Journal
LANGMUIR
Volume 25, Issue 24, Pages 14195-14199Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la9014898
Keywords
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Funding
- National Natural Science Foundation of China [20621401]
- Ministry of Science and Technology of China [2009CB930603, 2009CB623604]
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In this paper, we prepared dual-parallel-channel shape-gradient surfaces, on which water droplets can reversibly and orientedly move between two adjacent pools under the guidance of an external voltage. Furthermore, it is found that the motion speed is governed by several parameters, including bath condition, gradient angle, and the working voltage. In this self-transportation process of water droplets, the external voltage works like a traffic light, which can give moving, stopping, turning and straight-going signals to the Water droplets.
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