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Implant that monitors the levels of medication in the bloodstream

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    An implantable device able to provide a real time reading of the amount of medication in a person's bloodstream could allow doctors to fine-tune medication doses for each individual patient.
    The microfluidic device will feature a central chamber lined with gold electrodes with DNA strands extending from them. These strands, called aptamers, will be set to recognize specific drug molecules as the blood moves through the chamber. As the molecules of the target drug flow through the device, the aptamer will strand wrap around them, which will cause the strand to send electrons to its electrodes and produce a small current. This current will be read by a computer to determine how much of the drug is present in the bloodstream.
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