Cambridge team builds $10 optical sensor for wearable diagnostics

· Science · United Kingdom

Researchers at Cambridge have created a $10 optical sensor that delivers the precision of laboratory equipment in a device small enough for wearable technology, according to ScienceDaily. In tests the sensor identified foods, plastics and medicines with 100% accuracy, and it also demonstrated the ability to monitor blood glucose, alcohol and other markers. The work points to a route toward putting laboratory-grade chemical analysis onto the wrist rather than in a bench instrument, a long-standing goal for wearable health monitoring. If the approach scales, cheap optical sensing could move metabolic and substance monitoring out of clinics and into continuous, consumer-grade devices, with implications for diabetes care and beyond. The report does not specify a commercialization timeline.

Why it matters：Very cheap, lab-grade optical sensing could shift health monitoring from clinics to wearables and open a mass market for continuous biochemical tracking.

Key points

  • The sensor matched lab-equipment precision in tests.
  • It identified foods, plastics and medicines with 100% accuracy in trials.
  • It also demonstrated blood glucose and alcohol monitoring.

Sources (original reporting)

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