Table 2.

Water contact angles on various surfaces

Sample	GPG	GPG-RGD	GPG-REDV	Collagen	Glass
Representative image
Contact angle ($°$)	63.1 ± 1.4	66.4 ± 0.8	65.8 ± 0.9	50.4 ± 2.4	76.7 ± 1.7

Data are presented as the mean ± SE of eight or more independent measurements.