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. Author manuscript; available in PMC: 2020 Jun 3.
Published in final edited form as: Angew Chem Int Ed Engl. 2019 Apr 23;58(23):7611–7614. doi: 10.1002/anie.201810919

Figure 2.

Figure 2.

(a) UV/vis titration and (b) fluorescence titration of the sensor NS510 (10 µM in 25 mM HEPES, 50 mM Na2S2O3, pH = 7.4) with norepinephrine (10 mM in buffer, λex = 488 nm). Inset in (b) is a plot of emission intensity at 510 nm versus concentration with a fit to a one-site binding isotherm.