Danger Dust

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Bampot

Ultrasensitive nanoscale sensors can identify lung cancer through exhaled isoprene (phys.org)

submitted 1 month ago by Bampot to c/dangerdust

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People breathe out many gases, such as water vapor and carbon dioxide, as well as other airborne compounds. Researchers have determined that declines in one exhaled chemical—isoprene—can indicate the presence of lung cancer. However, to detect such small shifts, a sensor would need to be highly sensitive, capable of detecting isoprene levels in the parts-per-billion (ppb) range. It would also need to differentiate isoprene from other volatile chemicals and withstand breath's natural humidity.

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