CN103941013A - Rapid detection test strip for actinobacillus pleuropneumoniae endotoxin - Google Patents
Rapid detection test strip for actinobacillus pleuropneumoniae endotoxin Download PDFInfo
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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
- G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
- G01N33/56911—Bacteria
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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
- G01N33/558—Immunoassay; Biospecific binding assay; Materials therefor using diffusion or migration of antigen or antibody
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- 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
- G01N2333/195—Assays involving biological materials from specific organisms or of a specific nature from bacteria
- G01N2333/30—Assays involving biological materials from specific organisms or of a specific nature from bacteria from Mycoplasmatales, e.g. Pleuropneumonia-like organisms [PPLO]
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Abstract
The invention relates to an actinobacillus pleuropneumoniae endotoxin detection reagent displaying appliance, and especially relates to a rapid detection test strip for actinobacillus pleuropneumoniae endotoxin (ApxIV). The test strip contains a support layer and a reaction reagent carrier adsorption layer; the support layer is a water-nonabsorbent thin strip, and the reaction reagent carrier adsorption layer is pasted on the support layer; the test strip successively comprises a fibrous layer, an ApxIV gold-labeled monoclonal-antibody or polyclonal-antibody fibrous layer and a cellulose membrane layer from the sample test end, and the handle end is a water-absorption material layer; an ApxIV paired monoclonal antibody or polyclonal antibody or monoclonal antibody solution is sprayed on the fibrous layer for obtaining a detection trace '|', '/' or '\'; and a goat (rabbit) anti-mouse or anti-pig IgG polyclonal antibody or a SPA solution is sprayed on the cellulose membrane layer for obtaining a contrast trace '|', '/' or '\'. The detection test strip is specific, sensitive, intuitionistic, accurate, convenient and rapid, and can be popularized and applied in departments relevant to livestock and poultry breeding, meat packing and quarantine and the like.
Description
one, technical field
The present invention is the detection reagent displaying appliance that one relates to actinobacillus pleuropneumoniae endotoxin (ApxIV), particularly relates to one and can detect the test strip of actinobacillus pleuropneumoniae endotoxin (ApxIV).
two, technical background
Pig pleuropneumonia is the breathing problem of a kind of acute, hot, the hyperinfection of the pig that caused by actinobacillus pleuropneumoniae (APP).Actinobacillus pleuropneumoniae is the member of Pasteurella section Actinobacillus, is the little coccobacillus of a kind of Gram-negative, and being of having is very thin shaft-like or thread, shows as multiform state property and the two poles of the earth coloring.There is pod membrane, have pili, without gemma.Clinically taking acute hemorrhagic fiber disposition pleuropneumonia and chronic fiber disposition gangrenosum acne pleuropneumonia as feature.This disease is distributed in world many countries and area, is a kind of worldwide disease, is at present the fashion trend of rising.China, in this disease of alleged occurrence in 1987, causes great economic loss to large scale of pig farm field.The variation of weather and the arriving of autumn and winter season easily cause the generation of this disease and popular, should attract great attention, and take effective measures, and avoid the generation of this disease cold season and popular.
The pig that carries disease germs of sick pig, subclinical infection is that the sow of the main infection sources, particularly subclinical infection of this disease is the main reservoir host of cause of disease, in the propagation of this bacterium, plays an important role.Although this disease can not infect piglet by vertical transmission, can, by directly contacting through respiratory tract infection, have influence on the safety of piglet.By air borne, can pass to another pig house from a morbidity pig house great-jump-forward.Also can by contact by the vehicle of pathogen contamination, instrument, apparatus and keeper flow etc. infect indirectly.Rodent and birds also can be propagated this disease.The pig of various ages, sex has neurological susceptibility, wherein more with the pig morbidity in 6~16 week age, the highest with the pig incidence of disease at 3 monthly ages, can reach 80%~100%, and mortality ratio is generally 50%.
