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Brownian Motion of Boomerang Colloidal Particles

We investigate the Brownian motion of boomerang colloidal particles confined between two glass plates. Our experimental observations show that the mean displacements are biased towards the center of hydrodynamic stress (CoH), and that the mean-square displacements exhibit a crossover from short time faster to long time slower diffusion with the short-time diffusion coefficients dependent on the points used for tracking. A model based on Langevin theory elucidates that these behaviors are ascribed to a superposition of two diffusive modes: the ellipsoidal motion of the CoH and the rotational motion of the tracking point with respect to the CoH.

preprint2013arXivOpen access
Ayan ChakrabartyAndrew KonyaFeng WangJonathan V. SelingerKai SunQi-Huo Wei
cond-mat.soft
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Open access6 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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Ayan ChakrabartyAndrew KonyaFeng WangJonathan V. SelingerKai SunQi-Huo Wei

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