Embossing of microfluidic sensors
First Claim
1. A sensor comprising a first organic substrate having a microfluidic channel and an electronic sensing device located therein, and a second substrate bonded to the first substrate so as to close the microfluidic channel, wherein a conducting part of the electronic sensing device is exposed at the surface of the microfluidic channel, and said conducting part comprises poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulphonic acid).
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Abstract
An electrochemical sensor and method of its production comprising a microfluidic channel and an electronic sensing device on a first substrate, and a second substrate bonded to the first substrate so as to close the microfluidic channel, wherein a functional part of the electronic sensing device is exposed at the surface of the microfluidic channel and wherein the microfluidic channel is formed by embossing. In one embodiment the electronic device is a vertical-channel field-effect transistor.
22 Citations
14 Claims
- 1. A sensor comprising a first organic substrate having a microfluidic channel and an electronic sensing device located therein, and a second substrate bonded to the first substrate so as to close the microfluidic channel, wherein a conducting part of the electronic sensing device is exposed at the surface of the microfluidic channel, and said conducting part comprises poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulphonic acid).
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3. A method comprising:
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defining in a single operation a microfluidic channel, and source and drain electrodes of a field-effect transistor, forming over the source and drain electrodes, an active semiconducting layer, a gate dielectric layer and a gate electrode, receiving a flow of liquid or gas in a portion of said microfluidic channel, and sensing a property of said liquid or gas. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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10. A method comprising:
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forming a body comprising an electrically conductive layer; embossing the body to define in a single operation a microfluidic channel and source and drain electrodes of a field-effect transistor, the source and drain electrodes being exposed at the surface of the channel; forming over the source and drain electrodes, an active semiconducting layer, a dielectric layer and a gate electrode; receiving a flow of a liquid or gas in at least a portion of said channel; and sensing a property of said liquid or gas. - View Dependent Claims (11, 12, 13, 14)
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Specification