Pig pleuropneumonia is one of principal disease of current harm countries in the world pig industry.At present APP finds that there is 15 kinds of serotypes altogether, and the popular advantage serotype of every country is different.Between different serotypes and the virulence of the different strains of same serotype all there are differences, pathogenic also have power point, thereby cause this disease diagnosis and treatment very difficult.Research in recent years shows, the factor relevant to pathogen virulence has toxin, pod membrane, outer membrane protein, urase etc., wherein toxin is main virulence factor, also be main immunogene, can be used as diagnostic antigen and set up Serology test, can also be used for diagnosis and weigh immune state, therefore toxin study has become this sick study hotspot.APP has 4 kinds of toxin, i.e. toxin
, II,
and the toxin IV of recent findings, they all belong to RTX (Repeatsinthe structural, RTX) toxin family.In recent years find, do not have the APP of One serotype can secrete 4 kinds of toxin, but all serotype of APP can be secreted ApxlV toxin protein in infection animal body, and the bacterium of in vitro culture can not secrete this toxin simultaneously.Therefore, ApxlV toxin detected in animal body, just can prove the infection of APP, ApxlV toxin protein is being set up larger theory value and the application prospect of tool aspect diagnostic method, can be used for infection and the non-infection of difference diagnosis APP.At present the diagnostic method of above-mentioned disease is mainly contained following several.
(1) microscopy.Get nasal cavity and bronchial secretion or pulmonary lesion material smear, Gram’s staining, microexamination, as see dense gram-negative little coccobacillus or the bacillus exilis dying in polymorphic the two poles of the earth, can do further qualification.
(2) pathogen separation qualification.The aseptic pathological material of disease of getting, intersect streak inoculation with 5% Blood In Sheep agar plate and staphylococcus aureus, under 5%~10% gas concentration lwevel condition, cultivate 24 hours for 37 DEG C, around staphylococcus aureus, have satellite colony, then carry out the biochemical identification such as urase and mannose fermentation.And carry out that CAMP (CAMP) test, hemolytic are measured and the inspection such as serotype.
(3) serodiagnosis.Fluorescent antibody technics can be used for the inspection of specific antigen; Enzyme linked immunosorbent assay (ELISA) can be used for detecting antibody with complement fixation test (CFT), finds the pig of subclinical infection.Indirect hemagglutination test (IHA), the indirect hemagglutination test of APP is for detection and the somatotype of APP.Latex agglutination test is a kind of simple and rapid detection method, and it both can, for the diagnosis of APP, also can be used for somatotype.Carry out the serodiagnosis of APP with enzyme linked immunosorbent assay technology, can be divided into type specificity ELISA and species specificity ELISA.The former can only make detection to the APP of One serotype, and the latter can make detection to the APP of all serotypes.
(4) PCR (PCR) technology: round pcr has the advantage such as high sensitivity, high specific, and multiple PCR method has been widely used in the qualification of APP or ApxIV and epidemiology survey.
Above-mentioned detection method needs professional in laboratory operation, complex operation, and detection is wasted time and energy; And need expensive instrument and equipment, as PCR instrument, microplate reader etc., for layman, above-mentioned detection method has been difficult to.Although the special sensitivity of said method, cannot realize field quick detection or diagnosis.The present invention, research a kind of easy fast, real-time online Test paper, to controlling and to eliminate this disease significant.
three, summary of the invention
The object of the invention is the shortcoming that detects the existence of swine disease cause of disease in prior art in order to overcome, provide a kind of special, responsive, easy fast detecting actinobacillus pleuropneumoniae endotoxic method, develop the test strip that detects actinobacillus pleuropneumoniae endotoxin (ApxIV).
