Figure 3

Analysis of the excitation wavelength dependence of DND fluorescence. (A) Normalized fluorescence intensity inferred from Fig. 2A directly (green markers) and normalized fluorescence corrected for differences in absorption shown in Fig. 1A (blue markers). (B) Fluorescence emission peak position. (C) Fluorescence lifetime τ2 of the slow decay component. All lines are a guide to the eye only. See SI for details on data analysis and fitting.