期刊
CHEMISTRY OF MATERIALS
卷 27, 期 14, 页码 4964-4971出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.5b01038
关键词
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资金
- Priority Research Centers Program through the National Research Foundation (NRF) of Korea - Ministry of Education, Science and Technology (MEST) [2009-0093823]
- Midcareer Researcher Program through a NRF - MEST [2014R1A2A2A09053061]
- Tanaka Kikinzoku Kogyo K.K.
Adhesion control of various liquid droplets on a liquid-repellent surface is a fundamental technique in novel open channel microfluidic systems: Herein, we demonstrate reversible liquid droplet adhesion switching on superamphiphobic Pd-decorated Ag dendrites (Pd/Ag dendrites). Although adhesion between liquids and the superamphiphobic Surfaces was extremely low under ambient air, high adhesion was instantly achieved by exposure of the dendrites to 8% hydrogen gas. Transition from low to high adhesion and the reverse case were successfully repeated more than 10 times by switching from atmospheric ambient air to 8% hydrogen gas. This is the first technique that allows real-time reversible adhesion change with various liquid droplets to a surface using gas-induced structural changes and can potentially be used to realize various functions for droplet-based microfluidics.
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