Figure 4.
Photo-Induced Disassembly/Reassembly
(A) Schematic representation of the photo-switchable disassembly/reassembly process triggered by the photoisomerization of the azobenzene units.
(B) UV-Vis absorption spectra (50 μM in H2O) detecting the photo-isomerization process of the azobenzene units. The inset curve shows the reversible switching cycles driven by repeating UV (365 nm, 2 min) and visible light (420 nm, 5 min) irradiation.
(C) DLS results of the supramolecular films before and after corresponding light irradiation.
(D–F) TEM images show the reversible light-switched disassembly/reassembly morphologies.