Technical scheme of the present invention is: the test strip that a kind of actinobacillus pleuropneumoniae endotoxin (ApxIV) is provided, this test strips contains supporting layer and adsorbed layer, supporting layer is the lamella not absorbing water, adsorbed layer is attached on supporting layer, adsorbed layer is followed successively by the absorbent material layer of sample adsorbing fiber layer, golden labeling antibody fibrage, cellulose rete and handle end from test lead, be provided with and detect trace and contrast trace on cellulose rete; The absorption of gold labeling antibody fibrage has the monoclonal antibody of the anti-ApxIV of nanometer grade gold particle marker, detects the pairing monoclonal antibody of the anti-ApxIV of trace and prints, the polyclonal antibody of sheep or the anti-mouse IgG of rabbit for contrast trace; Or golden labeling antibody fibrage absorption has the polyclonal antibody of the anti-ApxIV of nanometer grade gold particle marker, the monoclonal antibody preparation of anti-ApxIV for detection trace, contrast staphylococcal protein A (SPA) or how anti-preparation of anti-pig IgG for trace.
Detecting the pairing monoclonal antibody preparation of the anti-ApxIV of trace prepares with the pairing monoclonal antibody solution of ApxIV; The polyclonal antibody preparation that detects the anti-ApxIV of trace is the polyclonal antibody preparation with ApxIV.
Supporting layer is made with the hard plastic slip or the cardboard bar that do not absorb water; Test lead sample adsorbing fiber layer is made with glass wool; Gold labeling antibody fibrage is made with glass wool and golden labeling antibody, and golden labeling antibody can be monoclonal antibody or polyclonal antibody.
Cellulose rete is made with nitrocellulose filter or pure cellulose film or carboxylation cellulose membrane or polyvinylidene fluoride PVDF cellulose membrane.
Absorbent material layer is made with thieving paper.
Detect trace and contrast trace is orthoscopic or oblique line formula, on cellulose rete, contain one and detect trace and one contrast trace, the spread pattern that detects trace and contrast trace be "
||", "
//", "
?" in any.
Above test strips adsorbed layer, contain layer protective layer; protective seam is attached on adsorbed layer; on test lead sample adsorbing fiber layer, golden labeling antibody fibrage and absorbent material layer, be coated with diaphragm; on the test lead sample adsorbing fiber layer diaphragm corresponding with golden labeling antibody fibrage intersection, be printed with sample mark line, this mark line deflection test lead sample adsorbing fiber layer one about 0.5cm place of side place.
As required, select above-mentioned golden labeling antibody fibrage, detect a kind of form in trace and contrast trace spread pattern.
Positive beneficial effect of the present invention:
1. detection specificity is strong, susceptibility is high: test strip of the present invention is made as basis taking nanometer grade gold particle marker high-affinity monoclonal antibody specific or specific polyclonal antibody, in gold labeling antibody, between gold grain and antibody molecule, form without covalent bond, the two combines by the Van der Waals force between the charges of different polarity, gold grain does not affect specificity and the adhesion of monoclonal antibody or polyclonal antibody, and has higher mark rate.Test strip of the present invention has higher specificity and susceptibility, nanogram level actinobacillus pleuropneumoniae endotoxin can be detected.
2. easy and simple to handle, quick: to use when ELISA test strip of the present invention without additional any Other Instruments and reagent, its test lead need be inserted in sample liquid to be checked about 30 seconds, then in 1-5 minute, can judge testing result.
3. testing result is directly perceived, accurate: whether test strips of the present invention is to show that henna detection line and control line are as the foundation of judging positive and negative findings, only show a brownish red control line C at the control line marking place of cellulose membrane, and show without brownish red band at detection line marking place, represent the negative result of detected ApxIV; Control line marking place at cellulose membrane shows a brownish red control line C, detecting a brownish red band T of trace place demonstration, represents the positive result of detected ApxIV.No matter positive findings or negative findings control line C all should show, in the time that control line C does not show, illustrate that test strips lost efficacy.
4. testing cost reduces: use test strip of the present invention, do not need Other Instruments and reagent, saved instrument, equipment and additive reagent expense; Layman is real-time online detection at any time also, without paying expert diagnosis Laboratory Fee and correlative charges thereof, can reduce greatly the input of testing cost, reduces testing cost.
