Sensors having gap based sensing devices and methods of making and using the same
First Claim
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1. A sensor, comprising:
- at least one sensing device comprising a first electrode and a second electrode, and a gap defined as a distance between one or more facing inner surfaces of the first and second electrodes, wherein the gap distance at least in part determines a threshold of one or more sensed parameters; and
an antenna in operative association with the sensing device, wherein the first electrode, the second electrode, or both, have one or more surfaces on which a dielectric material is provided that is adapted to prevent the electrode from shorting out when exposed to a conductive fluid.
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Abstract
A sensor is provided. The sensor comprises at least one sensing device comprising a first electrode and a second electrode, and a gap defined as a distance between one or more facing inner surfaces of the first and second electrodes, wherein the gap distance at least in part determines a threshold of one or more sensed parameters, and an antenna in operative association with the sensing device.
28 Citations
26 Claims
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1. A sensor, comprising:
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at least one sensing device comprising a first electrode and a second electrode, and a gap defined as a distance between one or more facing inner surfaces of the first and second electrodes, wherein the gap distance at least in part determines a threshold of one or more sensed parameters; and an antenna in operative association with the sensing device, wherein the first electrode, the second electrode, or both, have one or more surfaces on which a dielectric material is provided that is adapted to prevent the electrode from shorting out when exposed to a conductive fluid.
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2. A sensor, comprising:
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at least one sensing device comprising a first electrode and a second electrode, and a gap defined as a distance between one or more facing inner surfaces of the first and second electrodes, wherein the gap distance at least in part determines a threshold of one or more sensed parameters; and an antenna in operative association with the sensing device, wherein the sensor is disposed on a silica surface that is free of any surface modifications to enable nonspecific binding of molecules, molecular assemblages, or both.
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3. A radio frequency based sensor, comprising:
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a sensing gap defined by two or more electrodes; and an antenna in operative association with the sensing gap and the electrodes, wherein a sensing signal is identified by appearance or disappearance of a digital identification through a digital reader/writer. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A radio frequency based sensor, comprising:
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a sensing gap defined by two or more electrodes; and an antenna in operative association with the sensing gap and the electrodes, wherein a sensing signal is identified by appearance or disappearance of a digital identification through a digital reader/writer and magnitude of the sensing signal is written onto the memory chip along with the time associated with this sensor magnitude.
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22. A radio frequency based sensor, comprising:
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a sensing gap defined by two or more electrodes; and an antenna in operative association with the sensing gap and the electrodes, wherein a sensing signal from a sensor attached to the analog input of the memory chip is written onto the memory chip along with the time associated with this sensor signal.
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23. A method of making a sensor, comprising:
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providing an antenna having one or more turns; forming a sensing gap comprising first and second electrodes and defined by a distance between one or more facing inner surfaces of the first and second electrodes, wherein the gap distance at least in part determines a threshold of one or more sensed parameters, and wherein the sensing gap is in operative association with the antenna, wherein forming the first electrode and the second electrode comprises self assembly, roll-to-roll process, lithography, liquid deposition, milling, or combinations thereof.
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24. A sensor, comprising:
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at least one sensing device comprising a first electrode and a second electrode, and a gap defined as a distance between one or more facing inner surfaces of the first and second electrodes, wherein the gap distance at least in part determines a threshold of one or more sensed parameters, wherein the first electrode, the second electrode, or both, have one or more surfaces on which a dielectric material is provided that is adapted to prevent the electrode from shorting out when exposed to a conductive fluid; and an antenna in operative association with the sensing device.
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25. A sensor, comprising:
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at least one sensing device comprising a first electrode and a second electrode, and a gap defined as a distance between one or more facing inner surfaces of the first and second electrodes, wherein the gap distance at least in part determines a threshold of one or more sensed parameters; and an antenna in operative association with the sensing device, wherein the sensor is disposed on a silica surface that is free of any surface modifications to enable nonspecific binding of molecules, molecular assemblages, or both.
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26. A radio frequency based sensor, comprising:
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a sensing gap defined by two or more electrodes; and an antenna in operative association with the sensing gap and the electrodes, wherein a sensing signal is identified by appearance or disappearance of a digital identification through a digital reader/writer.
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Specification