Category: Research

Prof. Zhenan Bao et al demonstrate a skin-conformal, electrolyte-gated-organic field-effect transistor (EG-OFET) bioelectronic sensor with cortisol detection sensitivity down to picomolar concentration.

Prof. Sheng Xu et al reported UPatch that adheres to the maternal abdomen to visualize fetal anatomy and measure continuous fetal heart rate and blood flow without a sonographer.

Prof. Vivian Feig et al present a design framework and then examine how it guides development of functional devices delivered as flowable precursors that then assemble into macroscopic, tissue-conformal devices at the target site, enabling minimally invasive implantation.

Prof. Zhenan Bao et al fabricate intrinsically stretchable logic gates and ring oscillators with stable performance up to 100% strain at a low operating voltage of 2 V.

Prof. Ada Poon, Prof. Philip Wong et al report a sensor that combines a light emitting diode with a light-dependent resistor, which is self-powered by a galvanic cell when in contact with bodily fluid, such as urine, tears, saliva, or blood.

Prof. Todd Coleman, Prof. Zhenan Bao and Leen A. Razzak design and demonstrate a patch for high-resolution electrogastography and find that the design using elastomeric Ag/AgCl with conductive hydrogel functionalization is more efficiently fabricated and has lower impedance magnitude.

Prof. James Zou, Prof. Emmanuel Mignot et al developed SleepFM that accommodates multiple polysomnography configurations and produces latent sleep representations to capture the physiological and temporal structure of sleep and to enable accurate prediction of future disease risk.

Prof. Zhenan Bao, Prof. Scott Delp et al introduce a Gen-AI learning framework that predicts muscle activity in regions not covered by the compact sensor, allowing simple EMG wearables to produce rich information.

Prof. Zhenan Bao et al discuss the operational principles, device design, material selection, and fabrication considerations for stretchable transistors in future wearable and implantable integrated circuits.

Prof. Zhenan Bao et al have developed a hybrid wearable system of soft sensors and flexible printed circuit board, which wirelessly communicates with a smartphone app, and demonstrate that the system can perform cortisol sensing from human sweat under acute stress events.