Figure 4
From: A magnet-actuated biomimetic device for isolating biological entities in microwells
Schematic of mechanism of wetting in (A) hydrophilic microwells and (B) hydrophobic microwells, where θE is the equilibrium contact angle and φ is the angle made by the tangent at the highest point of cavity. Experimental results with DI water (C) showing the dynamics of water-air interface (yellow dashed line) and water dripping in hydrophilic microwells, and (D) pinning of contact line in hydrophobic microwells at different time intervals (scale bar −50 μm).
