Surface-tension-confined droplet microfluidics
Chen Xinlian1, Wu Han1, 2, Wu Jinbo1, †
       

(color online) When the hydrophilic–hydrophobic patterned substrate is immersed in water, an array of microdroplets is formed on the hydrophilic areas while the hydrophobic areas remain dry (effect of discontinuous dewetting). Different geometries of microdroplet arrays are shown (from Ref. [27], Fig. 1 (step 1)).