CN201673158U - Syphilis specificity IgG antibody collaurum immunity chromatographic detection test strip - Google Patents
Syphilis specificity IgG antibody collaurum immunity chromatographic detection test strip Download PDFInfo
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- CN201673158U CN201673158U CN2010201988631U CN201020198863U CN201673158U CN 201673158 U CN201673158 U CN 201673158U CN 2010201988631 U CN2010201988631 U CN 2010201988631U CN 201020198863 U CN201020198863 U CN 201020198863U CN 201673158 U CN201673158 U CN 201673158U
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Abstract
The utility model provides a syphilis specificity IgG antibody collaurum immunity chromatographic detection test strip, which can be used for syphilis specificity IgG antibody detection in specimens such as whole blood, serum, blood plasma, cerebrospinal fluid and the like. The syphilis specificity IgG antibody collaurum immunity chromatographic detection test strip is provided with a carrier plate, a sample injection cushion, a collaurum cushion, a nitrocellulose membrane, a syphilis specificity IgG antibody detection line, a control line and an absorbing cushion, the sample injection cushion, the collaurum cushion, the nitrocellulose membrane and the absorbing cushion are sequentially adhered on the upper surface of the carrier plate, one end of the sample injection cushion is disposed at one end of the collaurum cushion, the other end of the collaurum cushion is arranged at one end of the nitrocellulose membrane, one end of the absorbing cushion is disposed at the other end of the nitrocellulose membrane, the syphilis specificity IgG antibody detection line and the control line are sequentially arranged on the nitrocellulose membrane, an antihuman IgG specificity fragment gamma chain monoclonal antibody is coated at the syphilis specificity IgG antibody detection line, and a goat anti-syphilis antigen TPN17 and an IgG antibody of the TPN47 are coated on the control line.
Description
Technical field
The utility model relates to a kind of syphilis specific IgG antibodies detectable, especially relates to the syphilis specific IgG antibodies quick detection reagent bar that a kind of employing colloidal gold immunochromatographimethod technology (immunochromatography) is carried out.
Background technology
Syphilis (Syphilis) is that a kind of (its pathogen is a microspironema pallidum for Treponema pallidum, the sexually transmitted disease that TP) causes, belongs to Spirochaetaceae by microspironema pallidum.Approach such as the main trafficability characteristic contact of microspironema pallidum, blood transfusion, wound or placenta are propagated.Microspironema pallidum enters blood near the lymph node the infected area, sends out whole body, and nearly all tissue of body and organ are got involved, and clinical manifestation is a general, can be divided into different clinical stages, comprises first phase, second phase, three phases and latent period.The World Health Organization (WHO) is prophesy optimistically once: " because high sensitivity detection method and therapeutic scheme are efficiently arranged, syphilis is a kind of sexually transmitted disease that can succeed and control by the public health measure ".Regrettably, syphilis still is worldwide public health problem so far, lacks effective administrative control measure, annual global nearly 1,200 ten thousand patient, wherein 600,000 pregnant woman patients.(referring to: Health Protection Agency Centre for Infections.International Encyclopediaof Public Health-Syphilis[M] .London, UK:Health Protection Agency Centre, 2008,289-297.) in fact, the infection present situation of syphilis is possibly than more allowing people's pessimism in the imagination.
Investigation finds that syphilis the person be present among the general population more widely.
