Opaque PDMS (Silicone rubber)

1 inch wide x 1 inch long

Circular pillar micro structures

Diameter = 5 microns

Edge-to-edge spacing = 5 microns

Height = 5 microns

Lattice: Hexagonal Close Packed (HCP)

Super Hydrophobic (Cassie-Baxter State)

6,500,000 micro pillars

SEM Image

Used in

1) This publication Fig 5 from A*STAR Singapore

2) This publication from NCA&T

3) This publication from Iowa State

4) This publication from Duke University