2026-04-17T06:11:25Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/1278312025-12-04T21:01:59Zcom_2072_1057col_2072_478796col_2072_478917
RECERCAT
author
Hernández Navarro, Sergi
author
Tierno, Pietro
author
Ignés i Mullol, Jordi
author
Sagués i Mestre, Francesc
2019-02-04T08:25:18Z2019-02-04T08:25:18Z2015-07-242019-02-04T08:25:18Z
We demonstrate several examples of driving and steering of colloids when dispersed in nematic liquid crystals. The driving mechanism is based on the principle of nonlinear electrophoresis which is mediated by the asymmetry in the structure of the defects that the inclusions generate in the host elastic matrix. The steering mechanism originates in the photoactivation of the anchoring conditions of the nematic liquid crystal on one of the enclosing plates. As experimental realizations we first review a scenario of water microdroplets being phoretically transported for cargo release and chemical reaction. Steering is illustrated in terms of the reconfigurable assembly of colloidal particles, either in the form of asters or rotating-mills, commanded by predesigned patterns of illumination.
(c) EDP Sciences, 2015 info:eu-repo/semantics/openAccess
Cristalls líquids
Col·loides
Electroforesi
Liquid crystals
Colloids
Electrophoresis
Liquid-crystal enabled electrophoresis: scenarios for driving and reconfigurable assembling of colloids
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion