Method of making a platform for use in a sensor in a microfluidic device
First Claim
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1. A method of forming a platform for use in a microfluidic sensor comprising:
- selecting a polymeric film;
laser drilling at least one frustoconical pore in said film such that said pore has a large diameter portion and a small diameter portion, said small diameter portion facing an analyte containing fluid when the microfluidic sensor is in use;
depositing a layer of metal suitable for use as an electrode over a wall of said pore; and
depositing a membrane capable of detecting an analyte in said pore over said metal layer.
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Abstract
A method is provided for constructing a platform for use in a sensor in a microfluidic device. The method may include the steps of selecting a polymeric film, laser drilling at least one frustoconical pore in the film, depositing a layer of metal suitable for use as an electrode over a wall of the pore, and depositing a membrane capable of detecting an analyte in the pore over the metal layer. The method may also include the additional step of forming a diffusion limiting layer in the pore at an exit end of the pore before depositing the membrane capable of detecting an analyte.
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Citations
10 Claims
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1. A method of forming a platform for use in a microfluidic sensor comprising:
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selecting a polymeric film;
laser drilling at least one frustoconical pore in said film such that said pore has a large diameter portion and a small diameter portion, said small diameter portion facing an analyte containing fluid when the microfluidic sensor is in use;
depositing a layer of metal suitable for use as an electrode over a wall of said pore; and
depositing a membrane capable of detecting an analyte in said pore over said metal layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification