The protocol aims to investigate the interaction between droplets and super-hydrophobic substrates in the air. This includes calibrating the measurement system and measuring the interaction force at super-hydrophobic substrates with different grid fractions.
Zhuang, S., Zhao, M., Wang, Z., Zhang, L., Huang, Y., Zheng, Y. Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method. J. Vis. Exp. (148), e59539, doi:10.3791/59539 (2019).