New wearable biosensor can detect extremely small changes in tear glucose and blood lactate levels

Wireless wearable biosensors have been a game changer in personalized health monitoring and health care digitization because they can efficiently detect, record, and monitor medically significant biological signals. Chipless resonant antennae are highly promising components of wearable biosensors, as they are affordable and tractable. However, their practical applications are limited by low sensitivity (inability to detect small biological signals) caused by low quality (Q) factor of the system.

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