WO2001038482A1 - Dispositif d'hybridation, kit, support et agent de marquage - Google Patents
Dispositif d'hybridation, kit, support et agent de marquage Download PDFInfo
- Publication number
- WO2001038482A1 WO2001038482A1 PCT/JP2000/008049 JP0008049W WO0138482A1 WO 2001038482 A1 WO2001038482 A1 WO 2001038482A1 JP 0008049 W JP0008049 W JP 0008049W WO 0138482 A1 WO0138482 A1 WO 0138482A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- case
- support
- reaction
- hybridization
- hybridization reaction
- Prior art date
Links
Classifications
-
- 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
- G01N21/76—Chemiluminescence; Bioluminescence
-
- 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
- G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
- G01N21/67—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges
-
- 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
- G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
- G01N21/69—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence specially adapted for fluids, e.g. molten metal
Definitions
- the present invention relates to a hybridization device, a case for performing a hybridization reaction in the device, a support for performing a hybridization reaction in the case, and a hybridization device. It relates to a labeling reagent for labeling a biological substance.
- a probe is immobilized on a support made of glass plate, which is an insulator, and a hybridization reaction solution containing a fluorescently labeled sample is dropped on the probe, and a cover glass is placed on the probe. It has been performed by leaving it in a thermostat for a certain period of time. Then, the support is removed from the thermostatic bath, the support is washed with a washing solution, the fluorescent substance used for labeling is excited by a detector, and the fluorescence is read, thereby forming a probe and a hybrid. Can be identified.
- Each of the above-mentioned probe and sample is a biological substance, specifically, DNA or RNA. It may be a hybridization of DNA and RNA.
- a sample is immobilized on a support, and a hybridization reaction is performed with a fluorescently labeled probe in a hybridization reaction solution.
- a hybridization reaction is performed with a fluorescently labeled probe in a hybridization reaction solution.
- Performing the hybridization reaction by the conventional method described above required a long time, such as a reaction time of 6 to 7 hours. For this reason, it is usual to arrange a number of expensive pre-hydidization devices side by side and perform many high-predication reactions concurrently, and secure a large installation space for that. I had to.
- An object of the present invention is to increase the efficiency of the hybridization reaction, shorten the reaction time, and further enhance the detection sensitivity, and further provide a hybridization device, a case, a support, and the like. And a labeling reagent. Disclosure of the invention
- the support of the present invention has a metal that supplies an electric charge to the high predidation reaction solution. As a result, a charge can be supplied to the reaction solution, and the biological substance in the hybridization reaction solution can be drawn to the support side.
- an electrochemiluminescent substance can be used as a labeling reagent.
- the biological substance is fixed to the support, it can be used directly for diagnosis of a specific disease, for example.
- the case of the present invention has an electrode for supplying a charge to the hybridization reaction solution.
- the case accommodates the support, the case can be directly used for diagnosis of a specific disease or the like as described above.
- the hybridization device of the present invention supplies electricity for supplying a charge to a reaction solution to a case for a hybridization reaction.
- the labeling reagent of the present invention comprises an electrochemiluminescent substance for labeling a biological substance.
- FIG. 1 is a perspective view showing a configuration of a case used for a high predidation reaction according to one embodiment of the present invention.
- FIG. 2 is a diagram showing a configuration of a hybridization device according to an embodiment of the present invention.
- FIG. 3 is a diagram illustrating a hybridization reaction according to one embodiment of the present invention.
- FIG. 4 is a diagram illustrating the structure of a sample DNA into which a ruthenium complex has been introduced according to an embodiment of the present invention.
- FIG. 5 is a diagram illustrating electrochemiluminescence according to one embodiment of the present invention.
- Figure 6 is a diagram illustrating the reaction of ruthenium complex with TPA on a metal support (part 1).
- Figure 7 illustrates the reaction of ruthenium complex with TPA on a metal support (part 2).
- FIG. 1 is a perspective view showing a configuration of a case used for a hybridization reaction according to one embodiment of the present invention.
- the case 1 includes a metal support 2, a counter electrode 2a, a counter electrode 2b, a cap 3, and an inlet 23.
- Case 1 is transparent to allow the reaction results to be detected optically. Therefore, it is preferable to use an acrylic resin because of its high chemical resistance.
- the metal support 2 is fixed at the center of the lower inside, and the counter electrode 2a and the counter electrode 2b are fixed at the upper position on both sides of the metal support 2, so that the counter electrode 2a and the counter electrode Make sure that electrode 2b is not obstructed.
- the metal support 2 is, for example, 25 ⁇ 75 ⁇ 2 mm 3, and the probe DNA is immobilized thereon. For this reason, the metal support 2 is required to have a uniform surface, and furthermore, to have stability as an electrode. Therefore, in this embodiment, platinum-coated titanium was used.
