Liquid Sensors

At the AIME Lab, we are tackling one of the most persistent challenges in bioelectronics—the mechanical mismatch between rigid devices and the body’s soft, dynamic tissues. To overcome this barrier, we have developed a reconfigurable liquid cardiac sensor that conforms seamlessly to biological motion, enabling ambulatory heart monitoring without interference from movement or other physiological activities.

Using ultrahigh-resolution 3D skin imaging, we precisely map the complex surface of the wrist and model the sensor–tissue interface to optimize performance. This adaptive design allows the liquid sensor to maintain high-quality cardiac signals (23.1 dB) even in motion-rich environments, surpassing conventional electrocardiogram benchmarks in mobility scenarios.

By combining material adaptability, biomechanical modeling, and precision sensing, this work moves us closer to wearable systems that provide continuous, reliable health data—no matter where life takes the user.