Microspironema pallidum still can not carry out in vitro culture, and controller used in syphilis diagnosis and epidemiology survey mainly depend on serological test, comprises that specific antibody and reagin detect two major types.Syphilis specific antibody IgM (TP-IgM) and IgG (TP-IgG) antibody are respectively at 2 weeks and the back generation of 4 weeks, even the patient is through enough treatments, it still can long-term existence, even do not disappear all the life (referring to: Luis J F, Felipe U S, Santa G C, et al.Evaluation of a rapid strip and a particle agglutinationtests for syphilis diagnosis[J] .Diagnostic Microbiology and Infectious Disease, 2007,59:123-126); And another kind of antibody materials reagin generation is later, generally produce in 5～7 weeks of infected back (referring to: Lin Yue circle .TPPA and value and the clinical relevant issues [J] of TRUST in controller used in syphilis diagnosis. the radioimmunology magazine, 2009,22 (3): 295-297), and late syphilis, syphilis treatment later stage and latent syphilis may be negative.Therefore positive rate, the susceptibility of syphilis specific antibody are significantly higher than reagin.After TP-IgM is syphilis, the specific antibody that body occurs at first.As long as there is microspironema pallidum alive to exist, its TP-IgM will maintain certain level.Martina H etc. (referring to: Martina H, Daan W N, Mart M, et al.Comparison of a Treponema pallidum IgM immunoblot with a 19S fluorescenttreponemal antibody absorption test for the diagnosis of congenital syphilis[J] .DiagnosticMicrobiology and Infectious Disease, 2007,59:61-66.) think that TP-IgM is a syphilis early infection and a movable serologic marker, Li Burong etc. (referring to: Li Burong, He Juntao, Zhang Yi, Deng. the clinical meaning [J] of microspironema pallidum IgM antibody test. The Fourth Military Medical University's journal, 2007,28 (16): 1495-1497) think that TP-IgM is the same with TP-DNA, representing syphilis infectiousness index.Under the prerequisite of the recent anti-syphilis treatment of eliminating, TP-IgM is not if turn out cloudy, and remaining microspironema pallidum of possibility or treatment are not thorough in the prompting body.The cloudy commentaries on classics person of TP-IgM changes positive when following up a case by regular visits to again, show that once more syphilization is (referring to Rawstron SA, Mehta S, Bromberg K, et al.Evaluation of a Treponema pallidum2specific IgMenzyme immunoassay and Treponema pallidum western blot antibody detection in the diagnosisofmaternal and congenital syphilis[J] .Sex Transm Dis, 2004,31 (2): 123-126).Although the TP-IgM feminine gender can not be got rid of infectiousness fully, the TP-IgM positive must point out this patient to have infectiousness.The appearance of TP-IgG will be later than IgM, the energy long-term existence, even do not disappear all the life, therefore, TP-IgG is an important indicator of controller used in syphilis diagnosis and epidemiology survey.
Early stage serological method uses complete microspironema pallidum as antigen, the TP of research and diagnosis usefulness obtains with TP infected rabbits testis, the TP amount that the cost of this method is big, obtain less, impure (being mixed with host protein), have cross reaction with other pathogen, so false positive happens occasionally also.Along with the clone in succession who reaches treponemal antigen that popularizes of Protocols in Molecular Biology, it is more and more that recombinant antigen is applied to the syphilis experiment.The many TP antigen of research has TPN17, TPN47, TPN15, TPN44.5, TPN36, TP0453, TP0684 and TPr family at present.The recombinant antigen that adopts recombinant DNA technology to prepare can overcome the shortcoming of complete TP antigen, can prepare endless special reorganization TP antigen fast, economically.
The syphilis specific antibody test is the syphilis confirmatory test, comprises TPHA, TPPA, and ELISA, FTA-ABS and Western-blot etc., its specificity is all higher.Yet the anti-system form in the face of severe not only needs special detection means accurately, also needs a kind of more simple and efficient reagent to come examination, so that provide countermeasure for clinical with the disease prevention and control.
Summary of the invention
The purpose of this utility model provides a kind of syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar that syphilis specific IgG antibodies detects in the samples such as whole blood, serum, blood plasma and cerebrospinal fluid that can be used for.
The utility model is provided with carrier board, application of sample pad, collaurum pad, nitrocellulose membrane (NC film), syphilis specific IgG antibodies detection line, control line and absorption pad.
