The addition of L-DOPA further decreased, as expected, the surface hydrophilicity of photocured network to 71.8 and 69.2 degree, for the macromonomers that contain with 5 and 10 wt.% L-DOPA, respectively (Table ). This can be explained by presence of dihydroxy functionality of catechol within L-DOPA (Error! Reference source not found., in Supplementary Information) which enables it to form strong hydrogen bonds with water during the measurement time. Additionally, the aromatic ring participates in cation-π interactions with positively charged ions, a potent non-covalent interaction particularly effective in water. According to the Van Damme et al. different advancing and receding contact angles are often observed when dynamic contact angles of polymers at the air-water interface are measured .