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Regensburg 2016 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 56: Wetting, Nano- and Microfluidics II (joint session CPP/DY)

DY 56.7: Talk

Thursday, March 10, 2016, 16:30–16:45, H42

Light-driven delivery and release of materials using liquid marbles — •Maxime Paven1, Hiroyuki Mayama2, Takafumi Sekido3, Hans-Jürgen Butt1, Yoshinobu Nakamura3,4,5, and Syuji Fujii411Physics at Interfaces MaxPlanck Institute for Polymer Research Ackermannweg 10, D-55128 Mainz, Germany — 22Department of Chemistry, Asahikawa Medical University 2-1-1-1 Midorigaoka-Higashi, Asahikawa 078-8510, Japan — 33Division of Applied Chemistry, Graduate School of Engineering Osaka Institute of Technology 5-16-1 Omiya, Asahi-ku, Osaka, 535-8585, Japan. — 44Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology 5-16-1 Omiya, Asahi-ku, Osaka, 535-8585, Japan. — 55Nanomaterials Microdevices Research Center Osaka Institute of Technology 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan.

Remote control of the locomotion of small objects is a challenge in itself and may also allow for the stimuli control of entire systems. Here, we describe how encapsulated liquids, referred to as liquid marbles, can be moved on a water surface with a simple near-infrared (NIR) laser or sunlight. Using light rather than pH or temperature as an external stimulus allows for the control of the position, area, timing, direction and velocity of delivery. Our approach makes it possible to not only transport the materials encapsulated within the liquid marble but also to release them at a specific place and time, as controlled by external stimuli. Furthermore, we show that liquid marbles can work as light-driven towing engines to push or pull objects.

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