CN111812330A - Kit for D-dimer detection - Google Patents

Kit for D-dimer detection Download PDF

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Publication number
CN111812330A
CN111812330A CN202010579300.5A CN202010579300A CN111812330A CN 111812330 A CN111812330 A CN 111812330A CN 202010579300 A CN202010579300 A CN 202010579300A CN 111812330 A CN111812330 A CN 111812330A
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dimer
solution
reaction tube
cleaning
time
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CN202010579300.5A
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熊晶
余占江
陈永强
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Jiangsu Aoya Biological Technology Co ltd
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Jiangsu Aoya Biological Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/68Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
    • G01N33/6893Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids related to diseases not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/577Immunoassay; Biospecific binding assay; Materials therefor involving monoclonal antibodies binding reaction mechanisms characterised by the use of monoclonal antibodies; monoclonal antibodies per se are classified with their corresponding antigens
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/58Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2800/00Detection or diagnosis of diseases
    • G01N2800/22Haematology
    • G01N2800/226Thrombotic disorders, i.e. thrombo-embolism irrespective of location/organ involved, e.g. renal vein thrombosis, venous thrombosis
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2800/00Detection or diagnosis of diseases
    • G01N2800/52Predicting or monitoring the response to treatment, e.g. for selection of therapy based on assay results in personalised medicine; Prognosis

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Cell Biology (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Microbiology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

The invention provides a kit for detecting a D-dimer, and particularly relates to the field of D-dimer detection; comprises compound enzyme liquid, coupling liquid, protective liquid, biotin-labeled D-dimer monoclonal antibody, chemiluminescent substrate, standard substance diluent, washing liquid and a reaction tube; adding 40 microliters of coupling solution into each hole of the reaction tube, incubating for 25min at room temperature, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10min each time; adding 150 microliters of biotin-labeled D-dimer monoclonal antibody into each hole of the reaction tube, wherein the coupling temperature is 30 ℃ and the coupling time is 2 hours, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10 minutes each time; then adding 80 microliter of protective solution into each hole of the reaction tube, and airing at a ventilated position; the invention can improve the efficiency and sensitivity of detection.

