Gallardo, Benedict S; Gupta, Vinay K; Eagerton, Franklin D; Jong, Lana I; Craig, Vincent; Shah, Rahul; Abbott, Nicholas L
Electrochemical methods were combined with redox-active surfactants to actively control the motions and positions of aqueous and organic liquids on millimeter and smaller scales. Surfactant species generated at one electrode and consumed at another were used to manipulate the magnitude and direction of spatial gradients in surface tension and guide droplets of organic liquids through simple fluidic networks. Solid microparticles could be transported across unconfined surfaces. Electrochemical...[Show more]
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