Colloidal caterpillars for cargo transportation

被引：43

作者：

Sasaki, Yuji ^{[1
]}

Takikawa, Yoshinori ^{[1
]}

Jampani, V. S. R. ^{[2
]}

Hoshikawa, Hikaru ^{[1
]}

Seto, Takafumi ^{[1
]}

Bahr, Christian ^{[2
]}

Herminghaus, Stephan ^{[2
]}

Hidaka, Yoshiki ^{[3
]}

Orihara, Hiroshi ^{[1
]}

机构：

[1] Hokkaido Univ, Fac Engn, Div Appl Phys, Kita Ku, Sapporo, Hokkaido 0608628, Japan

[2] Max Planck Inst Dynam & Self Org MPIDS, D-37077 Gottingen, Germany

[3] Kyushu Univ, Fac Engn, Dept Appl Quantum Phys & Nucl Engn, Fukuoka 8190395, Japan

来源：

SOFT MATTER | 2014年 / 10卷 / 44期

关键词：

LIQUID; CRYSTALS;

D O I：

10.1039/c4sm01354a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Tunable transport of tiny objects in fluid systems is demanding in diverse fields of science such as drug delivery, active matter far from equilibrium, and lab-on-a-chip applications. Here, we report the directed motion of colloidal particles and self-assembled colloidal chains in a nematic liquid crystal matrix using electrohydrodynamic convection (EHC) rolls. The asymmetric distortion of the molecular orientation around the particles results - for single particles - in a hopping motion from one EHC roll to the next and - for colloidal chains - in a caterpillar-like motion in the direction perpendicular to the roll axes. We demonstrate the use of colloidal chains as microtraction engines for the transport of various types of microcargo.

引用

页码：8813 / 8820

页数：8