Description

Kit for D-dimer detection
Technical Field
The invention belongs to the field of D-dimer detection, and particularly relates to a kit for detecting D-dimer.
Background
Fibrin exists in blood, and fibrin is activated and hydrolyzed to generate specific degradation products, which are called fibrin degradation products. D-dimer is the simplest fibrin degradation product, and an elevated level of D-dimer indicates the presence of hypercoagulable state and secondary hyperfibrinolysis in vivo. The dynamic balance between the blood coagulation system and the fibrinolysis system in the normal human body is kept, so that the blood circulation can be normally carried out. The fibrinolytic system plays an important role in maintaining normal permeability of the vascular wall, maintaining the flow state of blood, and tissue repair, while the coagulation system forms a thrombus to prevent blood loss from the damaged blood vessel in the case of trauma or damage to the blood vessel. However, in pathological conditions, when the body coagulates blood, thrombin acts on fibrin and is converted into cross-linked fibrin (thrombosis), and the fibrinolytic system is activated (thrombolysis), degrading fibrin to form various fragments, and D-dimer is one of fibrin degradation products. Therefore, the mass concentration of the D-dimer has important significance for the diagnosis, the curative effect evaluation and the prognosis judgment of the thrombotic diseases. However, the sensitivity and detection efficiency of the existing dimer detection still need to be further improved.
Disclosure of Invention
The invention aims to provide a kit for detecting D-dimer, which can improve the detection efficiency and sensitivity.
The invention provides the following technical scheme:
a kit for detecting D-dimer comprises complex enzyme liquid, coupling liquid, protective liquid, biotin-labeled D-dimer monoclonal antibody, chemiluminescent substrate, standard substance diluent, washing liquid and a reaction tube; adding 40 microliters of coupling solution into each hole of the reaction tube, incubating for 25min at room temperature, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10min each time; adding 150 microliters of biotin-labeled D-dimer monoclonal antibody into each hole of the reaction tube, wherein the coupling temperature is 30 ℃ and the coupling time is 2 hours, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10 minutes each time; and then adding 80 microliter of protective solution into each hole of the reaction tube, and airing at a ventilated place.
Preferably, the biotin-labeled D-dimer monoclonal antibody is composed of 10 mmol/l of a phosphate buffer solution with pH 7.0, 2.0 μ g/mL of a D-dimer antibody, 0.03 mass% of laureth, 1.2 mass% of sucrose, 0.5 mass% of glycerol, and 0.02 mass% of a silica matting agent.
Preferably, 2.0. mu.g/mL of D-dimer antibody is added with 60 microliters of compound enzyme solution through the D-dimer antibody, wherein the enzyme digestion temperature is 38 ℃, and the enzyme digestion process time is 3 hours.
Preferably, the cleaning solution consists of 20 ml of phosphate buffer solution with pH 7.0 and 0.03% of sorbitan monooleate polyoxyethylene ether by mass fraction.
Preferably, the compound enzyme solution consists of trypsin and bromelain, and the mass ratio of the trypsin to the bromelain is 0.6: 0.09.
Preferably, the coupling solution is 2 millimoles per liter of alcoholic solution of N, N' -carbonyldiimidazole; the protective solution adopts 55% of glycerol-phosphate buffer solution by mass fraction.
The invention has the beneficial effects that:
adding 40 microliters of coupling solution into each hole of a reaction tube, incubating for 25min at room temperature, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10min each time; adding 150 microliters of biotin-labeled D-dimer monoclonal antibody into each hole of the reaction tube, wherein the coupling temperature is 30 ℃ and the coupling time is 2 hours, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10 minutes each time; then adding 80 microliter of protective solution into each hole of the reaction tube, and airing at a ventilated place; the product has high sensitivity, convenient and simple operation, short operation time, low cost, high resistance and strong anti-interference capability, and does not need instruments with high value.
Detailed Description
A kit for detecting D-dimer comprises complex enzyme liquid, coupling liquid, protective liquid, biotin-labeled D-dimer monoclonal antibody, chemiluminescent substrate, standard substance diluent, washing liquid and a reaction tube; adding 40 microliters of coupling solution into each hole of the reaction tube, incubating for 25min at room temperature, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10min each time; adding 150 microliters of biotin-labeled D-dimer monoclonal antibody into each hole of the reaction tube, wherein the coupling temperature is 30 ℃ and the coupling time is 2 hours, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10 minutes each time; then adding 80 microliter of protective solution into each hole of the reaction tube, and airing at a ventilated position;
example 2:
a kit for detecting D-dimer, wherein the biotin-labeled D-dimer monoclonal antibody consists of 10 millimoles per liter of phosphate buffer solution with the pH value of 7.0, 2.0 mu g/mL of D-dimer antibody, 0.03 mass percent of lauryl alcohol polyoxyethylene ether, 1.2 mass percent of cane sugar, 0.5 mass percent of glycerin and 0.02 mass percent of silica matting agent; adding 2.0 mu g/mL of D-dimer antibody into 60 microliters of compound enzyme solution through the D-dimer antibody, wherein the enzyme digestion temperature is 38 ℃, and the enzyme digestion process time is 3 hours; adding 40 microliters of coupling solution into each hole of the reaction tube, incubating for 25min at room temperature, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10min each time; adding 150 microliters of biotin-labeled D-dimer monoclonal antibody into each hole of the reaction tube, wherein the coupling temperature is 30 ℃ and the coupling time is 2 hours, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10 minutes each time; then adding 80 microliter of protective solution into each hole of the reaction tube, and airing at a ventilated position;
