Substance detection device and method

摘要

Devices and methods are employed to detect substances in a medium. The device comprises an electrogenic bacterium that selectively interacts with a substance to produce electrons. A portion of the electrons provides power to the device and a portion of the electrons generates a signal as an indication of the presence of a substance in the medium. The method comprises contacting the electrogenic bacterium of the device with a medium suspected of containing the substance and measuring the signal generated by the electrons.

主权项

1. A device for detecting a substance in a medium, the device comprising an electrogenic bacterium that is genetically modified by genetic engineering or adaptive evolution to selectively interact with the substance to produce electrons wherein a portion of the electrons provides power to the device and wherein a portion of the electrons generates a signal as an indication of the presence of the substance in the medium,
wherein the substance is an analyte or is produced as a result of the presence of the analyte in the medium, the substance being reactive with a substance precursor, the analyte acting to cleave the substance precursor to release the substance.