- Microfluidic and Bio-sensing Technologies
- Gas Sensing Nanomaterials and Sensors
- Wireless Body Area Networks
- Neuroscience and Neural Engineering
- Analytical Chemistry and Sensors
- Pancreatic function and diabetes
- Advanced Chemical Sensor Technologies
- Energy Harvesting in Wireless Networks
- Electrical and Bioimpedance Tomography
University of California, San Diego
2022-2024
Case Western Reserve University
2020
Abstract Information related to the diverse and dynamic metabolite composition of small intestine is crucial for diagnosis treatment various diseases. However, our current understanding physiochemical dynamics metabolic processes within limited due lack in situ access intestinal environment. Here, we report a demonstration battery-free ingestible biosensing system monitoring metabolites intestine. As proof concept, monitor glucose on porcine model. Battery-free operation achieved through...
Electrical skin-surface stimulation has wide clinical adoption and home use, but skin burns are a risk existing devices do not monitor the electrode sites for damage or improperly connected electrodes. When burn occurs, low frequency phase of surface impedance changes. This brief describes novel analog processing technique that is suitable detecting changes during use portable electrical devices. The output 1-bit signal indicating if changed by more than predetermined amount, allowing system...
Small and battery-powered gas sensors offer the ability to detect airborne viruses, environmental pollutants, or health data for next-generation public safety applications through low-cost, distributed monitoring. Unfortunately, conventional require heating temperatures often greater than 100°C, which requires significant power consumption (e.g., 25mW in [1]) cannot be rapidly duty-cycled due long thermal-time constants. To eliminate need heating, other prior work utilizes techniques such as...