Dynamic Assembly of Small Parts in Vortex–Vortex Traps Established within a Rotating Fluid

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Title
Dynamic Assembly of Small Parts in Vortex–Vortex Traps Established within a Rotating Fluid
Author(s)
Taehoon Lee; Yaroslav Sobolev; Olgierd Cybulski; Bartsoz A. Grzybowski
Publication Date
2019-07
Journal
ADVANCED MATERIALS, v.31, no.32, pp.1902298 -
Publisher
WILEY-V C H VERLAG GMBH
Abstract
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, WeinheimStable, purely fluidic particle traps established by vortex flows induced within a rotating fluid are described. The traps can manipulate various types of small parts, dynamically assembling them into high-symmetry clusters, cages, interlocked architectures, jammed colloidal monoliths, or colloidal formations on gas bubbles. The strength and the shape of the trapping region can be controlled by the strengths of one or both vortices and/or by the system's global angular velocity. The system exhibits a range of interesting dynamical behaviors including a Hopf-bifurcation transition between equilibrium-point trapping and the so-called limit cycle in which the particles are confined to circular orbits. Theoretical considerations indicate that these vortex–vortex traps can be further miniaturized to manipulate objects with sizes down to ≈10 µm
URI
https://pr.ibs.re.kr/handle/8788114/6062
ISSN
0935-9648
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > Journal Papers (저널논문)
Files in This Item:
Lee_et_al-2019-Advanced_Materials.pdfDownload

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