Abstract: A method, system, and apparatus are provided for separating molecules, such as biomolecules. The method, system, and apparatus utilize an electrochemical cell having at least to electrodes, one electrode comprising a photo-sensitive material capable of generating a photopotential. Molecules are moved through an electrolyte medium between the at least two electrodes based upon localized photopotentials.

Abstract: A medicated patch for extracting bee/wasp sting toxins from the human skin includes a flexible substrate layer that has a planar adhesive surface and an annular shape. An annular receptacle is centrally registered on the adhesive surface and is permanently affixed to the substrate layer. A poultice is nested on the receptacle and protrudes upwardly and away from the substrate layer such that the poultice becomes effectively intercalated between the human body surface and the substrate layer when a user affixes the medicated patch onto the human body surface. The poultice is housed in an inactive and dry state during pre-application conditions and is adaptable to an active and hydrated state during application procedures such that the poultice can effectively extract toxins from the human body surface.

Abstract: A number of thermal elements are used in a microfluidic device to move or manipulate nano-liter and pico-liter amounts of adsorbed fluid analytes and reagents on the device surface. All of the basic microfluidic operations of transport, merge, subdivide, separate, sort, remove, and capture are provided. A typical device embodiment has a flat or curved surface with the thermal elements located at or near the surface and arranged in any of a number of patterns that make possible specific manipulations of the adsorbed fluids on the surface. The thermal elements may be electrical resistive heaters or Peltier Effect junctions, and are activated by a series of electrical pulses from a control means. The heated or cooled thermal elements produce localized thermal gradients in the surface which in turn induce a surface tension gradient between the adsorbed fluid and the surface, making possible a variety of fluid manipulations on the surface.