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Relative fluorescence intensity ((Fother mycotoxins − F0)/(FAFM1 − F0)) of the aptamer-bridged FRET biosensor for AFM1 detection in the presence of different mycotoxins, where F0 is the fluorescence intensity in the absence of AFM1 or other mycotoxins. Data were presented as average ±SD from three independent measurements. The concentration of mycotoxins were all 150 pg/mL. Experiments were conducted in HEPES buffer under excitation at 480 nm.
