G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/00 (2006.01)
Patent
CA 2595840
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 microchannels, which are linked to nanochannels, whereby induction of an electric field in the nanochannel results in ion depletion in the linkage region between the microchannel and nanochannel, and a space charge layer is formed within the microchannel, which provides an energy barrier for said species of interest which enables its concentration in a region in the microchannel.
L'invention porte sur un dispositif électrocinétique de concentration et ses procédés d'utilisation permettant de concentrer une substance d'intérêt et/ou de réguler l'écoulement d'un liquide dans un dispositif. Lesdits procédés utilisent entre autres un dispositif présentant des microcanaux reliés à des nanocanaux et la production d'un champ électrique dans les nanocanaux entraînant un appauvrissement en ions dans la zone de liaison entre les microcanaux et les nanocanaux et la formation dans les microcanaux d'une couche de charge d'espace constituant pour lesdites substances d'intérêt une barrière de potentiel permettant leur concentration dans la zone des microcanaux.
Han Jogyoon
Wang Ying-Chih
Fetherstonhaugh & Co.
Massachusetts Institute Of Technology
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