Water droplets' internal fluidity during horizontal motion on a superhydrophobic surface with an external electric field

Langmuir : the ACS Journal of Surfaces and Colloids
Munetoshi SakaiAkira Fujishima

Abstract

On a superhydrophobic surface, the internal fluidity of water droplets with different volumes (15, 30 microL) and their horizontal motion in an external electric field were evaluated using particle image velocimetry (PIV). For driving of water droplets on a superhydrophobic coating between parallel electrodes, it was important to place them at appropriate positions. Droplets moved with slipping. Small droplets showed deformation that is more remarkable. Results show that the dielectrophoretic force induced the initial droplet motion and that the surface potential gradient drove the droplets after reaching the middle point between electrodes.

References

May 17, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Munetoshi SakaiAkira Nakajima
May 5, 2007·The Review of Scientific Instruments·Munetoshi SakaiAkira Nakajima

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Citations

Feb 16, 2013·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Carlos E ColosquiIoannis G Kevrekidis
Jul 9, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Nam-Trung NguyenSay-Hwa Tan
Dec 15, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·S A KulinichX W Du
Sep 25, 2019·ACS Applied Materials & Interfaces·Ana Daysi Ruvalcaba-CardenasFrancisco J Tovar-Lopez
Mar 7, 2018·ACS Applied Materials & Interfaces·Xiaojing SuXingrong Zeng

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