Application of sample pad, collaurum pad, nitrocellulose membrane and absorption pad stick on the carrier board upper surface successively, one end of application of sample pad is located on the end of collaurum pad, the other end of collaurum pad is located on the end of nitrocellulose membrane, one end of absorption pad is located on the other end of nitrocellulose membrane, and syphilis specific IgG antibodies detection line and control line are located on the nitrocellulose membrane successively; , wrapped by the IgG antibody of goat-anti syphilis antigen TPN17 and TPN47 by anti-human IgG specific fragment γ chain monoclonal antibody at syphilis specific IgG antibodies detection line place bag at the control line place.
Described carrier board can adopt the PVC plate.
Below provide the preparation method of described syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar, may further comprise the steps:
1) preparation syphilis recombinant antigen TPN17 and TPN47
Adopt gene clone technology, the DNA of pcr amplification coding treponemal antigen, and make its expression in the insertion Escherichia coli, get syphilis recombinant antigen TPN17 and TPN47;
2) point sample of nitrocellulose filter
Bag is by anti-human IgG specific fragment γ chain monoclonal antibody on nitrocellulose filter IgG detection line, wrap by goat-anti syphilis antigen TPN17 and TPN47IgG antibody at the control line place, dry, the concentration of described anti-human IgG specific fragment γ chain monoclonal antibody is 1～4mg/mL, the IgG antibody of goat-anti syphilis antigen TPN17 and TPN47 was mixed with anti-TPN47-IgG antibody by anti-TPN17-IgG antibody in 1: 1 by volume, and its final concentration is 1～4mg/mL; Three's point sample amount is 1 μ L/cm;
3) preparation collaurum
Adopt the trisodium citrate method of reducing to prepare the 25nm collaurum, getting 1% gold chloride 1mL joins in the 100mL deionization distilled water, the gold chloride concentration that obtains is 0.01%, place the flask of band condensing unit to be heated to boiling, add 1% trisodium citrate aqueous solution 2.0mL under the magnetic force heated and stirred, continue heating till solution is vinicolor, cooling is placed in the brown bottle 4 ℃ of refrigerators and preserves standbyly, and the concentration of described trisodium citrate can be 2%;
4) mark of collaurum and TPN17, TPN47
The mark of collaurum and syphilis specific antigen TPN17: get collaurum 10ml, transfer to pH5.4, add 100 μ g TPN17 with 0.1mol/L NaOH, mixing, place 5min, add 5%BSA 1ml mixing, 4 ℃, the centrifugal 1h of 10000r/min, abandon supernatant, to precipitate with the TBS damping fluid and be dissolved to 10ml, 4 ℃, the centrifugal 1h of 10000r/min abandon supernatant, precipitation is diluted to 1ml with TBS, gets the TPN17 antigen of colloid gold label;
The same operation of mark of collaurum and syphilis specific antigen TPN47, the TPN47 antigen of colloid gold label;
After the TPN47 antigen of the TPN17 antigen of colloid gold label and colloid gold label mixed, be applied to equably on the glass fibre membrane, oven dry is prepared into the collaurum pad;
Described with colloid gold label TPN17 antigen and the TPN47 antigen of colloid gold label mix, preferably the TPN47 antigen of the TPN17 antigen of colloid gold label and colloid gold label is with volume ratio 1: mix (0.2～5); The temperature of described oven dry can be 37 ℃;
5) preparation immunochromatography detector bar
Application of sample pad, collaurum pad, nitrocellulose membrane and absorption pad are sticked on the carrier board upper surface successively, one end of application of sample pad is located on the end of collaurum pad, the other end of collaurum pad is located on the end of nitrocellulose membrane, one end of absorption pad is located on the other end of nitrocellulose membrane, and syphilis specific IgG antibodies detection line and control line are located on the nitrocellulose membrane successively; Wrap by anti-human IgG specific fragment γ chain monoclonal antibody at syphilis specific IgG antibodies detection line place, wrap by the IgG antibody of goat-anti syphilis antigen TPN17 and TPN47 at the control line place, be cut into strip with cutting cutter, get syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar.
