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Reconfigurable engineered motile semiconductor microparticles.

Publication ,  Journal Article
Ohiri, U; Shields, CW; Han, K; Tyler, T; Velev, OD; Jokerst, N
Published in: Nature communications
May 2018

Locally energized particles form the basis for emerging classes of active matter. The design of active particles has led to their controlled locomotion and assembly. The next generation of particles should demonstrate robust control over their active assembly, disassembly, and reconfiguration. Here we introduce a class of semiconductor microparticles that can be comprehensively designed (in size, shape, electric polarizability, and patterned coatings) using standard microfabrication tools. These custom silicon particles draw energy from external electric fields to actively propel, while interacting hydrodynamically, and sequentially assemble and disassemble on demand. We show that a number of electrokinetic effects, such as dielectrophoresis, induced charge electrophoresis, and diode propulsion, can selectively power the microparticle motions and interactions. The ability to achieve on-demand locomotion, tractable fluid flows, synchronized motility, and reversible assembly using engineered silicon microparticles may enable advanced applications that include remotely powered microsensors, artificial muscles, reconfigurable neural networks and computational systems.

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Published In

Nature communications

DOI

EISSN

2041-1723

ISSN

2041-1723

Publication Date

May 2018

Volume

9

Issue

1

Start / End Page

1791
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Ohiri, U., Shields, C. W., Han, K., Tyler, T., Velev, O. D., & Jokerst, N. (2018). Reconfigurable engineered motile semiconductor microparticles. Nature Communications, 9(1), 1791. https://doi.org/10.1038/s41467-018-04183-y
Ohiri, Ugonna, C Wyatt Shields, Koohee Han, Talmage Tyler, Orlin D. Velev, and Nan Jokerst. “Reconfigurable engineered motile semiconductor microparticles.Nature Communications 9, no. 1 (May 2018): 1791. https://doi.org/10.1038/s41467-018-04183-y.
Ohiri U, Shields CW, Han K, Tyler T, Velev OD, Jokerst N. Reconfigurable engineered motile semiconductor microparticles. Nature communications. 2018 May;9(1):1791.
Ohiri, Ugonna, et al. “Reconfigurable engineered motile semiconductor microparticles.Nature Communications, vol. 9, no. 1, May 2018, p. 1791. Epmc, doi:10.1038/s41467-018-04183-y.
Ohiri U, Shields CW, Han K, Tyler T, Velev OD, Jokerst N. Reconfigurable engineered motile semiconductor microparticles. Nature communications. 2018 May;9(1):1791.

Published In

Nature communications

DOI

EISSN

2041-1723

ISSN

2041-1723

Publication Date

May 2018

Volume

9

Issue

1

Start / End Page

1791