example 3:
a kit for detecting D-dimer, which comprises biotin-labeled D-dimer monoclonal antibody, a probe and a probe, wherein the biotin-labeled D-dimer monoclonal antibody consists of 10 millimoles per liter of phosphate buffer solution with the pH value of 7.0, 2.0 mu g/mL of D-dimer antibody, 0.03 mass percent of lauryl alcohol polyoxyethylene ether, 1.2 mass percent of cane sugar, 0.5 mass percent of glycerin and 0.02 mass percent of silicon dioxide delustering agent; adding 2.0 mu g/mL of D-dimer antibody into 60 microliters of compound enzyme solution through the D-dimer antibody, wherein the enzyme digestion temperature is 38 ℃, and the enzyme digestion process time is 3 hours; the cleaning solution consists of 20 ml of phosphate buffer solution with the pH value of 7.0 and 0.03 percent of sorbitan monooleate polyoxyethylene ether; the compound enzyme solution consists of trypsin and bromelain, and the mass ratio of the trypsin to the bromelain is 0.6: 0.09; the coupling solution is 2 millimoles per liter of alcohol solution of N, N' -carbonyldiimidazole; the protective solution adopts 55 mass percent of glycerol-phosphate buffer solution; adding 40 microliters of coupling solution into each hole of the reaction tube, incubating for 25min at room temperature, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10min each time; adding 150 microliters of biotin-labeled D-dimer monoclonal antibody into each hole of the reaction tube, coupling at 30 ℃ for 2 hours, and washing the reaction tube for 5 times by using 20 milliliters of phosphate buffer solution with the pH value of 7.0 and sorbitan monooleate polyoxyethylene ether with the mass fraction of 0.03 percent, wherein the washing time is 10 minutes each time; adding 80 microliters of glycerol-phosphate buffer solution with the mass fraction of 55% into each hole of the reaction tube, and airing at a ventilated place;
although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A kit for D-dimer detection, characterized in that: comprises compound enzyme liquid, coupling liquid, protective liquid, biotin-labeled D-dimer monoclonal antibody, chemiluminescent substrate, standard substance diluent, washing liquid and a reaction tube; adding 40 microliters of coupling solution into each hole of the reaction tube, incubating for 25min at room temperature, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10min each time; adding 150 microliters of biotin-labeled D-dimer monoclonal antibody into each hole of the reaction tube, wherein the coupling temperature is 30 ℃ and the coupling time is 2 hours, and cleaning the reaction tube for 5 times by using cleaning solution, wherein the cleaning time is 10 minutes each time; and then adding 80 microliter of protective solution into each hole of the reaction tube, and airing at a ventilated place.
2. A kit for D-dimer detection according to claim 1, characterized in that: the biotin-labeled D-dimer monoclonal antibody was composed of 10 mmol/l of a phosphate buffer solution having a pH of 7.0, 2.0 μ g/mL of a D-dimer antibody, 0.03% by mass of laureth, 1.2% by mass of sucrose, 0.5% by mass of glycerol, and 0.02% by mass of a silica matting agent.
3. A kit for D-dimer detection according to claim 1, characterized in that: adding 60 microliters of compound enzyme liquid into 2.0 micrograms/mL of D-dimer antibody through the D-dimer antibody, wherein the enzyme digestion temperature is 38 ℃, and the enzyme digestion process time is 3 hours.
4. A kit for D-dimer detection according to claim 1, characterized in that: the cleaning solution consists of 20 ml of phosphate buffer solution with the pH value of 7.0 and 0.03 percent of sorbitan monooleate polyoxyethylene ether by mass fraction.
5. A kit for D-dimer detection according to claim 1, characterized in that: the compound enzyme solution consists of trypsin and bromelain, and the mass ratio of the trypsin to the bromelain is 0.6: 0.09.
6. A kit for D-dimer detection according to claim 1, characterized in that: the coupling solution is 2 millimoles per liter of alcohol solution of N, N' -carbonyldiimidazole; the protective solution adopts 55% of glycerol-phosphate buffer solution by mass fraction.
CN202010579300.5A 2020-06-23 2020-06-23 Kit for D-dimer detection Pending CN111812330A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107247138A (en) * 2017-07-21 2017-10-13 王贤俊 The method for coating of Chemiluminescent plate in a kind of measure D dimer contents
CN107462732A (en) * 2017-07-21 2017-12-12 王贤俊 The method for coating of Chemiluminescent plate in a kind of measure saccharification hemoglobin content
CN109444412A (en) * 2018-10-26 2019-03-08 成都普利泰生物科技有限公司 A kind of pet d-dimer detection kit for very small chemical luminescence immunoassay system
WO2019184248A1 (en) * 2018-03-27 2019-10-03 苏州长光华医生物医学工程有限公司 Adamantane chemiluminescence kit for detecting force growth factor and e-peptide thereof, and preparation method
CN111007250A (en) * 2019-12-10 2020-04-14 江苏三联生物工程有限公司 Electrochemiluminescence kit for detecting TAT (thrombin-antithrombin complex) and preparation method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107247138A (en) * 2017-07-21 2017-10-13 王贤俊 The method for coating of Chemiluminescent plate in a kind of measure D dimer contents
CN107462732A (en) * 2017-07-21 2017-12-12 王贤俊 The method for coating of Chemiluminescent plate in a kind of measure saccharification hemoglobin content
WO2019184248A1 (en) * 2018-03-27 2019-10-03 苏州长光华医生物医学工程有限公司 Adamantane chemiluminescence kit for detecting force growth factor and e-peptide thereof, and preparation method
CN109444412A (en) * 2018-10-26 2019-03-08 成都普利泰生物科技有限公司 A kind of pet d-dimer detection kit for very small chemical luminescence immunoassay system
CN111007250A (en) * 2019-12-10 2020-04-14 江苏三联生物工程有限公司 Electrochemiluminescence kit for detecting TAT (thrombin-antithrombin complex) and preparation method

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