Figure 7
From: Amplified spontaneous emission and gain in highly concentrated Rhodamine-doped peptide derivative
(a) Selected fluorescence microscopy images of the peptide solution drop-casted on a glass slide and air-dried at room temperature. Images are obtained by exciting the sample in the spectral region of DAPI and keeping the light on for 240 min. Scale bar is 50 μm. (b) Evaluation of the fluorescence intensity percentage decrease due to photoinstability phenomena.
