Light-Emitting Electrochemical “Swimmers”


  • We acknowledge financial support from the Ministry of Science and Technological Development (Republic of Serbia) and from the French Foreign Ministry (Programme Pavle Savic). Further financial support has been received from CNRS and the Agence Nationale de la Recherche (ANR-09-BLAN-0418; ANR-08-NSCI-008-01).


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Swimmer in the dark: Propulsion of a conducting object is intrinsically coupled with light emission using bipolar electrochemistry. Asymmetric redox activity on the surface of the swimmer (black bead; see picture) causes production of gas bubbles to propel the swimmer in a glass tube with simultaneous electrochemiluminescence (ECL) emission to monitor the progress of the swimmer.