-20 WO PCT/FI2007/050211 patent/WO2007122293A1/en active Application Filing
- 2007-04-20 JP JP2009505923A patent/JP5128581B2/ja active Active
- 2007-04-20 CA CA2646107A patent/CA2646107C/en active Active
- 2007-04-20 EP EP07730698.3A patent/EP2016401B1/en active Active
- 2007-04-20 ES ES07730698.3T patent/ES2675046T3/es active Active
- 2007-04-20 DK DK07730698.3T patent/DK2016401T3/da active
- 2007-04-20 MX MX2008013596A patent/MX2008013596A/es active IP Right Grant
- 2007-04-20 AU AU2007242719A patent/AU2007242719B2/en active Active
- 2007-04-20 US US12/226,112 patent/US8026716B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
FI20065502A (fi) | 2007-10-22 |
AU2007242719A1 (en) | 2007-11-01 |
WO2007122293A1 (en) | 2007-11-01 |
US20090243603A1 (en) | 2009-10-01 |
JP2009534641A (ja) | 2009-09-24 |
CA2646107C (en) | 2016-08-30 |
FI121248B (fi) | 2010-08-31 |
MX2008013596A (es) | 2009-01-19 |
CA2646107A1 (en) | 2007-11-01 |
ES2675046T3 (es) | 2018-07-06 |
EP2016401A4 (en) | 2014-09-10 |
JP5128581B2 (ja) | 2013-01-23 |
AU2007242719B2 (en) | 2012-08-16 |
EP2016401A1 (en) | 2009-01-21 |
US8026716B2 (en) | 2011-09-27 |
EP2016401B1 (en) | 2018-04-04 |
FI20065502A0 (fi) | 2006-07-27 |
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