| Fig. 7 Structural and physicochemical analyses of the supramolecular hydrogel. a) A TEM image of a hydrogel 3 without staining. b) Powder X-ray diffraction spectrum of the freeze-dried hydrogel 3. c) FT-IR (ATR) spectra of 3. d) Crystal structure analysis of the molecular packing of 3 prepared from a hydrogel. e) Fluorescence spectra of hydrogel and solution containing environmental fluorescent probes ANS (excitation wavelength = 380 nm). f) A confocal laser scanning micrograph of a hydrogel containing ANS with a UV laser (351 nm). |
