Fast, active droplet interaction: coalescence and reactive mixing controlled by electrowetting on a superhydrophobic surface.
basic_science · Level V
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- Record sourced from PubMed, PMID 23224020.
- Also identified by DOI 10.1039/c2lc41193h.
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Abstract
A novel electrowetting-on-dielectrics (EWOD) device in open planar geometry allows probing of droplet mixing on a superhydrophobic substrate under quasi contact-free conditions. We demonstrate a droplet-based microreactor with integrated convective-flow mixing for the reactive-mixing of CaCl(2)/Na(2)CO(3) solutions. The device provides unique conditions for scattering, spectroscopy and imaging probes requiring an unobstructed droplet-access.