Light Driven Fuel-Free Thermocapillary Microswimmers
ORAL
Abstract
Surface tension is a powerful agent for driving biological and artificial micron-sized particles. Surface tension gradients however, typically require a chemical reaction, making a capillary based swimmer fuel dependent. By combining a light absorbing bead with a fluid droplet we made a dimer that is propelled by light, and requires no chemical fuel. The 6 μm swimmers’ motility records over 10 μm/s and show good with measured thermocapillary and hydrodynamic parameters. We discuss the swimmers’ manipulation and interactions.
*M.Y.B.Z. acknowledges support by the Center for Bio Inspired Energy Sciences, an Energy Frontier Research Center funded by the DOE, Office of Sciences, Basic Energy Sciences, under award DE-SC0000989 (Paul M. Chakin)
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Presenters
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Matan Yah Ben Zion
- New York University