Dynamics of Marangoni-driven elliptical Janus particlesThe motion of camphor-infused Janus particles at the air-water interface is studied experimentally and numerically.The particle dynamics, driven by Marangoni stresses, is governed by particle shape.While circular particles exhibit straight-line motion, more elongated particles follow circular trajectories, with radii and angular velocities set by their geometry.A theoretical model that couples camphor dynamics with particle transport explains how chemical properties determine the steady-state behavior.
A 2026 study studied this question.