5. usable range is wide: test strip of the present invention is simple to operate, i.e. " foolproof " operation, and easy to carry, easily preservation, can meet the not needs of commensurate and different levels personnel, comprise that professional chemical examination, customs quarantine control, health and epidemic prevention, quality monitoring, livestock products processing, intensive culture arrive individual cultivation etc., have wide market outlook and social benefit.
four, brief description of the drawings:
The side-looking structural representation of the test strip of a kind of actinobacillus pleuropneumoniae endotoxin of Fig. 1 (ApxIV)
The plan structure schematic diagram of the test strip of a kind of actinobacillus pleuropneumoniae endotoxin of Fig. 2 (ApxIV)
five, embodiment:
Following examples only, in order to further illustrate the present invention, do not limit content of the present invention.The preparation of the test strip of actinobacillus pleuropneumoniae endotoxin (ApxIV), need to prepare monoclonal antibody and the polyclonal antibody of anti-ApxIV, for the preparation of detecting trace and golden labeling antibody fibrage; Need to prepare sheep or rabbit anti-mouse igg antibody, the anti-pig IgG antibody of sheep or rabbit, for the preparation of contrast trace simultaneously.
1. the preparation of the anti-mouse of sheep (rabbit) or anti-pig IgG antibody:
Extract the IgG in mouse or pig serum with saturated ammonium sulfate method, get 1 part of serum and add 2 parts of PBS liquid (pH 7.2) and mix, add equal-volume saturated ammonium sulfate liquid and mix, put 2h in 4 DEG C of refrigerators, at 4 DEG C, the centrifugal 15min of 10000r/min, abandon supernatant; With appropriate PBS liquid (pH7.2) dissolution precipitation, adding saturated ammonium sulfate liquid to its ultimate density is 33%, put 2h in 4 DEG C of refrigerators, centrifugal 15min under 4 DEG C, 10000r/min condition, abandons supernatant, with a small amount of PBS liquid (pH7.2) dissolution precipitation, put in 4 DEG C of refrigerators with PBS liquid (pH7.2) dialyzed overnight, change liquid 2~3 times, centrifugal 15min under 4 DEG C, 10000r/min condition, collect supernatant, measure its protein concentration with ultraviolet spectrophotometer.With 50 μ g~100 μ g(IgG)/kg body weight is through subcutaneous or intramuscular injection negative antibody Healthy Sheep or rabbit 3~4 times, last immunity is after 20 days, venous blood collection, measure its serum antibody titer more than 1:2000 with ELISA, heart blood sampling or arteria carotis bloodletting, collect its hyper-immune serum, and its extracting method of IgG(that extracts the anti-mouse of sheep (rabbit) or pig with saturated ammonium sulfate method is identical with said extracted mice serum IgG, no longer repeat), for the preparation of the contrast trace of test strips of the present invention.
2. the preparation of ApxIV monoclonal antibody (Mi):
Every use 50 μ g~100 μ g ApxIV antigen immune Balb/c are mouse three times, every minor tick 15~30d; 3~4d after booster immunization for the third time, by the bloodletting of immune mouse eyeball, draws neck lethal, and with 75% alcohol-pickled 5~10min, aseptic its spleen of getting, shreds and through 100 order nylon net filters, the centrifugal 10min of 1000r/min, collects splenocyte; By 1 × 10
8individual splenocyte and 2~5 × 10
7individual NS0 myeloma cell mixes, 1000r/min is centrifugal, and 10min abandons supernatant, the centrifuge tube that contains sedimentation cell is placed in to the water of 37 DEG C, and slowly add 0.7~1ml, 40%~50% PEG4000(pH 8.5~9.0) effect 1min, then slowly add serum-free 1640 nutrient culture media 15ml, to stop the effect of PEG, 37 DEG C of water-bath 5~10min, 1000r/min is centrifugal, and 10min abandons supernatant, cell precipitation is resuspended in to HAT and selects in nutrient culture media, and add
96 well culture plates (100 μ l/ hole, μ l~200), are placed in 37 DEG C of 5% CO
2in incubator, cultivate.Cultivate after 7~10d, with the coated 96 hole ELISA Plate of pathogen specific antigen of the purifying of 5 μ g~10 μ g/ml, detect the culture supernatant of hybridoma with enzyme linked immunosorbent assay (ELISA), picking strong positive cell clone (OD
450>=0.5), carry out the limiting dilution assay cloning of continuous three times, obtain positive hybridoma cell strain, its chromosome number is 92~98, and the monoclonal antibody of its secretion can specific recognition ApxIV, and not with other toxin generation cross reaction, affinity constant reaches 10
9 ~ 10, light chain subtype is к or λ, heavy chain hypotype is IgG
1, IgG
2a, IgG
2b, IgG
3; The pairing monoclonal antibody obtaining, for making gold mark monoclonal antibody body glass wool or detecting trace.