- the counter electrode 2a and the counter electrode 2b are not transparent, they must be located at positions where they do not hinder detection by the cooled CCD. If the counter electrode 2a and the counter electrode 2b are formed of transparent electrodes, one electrode of the same size as the metal support 2 should be fixed above the metal support 2. Good,
- FIG. 2 is a diagram showing a configuration of a high pre-diagnosis device according to an embodiment of the present invention.
- the Peltier 4 is also connected to the computer 13 so that the reaction temperature can be adjusted.
- the power switch 5 turns the metal support 2 on the positive side and the metal support 2 and the counter electrode 2a.
- An electric field is applied to the reaction solution by applying a voltage between the reaction solution and 2b to cause a hybridization reaction.
- the power switch 5 is connected to the computer 13 and can be controlled by the computer 13.
- the voltage applied for this hybridization reaction is about 100 V.
- the hybridization reaction solution in the case 1 is discharged into the drainage reservoir 8 through the discharge tube 6 by the pump 14.
- unreacted sample DNA 16 (see Fig. 3) Is discharged together with the hybridization reaction solution.
- the cleaning solution is injected into the case 1 via the cleaning solution reservoir 9 and the injection tube 7, and similarly discharged to the drainage reservoir 8.
- the cleaning solution is 0.2XSSC / 0.1 ° /. SDS solution was used.
- TPA Tripropylamine
- FIG. 3 is a diagram illustrating a hybridization reaction according to the embodiment of the present invention.
- the uniformly charged (negative) sample DNA 16 becomes + (plus) in case 1.
- the metal support 2 is attracted to the negatively charged metal support 2, which increases the chance of reaction with the probe DNA on the metal support 2 and increases the reaction efficiency. This makes it possible to shorten the time of the rehybridization reaction.
- FIG. 4 is a diagram illustrating the structure of sample DNA 16 into which ruthenium complex 18 has been introduced according to the embodiment of the present invention.
- the sample DNA 16 of the hybridization reaction solution is modified with an electrochemiluminescent substance.
- the device uses ruthenium complex 18 as the luminescent material and tripropylamine (TPA) 17 as the electron donor, enabling detection by electrochemiluminescence.
- TPA tripropylamine
- streptavidin 20 is bound to NHS ester 19.
- the sample DNA 22 is lybiotinylated with biotin 21.
- the ruthenium complex 18 can be introduced into the sample 22 by the streptavidin-biotin bond.
- the sample DNA 22 can be biotinylated using a commercially available biotinylated kit from Pierce and several other companies.
- FIG. 5 is a diagram illustrating electrochemiluminescence according to the embodiment of the present invention.
- the ruthenium complex 18 previously modified to the sample DNA 22 reacts with the TPA 17 to emit light.
- FIG. 6 and 7 are diagrams for explaining the reaction between ruthenium complex 18 and TPA 17 on metal support 2.
- FIG. TP A 17 first emits one electron on the electrode plate, and then becomes a cation radical (TP A + *). Cation radicals are very unstable and emit protons (H +) to become radicals, but they are still unstable, so they react with Ru 3+ and emit one electron.
- Ru 2+ emits one electron on the electrode plate to become Ru 3+, and reacts with TPA radical (TPA *) to give one electron, but is unstable as it is State (excitation state; Ru 2 + *), and emits photon (photon) to return to stable Ru 2 +.
- the metal support may be a platinum plate, a stainless plate, a titanium platinum clad, or the like, in addition to the platinum coated titanium.
- the Titanium Z platinum clad is made by placing a platinum sheet on a titanium sheet and fixing it with a bolt. Platinum coating Since tin is a material obtained by plating platinum on a titanium substrate, as a general feature of the plating, there are irregularities at the molecular level on the surface, and accordingly, the platinum plate, stainless plate, and However, it is more efficient as an electrode than titanium platinum clad.
- the metal support may be any one that is made of a good conductor by a metal, and may be, for example, a metal substrate coated with an insulating substrate such as glass.
- the metal does not need to be exposed on the surface, and even if the metal surface is coated with a thin dielectric to protect the metal from the solution, the metal support supplies the charge to the solution. Any material may be used as long as it is a good conductor due to the metal to such an extent that the ruthenium complex and TPA can react.
- the hybridization reaction can be efficiently performed in a short time.
