Figure 1: modified from Bender et al, Am J Biol Life Sci 2014; 2(3): 72-79. (A) Cells are treated with the selected compounds (AOx) and the dichlorofluorescein diacetate molecule, DCF-DA, which is absorbed by cells by passive diffusion and deacetylated by cell esterases to non-fluorescent DCFH. (B) DCFH is rapidly oxidized by free radicals, produced by 2,2'-Azobis [2-methylpropionamide] dihydrochloride, AAPH, a peroxyl radical initiator. Free radicals lead to the oxidation of DCFH to DCF which emits fluorescence proportional to the level of oxidation. Under these conditions, a decrease in the fluorescence signal compared to untreated cells indicates the antioxidant capacity of the tested compound, as antioxidants react with peroxyl radicals preventing the formation of fluorescent DCF dichlorofluorescein.
Request an offer from us and we will get back to you as soon as we can.
+49 (0) 2 21 - 22 25 120
Nattermannallee 1 ·
50829. COLOGNE