Figure 1
From: Path-programmable water droplet manipulations on an adhesion controlled superhydrophobic surface
Superhydrophobic PDMS with micro-pillar arrays for manipulations of water droplet motion.
(a) Schematic illustration of the microfluidic platform that used a local dimple structure to manipulate water droplet motions including moving, mixing and analysis on the suspended PDMS substrate with micro-pillar array. (b) SEM image of a regular micro-pillar arrays (2.5 μm radius, 4 μm height). Scale bar, 5 μm. (c,d) Photographs of water droplets on the surface of the PDMS substrate with micro-pillar arrays. Scale bar, 1 cm. (e) Photograph images showing the excellent stretchability of the PDMS substrate.
