Research Article

Formulation of Novel Layered Sodium Carboxymethylcellulose Film Wound Dressings with Ibuprofen for Alleviating Wound Pain

Figure 3

Microscopic appearance of the film with ibuprofen crystallized from acetone solution (0.5-Ibu-1 without Sanatyl): (a) magnification 7.5x, bar 1000 μm, (b) magnification 20x, bar 500 μm.