- detection can be performed repeatedly by using an electrochemiluminescent substance for detection, and by adjusting the amount and time of electric charge supplied from the electrode, it is possible to obtain an appropriate luminescence amount according to the sample. it can.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00976258A EP1148119A4 (en) | 1999-11-25 | 2000-11-15 | HYBRIDIZING DEVICE, CONTAINER, CARRIER AND MARKING SUBSTANCE |
US09/889,990 US6482640B1 (en) | 1999-11-25 | 2000-11-15 | Hybridization device, case, support, and label agent |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33412099A JP2001153870A (ja) | 1999-11-25 | 1999-11-25 | ハイブリダイゼーション装置、ケース、支持体、及び、標識試薬 |
JP11-334120 | 1999-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001038482A1 true WO2001038482A1 (fr) | 2001-05-31 |
Family
ID=18273757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/008049 WO2001038482A1 (fr) | 1999-11-25 | 2000-11-15 | Dispositif d'hybridation, kit, support et agent de marquage |
Country Status (4)
Country | Link |
---|---|
US (1) | US6482640B1 (ja) |
EP (1) | EP1148119A4 (ja) |
JP (1) | JP2001153870A (ja) |
WO (1) | WO2001038482A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1186670A2 (en) * | 2000-09-07 | 2002-03-13 | Yokogawa Electric Corporation | Apparatus for measuring the genetic sequence of biopolymers |
US7662555B2 (en) | 2003-12-24 | 2010-02-16 | Shinichiro Isobe | Method for detecting biomolecule, labeling dye used therefore, and labeling kit |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3881667B2 (ja) | 2003-12-24 | 2007-02-14 | 信一郎 礒部 | 生体分子の検出方法及びそれに用いる標識色素並びに標識キット |
JP2009042104A (ja) * | 2007-08-09 | 2009-02-26 | Canon Inc | 物質固定装置、物質検出装置および物質固定方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993010267A1 (en) * | 1991-11-15 | 1993-05-27 | Igen, Inc. | Rapid assays for amplification products |
JPH08154656A (ja) * | 1994-12-05 | 1996-06-18 | Nikon Corp | 核酸ハイブリダイゼーション試験の方法、核酸ハイブリダイゼーション試験用基材および核酸ハイブリダイゼーション試験用装置 |
JPH10146183A (ja) * | 1996-09-19 | 1998-06-02 | Toshiba Corp | 電極、検出装置およびセンサ |
JPH10239240A (ja) * | 1997-02-25 | 1998-09-11 | Hitachi Ltd | 自動dnaプローブ装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5605662A (en) * | 1993-11-01 | 1997-02-25 | Nanogen, Inc. | Active programmable electronic devices for molecular biological analysis and diagnostics |
US5632957A (en) * | 1993-11-01 | 1997-05-27 | Nanogen | Molecular biological diagnostic systems including electrodes |
HUP9801679A3 (en) * | 1995-03-10 | 2001-01-29 | Meso Scale Technologies Llc Co | Process and agent for multi-array, multi-specific electrochemiluminescence testing |
KR100348786B1 (ko) * | 1999-10-01 | 2002-08-17 | 엘지전자주식회사 | 핵산검출방법, 및 핵산검출기와 이의 제조방법 |
-
1999
- 1999-11-25 JP JP33412099A patent/JP2001153870A/ja active Pending
-
2000
- 2000-11-15 EP EP00976258A patent/EP1148119A4/en not_active Withdrawn
- 2000-11-15 WO PCT/JP2000/008049 patent/WO2001038482A1/ja active Application Filing
- 2000-11-15 US US09/889,990 patent/US6482640B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993010267A1 (en) * | 1991-11-15 | 1993-05-27 | Igen, Inc. | Rapid assays for amplification products |
JPH08154656A (ja) * | 1994-12-05 | 1996-06-18 | Nikon Corp | 核酸ハイブリダイゼーション試験の方法、核酸ハイブリダイゼーション試験用基材および核酸ハイブリダイゼーション試験用装置 |
JPH10146183A (ja) * | 1996-09-19 | 1998-06-02 | Toshiba Corp | 電極、検出装置およびセンサ |
JPH10239240A (ja) * | 1997-02-25 | 1998-09-11 | Hitachi Ltd | 自動dnaプローブ装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1148119A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1186670A2 (en) * | 2000-09-07 | 2002-03-13 | Yokogawa Electric Corporation | Apparatus for measuring the genetic sequence of biopolymers |
EP1186670A3 (en) * | 2000-09-07 | 2003-10-01 | Yokogawa Electric Corporation | Apparatus for measuring the genetic sequence of biopolymers |
US7125710B2 (en) | 2000-09-07 | 2006-10-24 | Yokogawa Electric Corporation | Apparatus for measuring the genetic sequence of biopolymers |
US7662555B2 (en) | 2003-12-24 | 2010-02-16 | Shinichiro Isobe | Method for detecting biomolecule, labeling dye used therefore, and labeling kit |
Also Published As
Publication number | Publication date |
---|---|
EP1148119A4 (en) | 2004-09-01 |
JP2001153870A (ja) | 2001-06-08 |
US6482640B1 (en) | 2002-11-19 |
EP1148119A1 (en) | 2001-10-24 |
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