3.1.3. Morphological propertiesThe morphology of the CS and FITC–CH papers was investigatedby SEM using different magnifications (150, 500and 1500)and views (coated side, uncoated side and cross-section). TheSEM images of the FITC–CH-coated papers (Fig. 5–7) clearlyshowed the features of their three major components, viz. the fi-bers, the inorganic fillers and the chitosan film, the latter being particularly evident when three or more CH layers were applied.The most interesting feature, however, has to do with the unifor-mity of the chitosan film over all the examined surfaces, which cor-roborates the spectroscopic observations.