First Liquid Lens Utilizing Electrowetting

De wetting of the gold by electrochemical desorption of the SAM at the 3-phase contact line 

Behavior of drop of HDT on gold surface at 0 V (left) and at -5.7 V (right) compared with silver wire pseudoreference in 100 mM sodium perchlorate electrolyte solution. At 0 V, the HDT reacted with the gold surface and formed a monolayer wet by the HDT liquid. At -5.7 V, the monolayer reductively desorbed and the drop of HDT retracted. (Source Gorman, C.B., H.A. Biebuyck, and G.M. Whitesides. 1995. Langmuir, 11(6), 2242-2246. With permission.) 

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