Extended Data Fig. 1: Substrate wettability used in existing droplet microfluidics.
From: Acousto-dewetting enables droplet microfluidics on superhydrophilic surfaces
Substrates with hydrophobicity, even super-hydrophobicity, are preferential to the reported droplet microfluidics. So far, only the electro-dewetting based droplet microfluidics is based on hydrophilic surface, but it is limited by the addition of surfactant to liquids and specific substrates.
