Figure 4
From: A zoom into the nanoscale texture of secondary cell walls
Height images of the network of casted cellulose nanocrystals measured with an AFM (a)/SNOM (b) tip and Height (c)/SNOM (d) image of the bilayer system (cellulose nanocrystals and lignin). In the height image of the casted cellulose, measured with the AFM tip, the nanocrystal network is clearly visualized (a); in contrast to the topography of the same sample revealed by the SNOM tip (b). The height image of the bilayer (c) reveals the typically formed globular structures of lignin together with the underlying network of the nanocrystals. In contrast in the SNOM image of the bilayer (d) only the globules of the lignin macromolecules and their agglomerations can be seen.