Fig. 3.
a Viability percentage of L929 mouse fibroblast cells cultured with the extract solutions of the hydrogels for 1 day. b The number of attached and proliferated L929 mouse fibroblast cells cultured with extract solutions of the hydrogels for 1, 2, and 3 days. c The concentration of collagen produced by L929 mouse fibroblast cells cultured with the extract solutions of the hydrogels for 1, 2, and 3 days. The cells cultured with DMEM and Zn were served as negative and positive control, respectively