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. 2020 Feb 20;8:39. doi: 10.3389/fchem.2020.00039

Figure 1.

Figure 1

(A) Emission spectra for 7-hydroxcoumarin-3-carboxylic acid (5 μM), CM (5 μM), CL (5 μM), and CE (5 μM) in PBS buffer, pH = 7.4 at 25°C. Fluorescence intensities were measured with λex = 340 (bandwith: 20) nm on a BMG Labtech CLARIOstar® plate reader. (B) Emission spectra for 7-hydroxcoumarin-3-carboxylic acid (5 μM), and CM (5 μM), CL (5 μM), and CE (5 μM) in the presence of ONOO− (50 μM) in PBS buffer, pH = 7.4 at 25°C. Fluorescence intensities were measured with λex = 340 (bandwith: 20) nm on a BMG Labtech CLARIOstar® plate reader.