The utility model provides a kind of syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar that syphilis specific IgG antibodies detects in the samples such as whole blood, serum, blood plasma and cerebrospinal fluid that can be used for, it is minimum to detect required specimen amount, do not need specific apparatus, the direct sentence read result of naked eyes, and detect easy fast, high specificity, sensitivity is higher, accurately and reliably, cost is lower, is widely used.
Description of drawings
Fig. 1 is that the structure of the utility model embodiment is formed synoptic diagram.
Fig. 2 is the experimental result pattern diagram.In Fig. 2, A is the synoptic diagram before using, and B is invalid test (product quality problem), the negative result of C, and D is the TP-IgG positive findings; 5 is the syphilis specific IgG antibodies detection line, and 7 is control line.
Embodiment
Following examples will be further described the utility model in conjunction with the accompanying drawings.
Referring to Fig. 1, the utility model embodiment is provided with carrier board 1, application of sample pad 2, collaurum pad 3, nitrocellulose membrane (NC film) 4, syphilis specific IgG antibodies detection line 5, control line 7 and absorption pad 8.Application of sample pad 2, collaurum pad 3, nitrocellulose membrane 4 and absorption pad 8 stick on carrier board 1 upper surface successively, one end of application of sample pad 2 is located on the end of collaurum pad 3, the other end of collaurum pad 3 is located on the end of nitrocellulose membrane 4, one end of absorption pad 8 is located on the other end of nitrocellulose membrane 4, and syphilis specific IgG antibodies detection line 5 and control line 7 are located on the nitrocellulose membrane 4 successively; , wrapped by the IgG antibody of goat-anti syphilis antigen TPN17 and TPN47 by anti-human IgG specific fragment γ chain monoclonal antibody at syphilis specific IgG antibodies detection line place bag at control line 7 places.
Described carrier board 1 adopts the PVC plate.
The preparation method of described syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar may further comprise the steps:
1) preparation syphilis recombinant antigen TPN17 and TPN47
Adopt gene clone technology, the DNA of pcr amplification coding treponemal antigen, and make its expression in the insertion Escherichia coli, get syphilis recombinant antigen TPN17 and TPN47.
2) point sample of nitrocellulose filter
Bag is by anti-human IgG specific fragment γ chain monoclonal antibody on nitrocellulose filter IgG detection line, wrap by goat-anti syphilis antigen TPN17 and TPN47IgG antibody at control line place (C), dry, the concentration of described anti-human IgG specific fragment γ chain monoclonal antibody is 1～4mg/mL, the IgG antibody of goat-anti syphilis antigen TPN17 and TPN47 was mixed with anti-TPN47-IgG antibody by anti-TPN17-IgG antibody in 1: 1 by volume, and its final concentration is 1～4mg/mL; Three's point sample amount is 1 μ L/cm.
3) preparation collaurum
Adopt the trisodium citrate method of reducing to prepare the 25nm collaurum, getting 1% gold chloride 1mL joins in the 100mL deionization distilled water, the gold chloride concentration that obtains is 0.01%, place the flask of band condensing unit to be heated to boiling, add 1% trisodium citrate aqueous solution 2.0mL under the magnetic force heated and stirred, continue heating till solution is vinicolor, cooling is placed in the brown bottle 4 ℃ of refrigerators and preserves standbyly, and the concentration of described trisodium citrate can be 2%.
4) mark of collaurum and TPN17, TPN47
The mark of collaurum and syphilis specific antigen TPN17: get collaurum 10ml, transfer to pH5.4 with 0.1mol/L NaOH, add 100 μ g TPN17, mixing, place 5min, add 5%BSA 1ml mixing, 4 ℃, the centrifugal 1h of 10000r/min abandon supernatant, to precipitate with the TBS damping fluid and be dissolved to 10ml, 4 ℃, the centrifugal 1h of 10000r/min abandon supernatant, and precipitation is diluted to 1ml with TBS.
The same operation of mark of collaurum and syphilis specific antigen TPN47, the TPN47 antigen of colloid gold label.
