Detection of environmental chemicals using sensor 6. (A) Compounds reported to not show estrogenic activity were tested at 10 μM, along with 0.1% ethanol control (0 M) and 0.1 μM 17β-estradiol as controls (BHT = butylated hydroxytoluene). (B) Compounds reported to show estrogenic activity: daidzein, equol, resveratrol, β-zearalanol, tert-octylphenol, nonylphenol, bisphenol A (BPA), o,p’-DDT, and 2,2’,5-trichloro-4-hydroxy-PCB (PCB) were tested at concentrations up to 10 μM. Data was normalized to the 100 nM estradiol condition and is shown as the mean and standard error of the mean.