Table 3.

Water-in-air contact angle measurement results (n = 4). The significance levels were set at * p < 0.01 and ** p < 0.001 compared with control (PCL).

Time	PCL	PCL/G (1 wt.%)	PCL/G (3 wt.%)	PCL/G (5 wt.%)	PCL/N-G (1 wt.%)	PCL/N-G (3 wt.%)	PCL/N-G (5 wt.%)
0 s	88.11°± 2.00°	79.97° ± 0.98° **	84.15° ± 3.85°	86.74° ± 3.36°	84.91° ± 2.29°	88.01° ± 1.18°	95.29° ± 2.54° *
15 s	86.72°± 2.37°	78.94° ± 0.79° *	83.13° ± 3.92°	85.42° ± 3.91°	84.00° ± 2.28°	87.25° ± 0.61°	95.02° ± 2.58° *
30 s	86.41°± 2.45°	78.51° ± 0.92° *	82.33° ± 4.19°	85.05° ± 3.87°	83.66° ± 2.24°	87.00° ± 0.60°	94.87° ± 2.59° *