After the TPN47 antigen of the TPN17 antigen of colloid gold label and colloid gold label mixed, be applied to equably on the glass fibre membrane, oven dry is prepared into the collaurum pad.Described with colloid gold label TPN17 antigen and the TPN47 antigen of colloid gold label mix, the TPN47 antigen that is the TPN17 antigen of colloid gold label and colloid gold label is with volume ratio 1: mix (0.2～5); The temperature of described oven dry is 37 ℃.
5) preparation immunochromatography detector bar
Application of sample pad, collaurum pad, nitrocellulose membrane and absorption pad are sticked on the carrier board upper surface successively, one end of application of sample pad is located on the end of collaurum pad, the other end of collaurum pad is located on the end of nitrocellulose membrane, one end of absorption pad is located on the other end of nitrocellulose membrane, and syphilis specific IgG antibodies detection line and control line are located on the nitrocellulose membrane successively; Wrap by anti-human IgG specific fragment γ chain monoclonal antibody at syphilis specific IgG antibodies detection line place, wrap by the IgG antibody of goat-anti syphilis antigen TPN17 and TPN47 at the control line place, be cut into strip with cutting cutter, get syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar.
Below provide immunochromatographyassay assay patient's clinical samples:
Get sample to be checked (whole blood, serum, blood plasma, cerebrospinal fluid) 5～40 μ L, application of sample drips 100 μ L physiological saline in syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar sample place, leaves standstill the 20min observations.Only there is an aubergine band to occur, then is judged to feminine gender in the detector bar check plot; All there is an aubergine band to occur at detection zone and check plot, then is judged to the positive; After application of sample detected, the aubergine band did not all appear in detection zone and check plot, is null result (referring to Fig. 2).
Below provide the performance calibrating of syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar:
1) visual examination: white bag is by smooth, the clean pollution-free spot of reaction film, free from flaw, and adhesive tape does not have and comes unglued, and does not have and cuts oblique phenomenon.
2) positive sample coincidence rate: use the positive control serum of the different titers of the TP-IgG positive to adopt the calibrating of syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bars for each 50 parts, calculate positive coincidence rate.The clinical samples that definite employing FTA-ABS of positive control serum (German Ou Meng company) method is determined.
3) negative sample coincidence rate:, calculate positive coincidence rate with 50 parts of negative control serum calibratings.The clinical samples that definite employing TPPA (Japanese fuji Co., Ltd.) method of negative control serum is determined.
4) sensitivity detects: detect with the indoor quality controlled serum of the Ministry of Public Health, the minimum detectability degree should be less than or equal to 4NCU/mL, and is suitable with TPPA (Japanese fuji Co., Ltd.).
5) criticize interior difference: same batch of syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar, detect with characteristic serum, require the shade unanimity of positive serum testing result demonstration colour band, the feminine gender as a result that negative serum detects.
6) differences between batches: different batches syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar, detect with characteristic serum, require the shade unanimity of positive serum testing result demonstration colour band, the feminine gender as a result that negative serum detects.
7) interference test: testing result is not subjected to the interference of sample hemolysis (n=50), piarhemia (n=50) and jaundice (n=50).Serum (or blood plasma) is from the applicant's clinical samples.
8) cross reaction: adopt this syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar, carry out the detection of systemic loupus erythematosus (n=30), rheumatoid disease (n=30), autoallergic autoimmunity systemic diseases such as (n=30), do not find cross reaction.The serum of autoimmunity systemic disease is from the applicant's clinical definite patient.
9) Detection of Stability: use the Arrhenius rule, syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar is placed 37 ℃ to be detected after 20 days, more than every index do not have marked change, guarantee that finished product preserves under the drying at room temperature condition, the term of validity is 18 months.
