{"product_id":"bek1118","title":"Human IL-12(p70) ELISA Kit","description":"\u003cstrong\u003eApplication:\u003c\/strong\u003e For quantitative detection of IL-12(P70) in human serum, body fluids, tissue lysates or cell culture supernatants.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIntroduction:\u003c\/strong\u003e Interleukin 12 (IL-12) is an interleukin that is naturally produced by dendritic cells, macrophages and human B-lymphoblastoid cells (NC-37) in response to antigenic stimulation. IL-12 is composed of a bundle of four alpha helices. It is a heterodimeric cytokine encoded by two separate genes, IL-12A (p35) and IL-12B (p40). IL-12 plays an important role in the activities of natural killer cells and T lymphocytes. It mediates enhancement of the cytotoxic activity of NK cells and CD8+ cytotoxic T lymphocytes. IL-12 also has anti-angiogenic activity, which means it can block the formation of new blood vessels.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePrinciple of the Assay:\u003c\/strong\u003e This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-IL-12(P70) polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-IL-12(P70) polyclonal antibody was used as detection antibodies. The standards, test samples and biotin conjugated detection antibody were added to the wells subsequently, and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with wash buffer. TMB substrates were used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the IL-12(P70) amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of IL-12(P70) can be calculated.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eStorage and Expiration:\u003c\/strong\u003e Store at 2-8℃ for 6 months, or at -20℃ for 12 months.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRange:\u003c\/strong\u003e 7.8 pg\/ml - 500 pg\/ml\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSensitivity:\u003c\/strong\u003e \u0026lt; 2 pg\/ml","brand":"Biospes","offers":[{"title":"96T","offer_id":50409024979224,"sku":"BEK1118","price":500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/5652\/1400\/files\/Biospes-logo_dfaf2ddd-81ca-4238-acd3-418419a11470.jpg?v=1750988488","url":"https:\/\/danabiosci.com\/products\/bek1118","provider":"Dana Bioscience","version":"1.0","type":"link"}