Microfluidic device and method for transporting electrically charged substances through a microchannel of a microfluidic device
First Claim
1. ) A microfluidic device, comprising an inlet reservoir, for receiving electrically charged substances dispersed in a fluid medium, and a microfluidic circuit fluidly coupled to said inlet reservoir, characterized in that it comprises an electric transport device, arranged along said microfluidic circuit for moving said electrically charged substances along said microfluidic circuit away from said inlet reservoir.
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Abstract
A microfluidic device includes an inlet reservoir, for receiving electrically charged substances dispersed in a fluid medium, a microfluidic circuit in fluidic connection with the inlet reservoir, and an electric transport device for moving the electrically charged substances along the microfluidic circuit. The electric transport device comprises a number of conductive regions arranged along the microfluidic circuit and separated by regions of opposite type, said regions of conductivity electrically connected to a voltage source for providing pulsed voltage that carries charged substances along the microfluidic circuit.
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Citations
23 Claims
- 1. ) A microfluidic device, comprising an inlet reservoir, for receiving electrically charged substances dispersed in a fluid medium, and a microfluidic circuit fluidly coupled to said inlet reservoir, characterized in that it comprises an electric transport device, arranged along said microfluidic circuit for moving said electrically charged substances along said microfluidic circuit away from said inlet reservoir.
- 8. ) A method for moving electrically charged substances dispersed in a fluid medium through a microfluidic circuit of a microfluidic device, comprising the step of providing an electric field within said microfluidic circuit, a component of said electric field being directed substantially parallel to an axis of said microfluidic circuit and having uniform orientation at least in a region of said a microfluidic circuit.
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16. ) A microfluidic device, comprising:
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a) a semiconductor body;
b) an inlet reservoir in said semiconductor body, for receiving a biological sample including an electrically charged molecule;
c) a detection chamber in said semiconductor body;
d) a microfluidic circuit fluidly coupled to said inlet reservoir and to said detection chamber and including one or more processing chambers;
e) an electric transport device comprising a plurality of conductive regions arranged sequentially and adjacent said microfluidic circuit;
f) a voltage source electrically connected to said conductive regions for providing a pulsed voltage to move said electrically charged molecule along said microfluidic circuit. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification