34results about How to "The result is clear and easy to distinguish" patented technology

The invention belongs to the field of bio-detection and particularly relates to a C reactive protein saliva test paper strip and a preparation method thereof. The C reactive protein saliva test paper strip includes a reactive film and a gold marker pad. The reactive film is a nitrocellulose membrane, which has a detection line coated with a C reactive protein monoclonal antibody and a quality control line coated with goad-anti-mouse IgG. The gold marker pad is a polyester membrane that is coated with the C reactive protein monoclonal antibody marked by colloidal gold. The test paper strip, with human saliva as a detection sample, can effectively monitor the C reactive protein in saliva. The test paper strip has strong specificity and good repeatability, has high sensitivity, is 10 mg / L in lowest detection limit, is easy to operate and is free of special instruments and devices and professional training, has clear and distinguishable result and is easy to promote, and is suitable for on-site test.

The invention provides a quick detection test strip for detecting leptospira IgM antibody, comprising a reaction film and a combination releasing pad; wherein the reaction film is provided with a detection zone capable of wrapping leptospira specific antigen ompL1 and LipL32 and a quality control zone encasing secondary antibody IgG, and the combination releasing pad is encased by anti-human IgM monoclonal antibody marked by colloidal gold. Leptospira specific IgM antibody in a specimen is detected by applying membrane chromatography capturing method. The test strip of the invention is applied to detection and is easy, convenient, fast and short-cut to operate, special instrument or equipment or professional training are not needed, the result is clear and easy to recognize, and the operation is easy, thus being easy to popularize, being applicable to basic level, field detection and early diagnosis, and being beneficial to leptospira infection diagnosis.

The invention provides a colloidal gold test strip for the detection of Leptospira. A monoclonal antibody of Leptospira specific antigen LipL32 or polyclonal antibody of anti Leptospira specific antigen, and a quality control double-antibody IgG coat a nitrate cellulose film (NC film), and a membrane chromatography double antibody sandwich method is adopted to detect the leptospira in a specimen in combination with a monoclonal antibody of colloidal gold labeled Leptospira specific antigen LipL32. The test strip is simple in operation, convenient, and fast, and has the advantages of no requirements of special instruments and special training, clear and identified result, and easy popularization. The test strip is suitable for base course, large scale site detection of an accident and epidemiological investigation, and has auxiliary effect on the diagnosis of leptospira infection.

The invention provides a colloidal gold test strip for the detection of Japanese encephalitis virus specific IgG antibody. A Japanese encephalitis virus E gene antigen domain III and an anti III polyclonal antibody are coated on a nitrate cellulose film (NC film), and a membrane chromatography double antigen sandwich method is adopted to detect the Japanese encephalitis virus specific IgG antibody in an animal or human body serum specimen in combination with a colloidal gold labeled Japanese encephalitis virus E gene antigen domain III. Or the Japanese encephalitis virus E gene antigen domainIII and an anti-mouse IgG are coated on the nitrate cellulose film (NC film), and a capture method is adopted to detect the Japanese encephalitis virus specific IgG antibody in the human body serum specimen in combination with a colloidal gold labeled antihuman monoclonal antibody. The test strip is simple in operation, convenient, and fast, and has the advantages of no requirements of special instruments and special training, clear and identified result, and easy popularization. The test strip is suitable for base course, site detection and epidemiological investigation, has auxiliary effecton the diagnosis of Japanese encephalitis virus infection, and can be used for the effect observation after vaccination.

The invention provides a test strip for rapid detection of clostridium difficile toxins A and B. A monoclonal antibody or polyclonal antibody of the clostridium difficile toxin A, a monoclonal antibody or polyclonal antibody of the clostridium difficile toxin B, and a quality control double-antibody IgG coat a nitrate cellulose film (NC film), and a membrane chromatography double antibody sandwich method is adopted to detect the clostridium difficile toxins A and B in a specimen in combination with a monoclonal antibody of colloidal gold labeled clostridium difficile toxins A and B. The test strip is simple in operation, convenient, and fast, and has the advantages of no requirements of special instruments and special training, clear and identified result, and easy popularization. The test strip is suitable for base course, site detection and epidemiological investigation, and has auxiliary effect on the diagnosis of clostridium difficile toxin infection.