Carbohydrate-activated nanofluidic diode


We developed a nanopipette that can detect sugars in solution. We achieved this by functionalizing the nanopipette opening with a polyelectrolyte bearing boronic acid moieties.  The functionalized nanopipette acts as a fluidic diode where the rectification of the ionic current flowing through the nanopipette depends on the concentraiton of sugars in solution.

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