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Rheological properties of the HM1 membranes (triangle grey symbols) and the HM1 membranes loaded with caffeine using (A) diffusion and (C) mixing method, and with diclofenac sodium using (B) diffusion and (D) mixing method, at 25 °C. Diffusion and mixing methods are represented by square and circle symbols, respectively. Mechanical spectrum storage (G′, solid symbols) and loss moduli (G″, open symbols).
