“…Even after immersing the surface for 1 h into the 10% cow blood plasma sample, the CA only dropped two Langmuir XXXX, XXX, XXX−XXX degrees to 150°( Figure 2H). We rationalize this excellent antifouling by the combination of the superhydrophobicity and the smoothness of this surface that is apparent from the small sliding angle 50 (6°) and the low contact angle hysteresis (8°), 52 both of which are also favorable for releasing any weakly adhered fouling proteins. 53,54 In contrast, on the flat PMAF17 brush modified surface the static water CA decreases from 118°t o 109°upon interaction with BSA and to 94°with blood plasma, illustrating that some protein adsorption happens on this surface ( Figure 2B, B1, and G).…”