Abstract: A microfabricated filtration membrane including a substrate containing a plurality of micropores, an ion-selective layer, and at least two conductive layers configured to apply a voltage across the micropores. The geometry of the conductive layers matches the geometry of the micropores (or nanopores).

Abstract: A microfabricated filtration membrane including a substrate containing a plurality of micropores, an ion-selective layer, and at least two conductive layers configured to apply a voltage across the micropores. The geometry of the conductive layers matches the geometry of the micropores (or nanopores).

Abstract: A neural prosthetic device is provided that includes one or more ion-selective membranes enabling electrically-controlled local modulation of ion concentrations around a nerve so as to achieve different excitability states of the nerve for electrical stimulation or inhibition of nerve signal propagation.

Abstract: This invention is directed to methods and devices for separating molecules in a sample, based on differences in their isoelectric point (pI). The methods and devices make use of a diffusion potential created in a microfluidic chamber when a buffered solution comprising molecules, which differ in terms of their isoelectric point (pI) values and a second buffer, which differs from the buffered solution in terms of its pH or salt concentration are introduced in the chamber. The diffusion potential, in turn, enables charge-based separation of the molecules. Applications and permutations of the methods and devices are described.

Abstract: The present invention provides a device and methods of use thereof in concentrating a species of interest and/or controlling liquid flow in a device. The methods, inter-alia, make use of a device comprising a fluidic chip comprising a planar array of channels through which a liquid comprising a species of interest can be made to pass with at least one rigid substrate connected thereto such that at least a portion of a surface of the substrate bounds the channels, and an ion-selective membrane is attached to at least a portion of the surface of the substrate, which bounds said channels, or which bounds a portion of a surface of one of said channels. The device comprises a unit to induce an electric field in the channel and a unit to induce an electrokinetic or pressure driven flow in the channel.