Research Article

Polyelectrolyte Complexation versus Ionotropic Gelation for Chitosan-Based Hydrogels with Carboxymethylcellulose, Carboxymethyl Starch, and Alginic Acid

Figure 6

Optical micrograph of a hydrogel sample made by ionotropic gelation of CMS 5.6% and CaCl2 4.9%. Scale 50x.