Heart-type fatty acid binding protein detection device with starting control structure and preparation method of heart-type fatty acid binding protein detection device
A technology of fatty acid combination and start-up control, which is applied in the field of immunoassay, can solve the problems of uncontrollable reaction start time, unstable immunochromatographic detection results, incomplete and uniform flow, etc., so as to improve the capture and binding ability, improve the application prospect, The effect of improving detection accuracy
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Embodiment 1
[0027] Example 1: Preparation of heart-shaped fatty acid-binding protein detection device with activation control structure of the present invention
[0028] (1) Preparation of binding membrane pad
[0029] Dissolve BSA and NaCl with pH 8.0 sodium bicarbonate buffer to a final concentration of 2% BSA and 0.1 M NaCl, then add surfactant Tween20 to a final concentration of 0.5%, adjust pH to 8.0, press glass fiber Plain film water absorption 60uL / cm 2 , spread the above buffer evenly on the glass cellulose membrane, dry at 37°C for 8 hours, and store at 4°C for later use.
[0030] Take 0.5mL of fluorescent microsphere solution with a particle size of 300nm, wash with 2mL of 50mM, pH6.0 MES buffer to remove the surfactant in the microsphere solution, and then dissolve the microspheres to 50mM, pH6.0 MES buffer to 2mL, then activated with 500uL of 10mg / mL activator EDC and 500uL of 50mg / mL stabilizer NHS, then washed with 50mM MES, pH 6.0 to remove the remaining activator, re-di...
Embodiment 2
[0035] Embodiment 2: the present invention and the contrast reagent test result comparison
[0036] (1) Materials: The sample used was a human-type fatty acid-binding protein control with a concentration of 50 ng / ml.
[0037] (2) Add the human-type fatty acid-binding protein control product to 10 control reagent cards and 10 reagent cards of the present invention, respectively, to start the reaction, and use it after 5, 8, 10, 15, 20, and 25 minutes of reaction. The fluorescence detector was used for detection, the detection results were recorded, and the measurement mean and CV value of each time point were calculated.
[0038]
[0039] Table 1 Test results of comparative test 1
[0040] (3) Add the human-type fatty acid-binding protein control substance to 10 control reagent cards 2 and 10 reagent cards of the present invention, respectively, to start the reaction, and use it after 5, 8, 10, 15, 20, and 25 minutes of reaction. The fluorescence detector was used for dete...
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