Fig. 3

Representative microscopic images for HFF1 and HaCaT cell attachment and proliferation. a HFF1 cells (2 h to 8 h) and (b) HaCaT cells (3 h to 12 h) attachment test. c Proliferation tests of HFF1 for 2, 4, and 6 days. d The proliferation of HaCaT from day 3 to day 6 in media with and without gels