Detection of the present utility model is carried out on a syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar, realizes the detection of syphilis specific IgG antibodies by following dual mode:
Mode one: utilize the colloidal gold immunochromatographimethod technology, wrap respectively by anti-human IgG specific fragment γ chain monoclonal antibody and goat-anti syphilis antigen TPN17 and TPN47 IgG antibody at IgG detection line and control line place on nitrocellulose filter.Be coated on the all-glass paper in advance after the syphilis recombinant antigen TPN17 of the golden mark of purifying and TPN47 mixed in certain proportion, dried, be prepared into the collaurum pad, be aided with appropriate application of sample pad again, be combined into syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar (assembling mode is referring to Fig. 1).When detecting positive sample, syphilis specific IgG antibodies combines the formation immune complex with the recombinant antigen TPN17 and/or the TPN47 of colloid gold label in the sample.Because the chromatography effect, compound moves forward along the thieving paper direction of absorption pad.During through detection line, 1. TP-IgG para-immunity compound combines formation " the anti-syphilis IgG antibody of Au-TPN17 (and/or TPN47)-specificity-anti-human IgG monoclonal antibody-solid phase material " centre-fills and condenses colour developing with the anti-human IgG monoclonal antibody of pre-bag quilt; 2. free gold mark antigen is then in control line place and goat-anti syphilis antigen TPN17 and TPN47 antibodies and enrichment develops the color.Negative sample then only develops the color at the control line place.
Mode two: envelope antigen, the antibody of mode one are exchanged: wrap respectively by syphilis recombinant antigen (TPN17/TPN47 combination) and sheep anti-mouse igg antibody at IgG detection line and control line place on nitrocellulose filter, and the anti-human IgG specific fragment γ chain monoclonal antibody of golden mark is coated on the all-glass paper in advance.
Carrier board adopts the PVC material, and the application of sample pad adopts glass fiber material, and absorption pad adopts waterleaf paper.
Below provide specific embodiment.
Embodiment 1
Bag is by anti-human IgG specific fragment γ chain monoclonal antibody on the syphilis specific IgG antibodies detection line, and by goat-anti syphilis antigen TPN17 and TPN47 antibody, room temperature is dried at control line place bag, and the sealing room temperature preservation is standby.Wherein, the concentration of anti-human IgG specific fragment γ chain monoclonal antibody is 1mg/mL, and goat-anti syphilis antigen (TPN17 and TPN47) IgG antibody was mixed with anti-TPN47-IgG antibody by anti-TPN17-IgG antibody in 1: 1 by volume, and its final concentration is 1mg/mL; The two point sample amount is 1 μ l/cm.
After the syphilis recombinant antigen TPN17 of the golden mark of purifying and TPN47 mixed with volume ratio at 1: 1, be applied to equably on the all-glass paper,, be prepared into golden bond pad, seal standby 37 ℃ of oven dry.The glass fibre that immobilised tunica fibrosa is combined with collaurum, thieving paper etc. are combined by PVC adhesive sticker base plate in certain sequence, are cut into the certain width detector bar with cutting cutter.Detector bar is packed in the aluminium foil bag with drying agent, and machine seals, and sealing is preserved.
Get sample serum 10 μ L to be checked, application of sample drips 100 μ L physiological saline simultaneously in syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar sample application zone, leaves standstill the 20min observations.Only there is an aubergine band to occur, then is judged to feminine gender in syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar check plot; All there is an aubergine band to occur at detection zone and check plot, then is judged to the positive; After application of sample detected, the aubergine band did not all appear in detection zone and check plot, is null result (referring to Fig. 2).
Similar to embodiment 1, difference is that the collaurum pad only is made up of TPN17, does not contain TPN47.The result judges identical with embodiment 1.
Similar to embodiment 1, difference is that the collaurum pad only is made up of TPN47, does not contain TPN17.The result judges identical with embodiment 1.
Similar to embodiment 1, difference is that sample to be checked is a samples of CSF, and the result judges identical with embodiment 1.
The performance verification test: the scheme by embodiment 1 prepares syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar, carries out performance verification then.
