Figure 1From: Hydrogels containing redispersible spray-dried melatonin-loaded nanocapsules: a formulation for transdermal-controlled deliveryImages obtained by SEM of powders. (a) Pure lactose, (b) dried nanocapsules using lactose (D-NC-L), (c) pure maltodextrin, and (d) dried nanocapsules using maltodextrin (D-NC-M) at × 3,000.Back to article page