Figure 3.

Mechanical characterization of AC and ACPs. (a) Morphology of fabricated ACPs. Optical images of ACP_0.5 (top) and ACP₁ (bottom) and their average size and aspect ratio. (b) Oscillation frequency sweep measurement of AC (black), ACP_0.5 (light blue), and ACP₁ (dark blue). Filled circles represent storage modulus (G′), and empty circles represent loss modulus (G″). (c) Storage modulus (black) and tan (δ) (red) value of each sample at the frequency of 1 Hz. (d,e) Adhesive strength of Alg bead, AC, ACP_0.5, and ACP₁ on porcine skin tissue with the application of shear stress (d) and tensile stress (e). Experimental setup for each test is demonstrated on the left side of each panel. One-way ANOVA; ns means not significant, * p < 0.05, ** p < 0.01, **** p < 0.0001.