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IBM has received US Patent No. 7,491,272, "Confinement of liquids on surfaces." The patent describes a microfluidic device for applying a liquid to a surface. The device includes a chamber for carrying the liquid, as well as an aperture in the chamber for communicating liquid from the chamber to the surface via a conduit having outer sides of limited wetability to the liquid. This device also provides a solution for confining liquids to defined areas of a surface without involving physical seals and additionally permits moving the device and confined liquid on the surface.

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