Figure 1.
The photographs of wet and dried alginate-NOCC beads taken under an optical microscope. (a) Freeze-dried SA-loaded bead, (b) unloaded wet bead, (c) SA-loaded wet bead, and air dried SA-loaded beads prepared at different polymer concentrations (w/v): (d) 1.5%, (e) 3%, and (f) 4.5%.