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(a) Schematic of formation of gelators from the precursors of H, A, and A–. A-FL was used as a fluorescence label for self-assembled structures. (b) Photograph of the gel sample. (c) CLSM image of the gel networks. d) Magnified 2D and (e) the corresponding 3D CLSM images (transparent mode) of the gel networks. (c–e) 30 μM A-FL was added to the pregel solution.
