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Langmuir. 2011 Jan 4;27(1):7-10. doi: 10.1021/la103653p. Epub 2010 Dec 3.

Janus droplets: liquid marbles coated with dielectric/semiconductor particles.

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  • 1Ariel University Center of Samaria, The Research Institute, Applied Physics Department, POB 3, Ariel 40700, Israel.


The manufacturing of water droplets wrapped with two different powders, carbon black (semiconductor) and polytetrafluoroethylene (dielectric), is presented. Droplets composed of two hemispheres (Janus droplets) characterized by various physical and chemical properties are reported first. Watermelon-like striped liquid marbles are reported. Janus droplets remained stable on solid and liquid supports and could be activated with an electric field.

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