Diagnostic and sample preparation devices and methods
First Claim
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1. A device for analyzing a biological sample, the device comprising:
- a sample receiving zone configured to receive a biological sample, the biological sample including nucleic acids;
a sample extraction zone in fluid communication with the sample receiving zone and configured to receive the biological sample from the sample receiving zone, the sample extraction zone including a plurality of electrodes in electrical communication with an electrical source and configured to fragment the nucleic acids into a plurality of fragmented nucleic acids when a first electrical signal is applied to the plurality of electrodes;
a signal control unit configured to determine an overall treatment time of the first electrical signal applied to the plurality of electrodes based on a desired average length in bases of the plurality of fragmented nucleic acids; and
a sample analysis zone in fluid communication with the sample extraction zone and including a sensing electrode and a reference electrode for analyzing the biological sample.
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Abstract
Contemplated methods and devices are drawn to preparation and analysis of analytes from biological samples. In a preferred embodiment the analytes are nucleic acids that are both released from biological compartments present in the sample and fragmented through the use of a voltage potential applied to a pair of electrodes. The nucleic acids thus prepared are subsequently characterized.
57 Citations
9 Claims
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1. A device for analyzing a biological sample, the device comprising:
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a sample receiving zone configured to receive a biological sample, the biological sample including nucleic acids; a sample extraction zone in fluid communication with the sample receiving zone and configured to receive the biological sample from the sample receiving zone, the sample extraction zone including a plurality of electrodes in electrical communication with an electrical source and configured to fragment the nucleic acids into a plurality of fragmented nucleic acids when a first electrical signal is applied to the plurality of electrodes; a signal control unit configured to determine an overall treatment time of the first electrical signal applied to the plurality of electrodes based on a desired average length in bases of the plurality of fragmented nucleic acids; and a sample analysis zone in fluid communication with the sample extraction zone and including a sensing electrode and a reference electrode for analyzing the biological sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification