Comparative Analysis of Electron Microscopy Techniques for Hydrogel Microarchitecture Characterization: SEM, Cryo-SEM, ESEM, and TEM - Jeanne Aigoin; Bruno Payré; Jeanne Minvielle Moncla; Mélanie Escudero; Dominique Goudouneche; Daniel Ferri-Angulo; Pierre-François Calmon; Laurence Vaysse; Philippe Kemoun; Laurent Malaquin; Julie Foncy (ACS Omega)