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Updated: May 24, 2026

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation
Published on: August 28, 2017
Self-propelled motion of a fluid droplet under chemical reaction
S Yabunaka1, T Ohta, N Yoshinaga
1Department of Physics, Kyoto University, Kyoto 606-8502, Japan. yabunaka@scphys.kyoto-u.ac.jp
Abstract:
We study self-propelled dynamics of a droplet due to a Marangoni effect and chemical reactions in a binary fluid with a dilute third component of chemical product which affects the interfacial energy of a droplet. The equation for the migration velocity of the center of mass of a droplet is derived in the limit of an infinitesimally thin interface. We found that there is a bifurcation from a motionless state to a propagating state of droplet by changing the strength of the Marangoni effect.
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