Fig. 3

SEM images Alg + Fib (A). Ultrastructural imaging indicated the presence of cells within the cells (yellow arrows). Measuring the degradation rate over 4 days (B; n = 3). According to the data, the degradation rate was initiated 1 day after incubation in in vitro conditions without statistically significant changes. On days 2, 3, and 4, Alg + Fib at ratios of 1: 1, and 2: 1 exhibited a higher degradation rate compared to the Alg hydrogel alone. Swelling rate (C; n = 3). A higher swelling ratio was indicated in groups Alg + Fib at ratios of 1: 1, and 2: 1 compared to the Alg hydrogel alone. We found non-significant differences in terms of swelling rate between Alg + Fib (1: 1) and Alg + Fib (2: 1) at all-time points. One-Way ANOVA with Tukey post hoc. *p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001