Story perspectives

Breakthrough Biosensor Detects Alzheimer's at Zeptomole Sensitivity

10/13/2025

Summary

Story summary

Researchers from Shenzhen University and Huazhong University developed a light-activated graphene and black phosphorus biosensor capable of detecting Alzheimer's biomarkers at zeptomole sensitivity.
The biosensor uses a dual-gating mechanism that enhances sensitivity and detects amyloid-beta at 235.1 zeptomoles per liter when illuminated.
This enables ultra-early, non-invasive diagnosis and addresses the long diagnostic gap in Alzheimer's progression.

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Story summary

Researchers from Shenzhen University and Huazhong University developed a light-activated graphene and black phosphorus biosensor capable of detecting Alzheimer's biomarkers at zeptomole sensitivity.
The biosensor uses a dual-gating mechanism that enhances sensitivity and detects amyloid-beta at 235.1 zeptomoles per liter when illuminated.
This enables ultra-early, non-invasive diagnosis and addresses the long diagnostic gap in Alzheimer's progression.