Figure 5

(a) Photos of the selected SA-based (A8, A9), and CH-based (C6, C8) hydrogel samples swelled in deionized water before drying process. (b) Zeta potential analysis of selected SA-based (A8, A9), and CH-based (C6, C8) hydrogels.

(a) Photos of the selected SA-based (A8, A9), and CH-based (C6, C8) hydrogel samples swelled in deionized water before drying process. (b) Zeta potential analysis of selected SA-based (A8, A9), and CH-based (C6, C8) hydrogels.