Figure 2

NMR skin HA. (a) Scanning electron microscopy (SEM) of NMR HA extracted from NMR skin fibroblast media. (b) Supercoils linked together with a large fibre. (c) High resolution SEM showing high density of folds (d) AFM of HA extracted from NMR skin fibroblast media (e) AFM of NMR HA extracted from skin tissue. exhibiting again highly folded as in the case of HA extracted from NMR fibroblasts. (f) AFM of individual HA chains extracted from NMR skin tissue.