1) visual examination: white bag is by smooth, the clean pollution-free spot of reaction film, free from flaw, and adhesive tape does not have and comes unglued, and syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar width does not have and cuts oblique phenomenon at 3 ± 0.1mm.
2) positive sample coincidence rate: 50 parts are detected the positive control serum of the TP-IgG that determines through FTA-ABS (German Ou Meng company), adopt the syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar of invention to detect positive 49 parts of TP-IgG, positive sample coincidence rate 98%.
3) negative sample coincidence rate: the negative control serum of 50 parts of microspironema pallidum specific antibody GATs (TPPA) (Japanese fuji Co., Ltd.), adopt the syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar of invention not detect positive sample, negative sample coincidence rate 100%.
4) sensitivity detects: detect with the indoor quality controlled serum of the Ministry of Public Health, the minimum detectability degree should be less than or equal to 4NCU/mL, and is suitable with TPPA (Japanese fuji Co., Ltd.).
5) criticize interior difference: same batch of syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar, detect the high, medium and low serum of determining of the positive TP-IgG reference of clinical samples with characteristic positive serum (FTA-ABS (German Ou Meng company)) detect, identical titre testing result shows the shade unanimity of colour band, the feminine gender as a result that negative serum detects.
6) differences between batches: different batches syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar, detect the high, medium and low serum of determining of the positive TP-IgG reference of clinical samples with characteristic positive serum (FTA-ABS (German Ou Meng company)) detect, identical titre testing result shows the shade unanimity of colour band, the feminine gender as a result that negative serum detects.
7) interference test: testing result is not subjected to the interference of sample hemolysis (n=50), piarhemia (n=50) and jaundice (n=50).
8) cross reaction: adopt this syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar, carry out the detection of systemic loupus erythematosus (n=30), rheumatoid disease (n=38), autoallergic autoimmunity systemic diseases such as (n=40), do not find cross reaction.
9) Detection of Stability: syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar is placed 37 ℃ detects after 20 days, more than every index do not have marked change.
Claims (2)
1. syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar is characterized in that being provided with carrier board, application of sample pad, collaurum pad, nitrocellulose membrane, syphilis specific IgG antibodies detection line, control line and absorption pad; Application of sample pad, collaurum pad, nitrocellulose membrane and absorption pad stick on the carrier board upper surface successively, one end of application of sample pad is located on the end of collaurum pad, the other end of collaurum pad is located on the end of nitrocellulose membrane, one end of absorption pad is located on the other end of nitrocellulose membrane, and syphilis specific IgG antibodies detection line and control line are located on the nitrocellulose membrane successively; , wrapped by the IgG antibody of goat-anti syphilis antigen TPN17 and TPN47 by anti-human IgG specific fragment γ chain monoclonal antibody at syphilis specific IgG antibodies detection line place bag at the control line place.
2. syphilis specific IgG antibodies colloidal gold immunochromatographiassay assay reagent bar as claimed in claim 1 is characterized in that described carrier board is the PVC plate.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858915A (en) * | 2010-05-19 | 2010-10-13 | 厦门大学附属中山医院 | Reagent strip for testing syphilis specific IgG antibodies through gold immunochromatographic assay and preparation method thereof |
| CN102095860A (en) * | 2011-01-25 | 2011-06-15 | 厦门大学附属中山医院 | Western blot kit for specific IgG antibodies of syphilis and preparation method thereof |
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2010
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858915A (en) * | 2010-05-19 | 2010-10-13 | 厦门大学附属中山医院 | Reagent strip for testing syphilis specific IgG antibodies through gold immunochromatographic assay and preparation method thereof |
| CN102095860A (en) * | 2011-01-25 | 2011-06-15 | 厦门大学附属中山医院 | Western blot kit for specific IgG antibodies of syphilis and preparation method thereof |
| CN102095860B (en) * | 2011-01-25 | 2013-12-18 | 厦门大学附属中山医院 | Syphilis specific IgG antibody western blot kit and preparation method thereof |
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