Fig. 1

a Repair area percentage [as (Areat ₀ − Area t/Areat ₀) × 100] for the control and in presence of following stimuli: H-HA, L-HA and of H-HA/L-HA complex, all at 0.1%w/v; the curves are averages of three different experiments with variations within 5 % of the value. b Comparison of the healing rates between control and the samples H-HA, L-HA and H-HA/L-HA complex (0.1%w/v). The data represent an average of three repeats; with the terms repeats, we indicate that samples are collected from threeindependent experiments; data shown are means ± SD; the t student is calculated respect to the control (*p < 0.005; **p < 0.05)