摘要:
A computer designed nanoengineered membrane for separation of dissolved species. One embodiment provides an apparatus for treatment of a fluid that includes ions comprising a microengineered porous membrane, a system for producing an electrical charge across the membrane, and a series of nanopores extending through the membrane. The nanopores have a pore size such that when the fluid contacts the membrane, the nanopores will be in a condition of double layer overlap and allow passage only of ions opposite to the electrical charge across the membrane.
摘要:
A fuel cell system having a fuel cell, the fuel cell having a membrane-electrode assembly; a fuel reservoir containing a liquid fuel; a conduit coupling the fuel reservoir to the fuel cell; and an electrokinetic fuel pump coupled to the conduit, the electrokinetic fuel pump having a plurality of electrodes; wherein the electrokinetic fuel pump moves fuel from the fuel reservoir through the conduit to the fuel cell; and wherein the electrokinetic fuel pump electrodes do not deleteriously affect the performance of the membrane-electrode assembly.
摘要:
A heat transfer system comprising a primary heat exchanger for receiving heat from a heat source; a secondary heat exchanger for exhausting heat to a heat sink; a conduit connecting the primary heat exchanger and the secondary heat exchanger; and an electrokinetic pump for pumping a heat exchange fluid between the primary heat exchanger and the secondary heat exchanger through the conduit.
摘要:
In accordance with the present invention, stable electroosmotic flow systems and methods for designing the same are disclosed. The invention provides electroosmotic flow systems comprising electroosmotic flow elements, including bridge elements, that have matching flux ratios, i.e., when two or more elements of an electroosmotic flow system are in fluidic and electrical communication at a junction, the flux ratio for each of the elements is selected so that the difference in flux ratios system adjacent two elements is less than a target value. The invention also provides methods for designing such systems.
摘要:
In accordance with the present invention, stable electroosmotic flow systems and methods for designing the same are disclosed. The invention provides electroosmotic flow systems comprising electroosmotic flow elements, including bridge elements, that have matching flux ratios, i.e., when two or more elements of an electroosmotic flow system are in fluidic and electrical communication at a junction, the flux ratio for each of the elements is selected so that the difference in flux ratios system adjacent two elements is less than a target value. The invention also provides methods for designing such systems.
摘要:
An electrokinetic pump achieves high and low flow rates without producing significant gaseous byproducts and without significant evolution of the pump fluid. A first feature of the pump is that the electrodes in the pump are capacitive with a capacitance of at least 10−4 Farads/cm2. A second feature of the pump is that it is configured to maximize the potential across the porous dielectric material. The pump can have either or both features.
摘要翻译:电动泵实现高和低流速,而不产生显着的气体副产物并且没有泵流体的显着演变。 泵的第一特征是泵中的电极是电容性的,具有至少10 -4欧拉/ cm 2的电容。 泵的第二个特征是其被配置为使跨越多孔介电材料的电势最大化。 泵可以具有两个或两个特征。
摘要:
Methods and apparatus for mixing fluids are provided. The devices and methods operate without moving parts, and generate well-mixed fluids over a broad dynamic range of flow rates. Preferred embodiments include junction-type mixers, bundled mixers, and co-axial mixers. The devices and methods are optimized to produce rapid, accurate gradients to improve associated system throughput and reproducibility.
摘要:
A device for microfluidic control comprising a regulator that is moveable in a conduit where the regulator is a composite polymer formed from a composite mixture comprising a polymerizable precursor and a particulate filler.
摘要:
Methods and apparatus for mixing fluids are provided. The devices and methods operate without moving parts, and generate well-mixed fluids over a broad dynamic range of flow rates. Preferred embodiments include junction-type mixers, bundled mixers, and co-axial mixers. The devices and methods are optimized to produce rapid, accurate gradients to improve associated system throughput and reproducibility.
摘要:
A device for microfluidic control comprising a regulator that is moveable in a conduit where the regulator is a composite polymer formed from a composite mixture comprising a polymerizable precursor and a particulate filler.