Brucellosis antibody competitive enzyme-linked immunosorbent assay reagent kit
An enzyme-linked immunosorbent assay and brucellosis technology, applied in the field of immunological testing, can solve the problems of backward technology and high false positives
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Embodiment 1
[0036] Embodiment 1, the brucellosis antibody competition enzyme-linked immunosorbent assay detection kit of the present invention, it is to utilize the lipopolysaccharide of smooth type brucella to make the antigen-coated microtiter plate, immunize healthy cattle with inactivated bacterial liquid Or artificially infect healthy cattle to prepare positive control serum and standard weak positive serum, use healthy non-immune bovine serum as negative control serum, use monoclonal antibody as competing antibody, enzyme-labeled secondary antibody (goat anti-mouse IgG), prepare serum diluent, Washing solution, substrate solution A, substrate solution B, H 2 o 2 , stop solution, assembly composition.
[0037] The brucellosis antibody competition ELISA detection kit of the present invention also has the following technical characteristics:
[0038] 1. The antigen-coated microtiter plate is prepared in this way:
[0039] (1) Coating: under sterile conditions, suspend the freeze-dri...
Embodiment 2
[0066] Embodiment 2, with regard to the related problems of the brucellosis antibody competition enzyme-linked immunosorbent assay detection kit of the present invention, be explained as follows:
[0067] 1 About strain selection and standards
[0068] Strain selection and seed algebra Many Brucella have been isolated at home and abroad, with different serotypes. At present, the Brucella that I keep and use is the bovine type S1119.3 strain, which is an international standard strain for preparing brucellosis detection antigens. This strain is easy to cultivate and is not prone to gross changes. Freeze-dried and stored at -70°C, the shelf life is at least 10 years.
[0069] According to the genetic stability study of the bacterium, the structure of the SLPS antigenic site is more stable after 10 generations of continuous passage of the bacterium.
[0070] 2 About antigen preparation
[0071] 2.1 Control of Bacterial Propagation Conditions S1119.3 is an international standard...
Embodiment 3
[0086] Example 3, the primary binding test for diagnosing brucellosis, including fluorescence polarization detection and enzyme-linked immunosorbent assay. The fluorescence polarization method is a homogeneous method that does not need to remove unbound reagents. The operation speed is fast, and the result can be obtained within two minutes, which can eliminate some vaccine reactions. It can be used not only in laboratory testing, but also in pastures and fields, and is suitable for the detection of brucellosis in wild animals. FPA has high sensitivity and is an excellent screening test. Relatively inexpensive and as accurate as other primary binding assays. This type of assay is also amenable to automation. It works by measuring the change in molecular reactivity caused by the reaction of antibodies with soluble antigen in the test sample. This response is measured if the antibody binds the antigen and the rate of rotation of the antigen decreases. The basic principle of ...
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