3. the preparation of gold mark monoclonal antibody glass wool:
Utilize sodium citrate reduction method for preparing nanometer level gold grain: in 0.01~0.05% aqueous solution of chloraurate of 50~100ml boiling, add 0.5~2% citric acid three sodium solution of 2~4ml, obtain the nanometer grade gold particle of diameter 15nm left and right.With the K of 0.1mol/L
2cO
3adjust pH to 8.5~9.5 of gold grain solution, mark with 1:1000~1300 adds in the aurosol of pH8.5~9.5 than by monoclonal antibody to be marked, after mark 10min, add 20% PEG10000 to ultimate density be 0.05%, 4 DEG C, the centrifugal 20min of 1500~3000r/min, remove unconjugated gold grain particle, 4 DEG C, the centrifugal 1h of 15000r/min, abandon supernatant, obtain after golden labeling antibody potpourri, with propylene glucosan S-400 column chromatography, separation and purification gold labeling antibody, the golden labeling antibody of acquisition.By the golden labeling antibody of 1:100~500 dilution, be adsorbed in processed glass cotton 4 DEG C of low-temperature vacuum dryings, preparation gold mark monoclonal antibody glass wool.
4. the preparation of ApxIV polyclonal antibody (Ci):
The preparation of ApxIV polyclonal antibody (Ci).Adopt repeatedly immunity inoculation negative antibody health pig of ApxIV antigen.Last immunity posterior vein blood sampling in 20 days, measure its serum antibody titer more than 1:2000 with ELISA, heart blood sampling or arteria carotis bloodletting, collect its hyper-immune serum, extract IgG antibody (method is identical with the extraction of mice serum IgG, no longer repeats) in serum with saturated ammonium sulfate method.
Gold mark resists the preparation with the how anti-glass wool of gold mark more, identical with the preparation method of gold mark monoclonal antibody glass wool, no longer repeats.Refer to the content 3 in embodiment.
5. test strip of the present invention detects principle
When test strip test lead of the present invention inserts after sample solution to be checked, solution to be checked drives ApxIV to be checked to enter golden labeling antibody fibrage by siphon, and spread to handle end along nitrocellulose filter with together with golden labeling antibody (Mi or Ci) wherein, the final handle end absorbent material layer that infiltrates, in diffusion process, golden labeling antibody can be combined with corresponding ApxIV to be checked, can on cellulose membrane, be detected pairing monoclonal antibody or the how anti-interception of trace in conjunction with the ApxIV of golden labeling antibody, in the time containing tested ApxIV in sample liquid, there is a henna detection line; The anti-mouse of sheep or rabbit or anti-pig IgG can be marked monoclonal antibody or many anti-bindings with corresponding gold, occur 1 brownish red control line.In the time not containing ApxIV in sample liquid to be checked, test strips only demonstrates a brownish red control line; In the time not having control line to show on cellulose membrane, show that test strips lost efficacy.
6. the detection method of operating of test strip of the present invention
(1) detect the processing of sample: get disease pig pathological tissues, 1:1~5 add physiological saline and shred with scissors, and leachate is sample to be checked, and sick pig whole blood or serum are sample to be checked after adding the dilution of physiological saline 1:1~5.
(2) detect operation: test strip sample end of the present invention is inserted in sample liquid to be checked, and insertion depth is no more than mark line 9, after approximately 30 seconds, takes out test strips, horizontal positioned approximately 1~5 minute, simultaneously observations.
