Fig. 2: Characterization of the native folded conformation of PNF and its self-assembly.
From: Transient dormant monomer states for supramolecular polymers with low dispersity
a CT absorption band of PNF, originating from the intramolecular folded conformation and b corresponding quenched emission of pyrene due to CT interaction, compared with the emission of the model molecule, Pyrene-HEG, (λexc = 300 nm). Inset shows the molecular structure of Pyrene-HEG. c TEM and d AFM images of the tape structures along with the height profile shown in inset. e Schematic for the bilayer packing of the folded PNF molecules in the tape structure. f Structured illumination microscopy (SIM) image of the tape structures loaded with Nile red dye in the bilayer (λexc = 561 nm). [PNF] = 5 × 10−5 M, [Pyrene-HEG] = 5 × 10−5 M, [Nile red] = 5 µM. CH3CN/H2O (1:1 v/v), pH = 8, buffer.
