Nanostructured Surface with Tunable Contact Angle Hysteresis for Constructing In Vitro Tumor Model

Figure 3

(a) The design of substrates with superhydrophobic background and CAH-controlled patterns (top view). The schematic of dip-coating process of substrates (side view). (b) Sizes of water droplets captured after dip-coating the substrates with various CAH.

(a)

(b)