(3) result is judged: if only demonstrate a brownish red control line C on test strip cellulose membrane, represent that testing result is negative, illustrate in test sample not containing ApxIV; If there is control line C in the cellulose membrane in test strip, detect trace place and occur a detection line, represent that testing result is positive, in sample to be checked, contain ApxIV; If do not have control line C to show on cellulose membrane, show that test strips lost efficacy.
Embodiment mono-: the test strip of actinobacillus pleuropneumoniae endotoxin (ApxIV)
Referring to Fig. 1 and Fig. 2, in figure, 1 is supporting layer, make by hard plastic strip of foil, 2 is the sample adsorbing fiber layer of test lead, make with glass wool, 3 is golden labeling antibody fibrage, absorption has the glass wool of the monoclonal antibody of the anti-ApxIV of nanometer grade gold particle marker, prepare its gold mark monoclonal antibody glass wool according to the preparation method described in above-mentioned embodiment 3, 4 is cellulose rete, employing nitrocellulose filter is made, 5 is absorbent material layer, make with thieving paper, to number 2, 3, 4, 5 each layers stick on hard plastic strip of foil 1 from left end test lead to the right side, intersection crosses one another overlapping each other.On cellulose nitrate rete 4, the 6 detection trace T for the pairing monoclonal antibody solution printing with anti-ApxIV, 7 is the contrast trace C printing with sheep or rabbit anti-mouse igg solution, detects trace and contrast trace is orthoscopic or oblique line formula, two kinds of trace bands arrange the array configuration forming be "
||", "
//", "
?" in any.8-1 covers test lead sample adsorbing fiber layer 2 and golden labeling antibody fibrage 3 white diaphragm above; on the corresponding diaphragm 8-1 of 2 and 3 intersections position, be partial to sample adsorbing fiber layer 2 one side 0.5cm place and be printed on mark line 9; 9 right-hand member is printed on arrow and max printed words, absorbent material layer 5(handle end) on be coated with other color (as yellow) diaphragm 8-2.
The preparation of testing sample solution and detection operation steps, identical with the detection method of operating in embodiment 6, no longer repeat.
Embodiment bis-: the test strip of actinobacillus pleuropneumoniae endotoxin (ApxIV), basic identical with embodiment mono-, difference is:
The 3 use absorption of gold labeling antibody fibrage have the glass wool of the polyclonal antibody of the anti-ApxIV of gold grain mark to make, and prepare its gold mark polyclonal antibody glass wool according to the preparation method described in above-mentioned embodiment 3; On cellulose nitrate rete 4, the 6 detection trace T for the monoclonal antibody solution printing with anti-ApxIV, 7 is to print contrast trace C with the IgG solution of sheep or the anti-pig of rabbit, and it is " || ", " // ", " \ any in \ " that two kinds of trace bands are arranged the array configuration forming.Other comprises that detection sample preparation, method of operating and result judgement etc. are all identical with the method for operating in embodiment 6, no longer repeats.
Claims (8)
1. one kind is detected the test strip of actinobacillus pleuropneumoniae endotoxin (ApxIV), this test strips contains supporting layer and adsorbed layer, supporting layer is the lamella not absorbing water, adsorbed layer is attached on supporting layer, adsorbed layer is followed successively by the absorbent material layer of sample fiber layer, golden labeling antibody fibrage, cellulose rete and handle end from test lead, on cellulose rete, be prepared with and detect trace and contrast trace, it is characterized in that golden labeling antibody fibrage absorption has the anti-Apx of nanometer grade gold particle marker
monoclonal antibody, detect trace anti-Apx
pairing monoclonal antibody or polyclonal antibody print, the polyclonal antibody of sheep or the anti-mouse IgG of rabbit or staphylococcal protein A (SPA) are printed for contrast trace.
