Story perspectives

Smartphone Biosensor Revolutionizes Cortisol Testing for Stress

8/28/2025

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Summary

Story summary

A new protein-based biosensor measures cortisol levels via smartphone, improving stress testing accessibility.
Developed by Andy Yeh at UC Santa Cruz, the sensor emits light when binding to cortisol for accurate readings.
This method offers greater sensitivity and dynamic range than traditional tests, aiding drug development and cortisol-related diagnostics.
The research appears in the Journal of the American Chemical Society and received multiple funding sources.

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Story summary

A new protein-based biosensor measures cortisol levels via smartphone, improving stress testing accessibility.
Developed by Andy Yeh at UC Santa Cruz, the sensor emits light when binding to cortisol for accurate readings.
This method offers greater sensitivity and dynamic range than traditional tests, aiding drug development and cortisol-related diagnostics.
The research appears in the Journal of the American Chemical Society and received multiple funding sources.