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Title:
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Sorting of mesoscopic particles driven through periodic potential landscapes
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Author:
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Lacasta Palacio, Ana María; Khoury, M.; Sancho, Jose Maria; Lindenberg, Katja
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri |
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Abstract:
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Sorting of colloidal particles of different sizes is of importance in the transport and
delivery of such particles in biological, materials science, and other technological contexts.
A successful methodology involves the flow of a mixture of particles over designer surfaces presenting a periodic array of traps (optical tweezers) or microfabricated obstacles. The trajectories of the particles over these surfaces deviate from the direction of flow as the particles are attracted (traps) or repelled (obstacles) by the features of the landscape.
The deviation of the particles from that of the flow depends on particle size (or on some
other particle characteristic) and hence the particles can be sorted according to trajectory direction. On the basis of extensive numerical simulations, we present a unified view of these methodologies and discuss the effects of system parameters such as the magnitude and direction of the flow on the sorting efficacy. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Física
-Àrees temàtiques de la UPC::Matemàtiques i estadística
-Condensed matter
-Sorting
-Colloidal particles
-Periodic potential landscapes
-Nonlinear dynamics
-Física aplicada
-Col·loides |
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Rights:
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Document type:
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Article - Draft
Article |
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Published by:
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World Scientific Publishing
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