10/13/2026
A patch smaller than a penny could one day save the lives of people experiencing a fentanyl overdose – even when no one else is there to help.
Researchers in Virginia Tech’s Department of Biological Systems Engineering have developed a wearable microneedle patch that can detect fentanyl in the body and automatically release naloxone, a medication that can reverse an opioid overdose. The technology could change how opioid overdoses are treated by making lifesaving intervention possible without relying on a bystander.
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