2. test strips according to claim 1, is characterized in that golden labeling antibody fibrage absorption has the anti-Apx of nanometer grade gold particle marker
monoclonal antibody, detects the anti-Apx of trace
pairing monoclonal antibody or polyclonal antibody print, the polyclonal antibody of sheep or the anti-mouse IgG of rabbit or staphylococcal protein A (SPA) are printed for contrast trace, or the absorption of golden labeling antibody fibrage has the anti-Apx of nanometer grade gold particle marker
polyclonal antibody, detect trace anti-Apx
monoclonal antibody preparation, contrast staphylococcal protein A (SPA) or how anti-preparation of anti-pig IgG for trace.
3. test strips according to claim 1 and 2, is characterized in that detecting the anti-Apx of trace
pairing monoclonal antibody preparation use anti-Apx
pairing monoclonal antibody solution preparation; Detect the anti-Apx of trace
polyclonal antibody preparation be and use anti-Apx
polyclonal antibody preparation.
4. test strips according to claim 1, is characterized in that supporting layer the hard plastic slip or the cardboard bar that do not absorb water make; Test lead sample adsorbing fiber layer is made with glass wool; Gold labeling antibody fibrage is made with glass wool and golden labeling antibody, and golden labeling antibody can be monoclonal antibody or polyclonal antibody.
5. test strips according to claim 1, is characterized in that cellulose rete nitrocellulose filter or pure cellulose film or carboxylation cellulose membrane or polyvinylidene fluoride PVDF cellulose membrane make.
6. test strips according to claim 1, is characterized in that absorbent material layer thieving paper makes.
7. test strips according to claim 1, is characterized in that detecting trace and contrast trace is orthoscopic or oblique line formula, on cellulose rete, contain three and detect traces and one contrast trace, the spread pattern that detects trace and contrast trace be "
||", "
//", "
?" in any.
8. test strips according to claim 1; it is characterized in that containing layer protective layer above test strips adsorbed layer; protective seam is attached on adsorbed layer; on test lead sample adsorbing fiber layer, golden labeling antibody fibrage and absorbent material layer, be coated with diaphragm; on the test lead sample adsorbing fiber layer diaphragm corresponding with golden labeling antibody fibrage intersection, be printed with sample mark line, this mark line deflection test lead sample adsorbing fiber layer about 0.5cm of one side place.
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CN105116142A (en) * | 2015-08-05 | 2015-12-02 | 上海拜攸生物科技有限公司 | Novel bacterial endotoxin detection test paper and detection method |
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WO2004052925A2 (en) * | 2002-12-09 | 2004-06-24 | Imperial College Innovations Limited | Actinobacillus pleuropneumoniae virulence genes |
CN101265457A (en) * | 2007-07-20 | 2008-09-17 | 华中农业大学 | Vaccine for differentiating porcine actinobacillus pleuropneumonia serum 7-type double-gene deletion mutant of vaccine immunity and virus infection animal and application thereof |
CN101339192A (en) * | 2008-08-28 | 2009-01-07 | 河南省农业科学院 | Test paper for one-step detection for pig virus diarrhoea disease pathogen |
CN101949934A (en) * | 2010-09-04 | 2011-01-19 | 扬州大学 | Early infection detection kit of monoclonal antibody-mediated pig pleuropneumoniae |
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2013
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2004052925A2 (en) * | 2002-12-09 | 2004-06-24 | Imperial College Innovations Limited | Actinobacillus pleuropneumoniae virulence genes |
CN101265457A (en) * | 2007-07-20 | 2008-09-17 | 华中农业大学 | Vaccine for differentiating porcine actinobacillus pleuropneumonia serum 7-type double-gene deletion mutant of vaccine immunity and virus infection animal and application thereof |
CN101339192A (en) * | 2008-08-28 | 2009-01-07 | 河南省农业科学院 | Test paper for one-step detection for pig virus diarrhoea disease pathogen |
CN101949934A (en) * | 2010-09-04 | 2011-01-19 | 扬州大学 | Early infection detection kit of monoclonal antibody-mediated pig pleuropneumoniae |
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CN105116142A (en) * | 2015-08-05 | 2015-12-02 | 上海拜攸生物科技有限公司 | Novel bacterial endotoxin detection test paper and detection method |
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