Electrochemically induced actuation of liquid metal marbles

Tang, Shi-Yang, Sivan, Vijay, Khoshmanesh, Khashayar, O'Mullane, Anthony P., Tang, Xinke, Gol, Berrak, Eshtiaghi, Nicky, Lieder, Felix, Petersen, Phred, Mitchell, Arnan, & Kalantar-zadeh, Kourosh (2013) Electrochemically induced actuation of liquid metal marbles. Nanoscale, 5(13), pp. 5949-5957.

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Abstract

Controlled actuation of soft objects with functional surfaces in aqueous environments presents opportunities for liquid phase electronics, novel assembled super-structures and unusual mechanical properties. We show the extraordinary electrochemically induced actuation of liquid metal droplets coated with nanoparticles, so-called “liquid metal marbles”. We demonstrate that nanoparticle coatings of these marbles offer an extra dimension for affecting the bipolar electrochemically induced actuation. The nanoparticles can readily migrate along the surface of liquid metals, upon the application of electric fields, altering the capacitive behaviour and surface tension in a highly asymmetric fashion. Surprising actuation behaviours are observed illustrating that nanoparticle coatings can have a strong effect on the movement of these marbles. This significant novel phenomenon, combined with unique properties of liquid metal marbles, represents an exciting platform for enabling diverse applications that cannot be achieved using rigid metal beads.

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39 citations in Scopus
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41 citations in Web of Science®

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ID Code: 64339
Item Type: Journal Article
Refereed: Yes
DOI: 10.1039/C3NR00185G
ISSN: 2040-3364
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 18 Nov 2013 02:56
Last Modified: 18 Nov 2013 22:35

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