Wireless CMOS Biosensor
First Claim
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1. A system for measuring a biological sample, the system comprising:
- a sensor which provides an electrical output;
an analog to digital converter in electrical communication with said sensor for converting said output into a digital signal, wherein at least said sensor and said analog to digital converter form a CMOS circuit; and
a processor for processing said digital signal.
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Abstract
System and methods for detection and measurement of interactions in microarrays or within a human body are described. The system includes a CMOS sensor which can be placed in a fluidic environment, and is capable of measuring DNA interactions and protein binding kinetics, as well as cellular interactions and signals within the body. The sensor can be placed in close proximity with the sample and eliminates the need for optics, and in some embodiments is a wireless device.
24 Citations
53 Claims
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1. A system for measuring a biological sample, the system comprising:
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a sensor which provides an electrical output;
an analog to digital converter in electrical communication with said sensor for converting said output into a digital signal, wherein at least said sensor and said analog to digital converter form a CMOS circuit; anda processor for processing said digital signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A sensor for identifying an interaction in a microarray, the sensor comprising:
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a pixel array of photodiodes, wherein a size of each pixel of said pixel array corresponds to said microarray; and an outer layer substantially surrounding said pixel array, said outer layer providing a fluid barrier between electrical components of said sensor and said biological sample. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method for measuring a sample, comprising:
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providing a wireless CMOS biosensor comprising a pixel array of photodiodes; providing a biological sample; tagging said biological sample with a fluorescent label; placing said biosensor proximal to said biological sample; illuminating said biosensor and said biological sample, wherein said illuminating causes said tagged biological sample to emit photons; converting said photons into an electrical signal using said CMOS biosensor; and wirelessly receiving said electrical signal, said electrical signal being representative of an amount of said tagged biological sample. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53)
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Specification