PuffEM: An E-cigarette Sleeve for Estimating User Nicotine Intake
A low-power wearable e-cigarette sleeve that combines a touch sensor and on-surface magnetometer to detect vaping events and estimate nicotine intake for smoking-cessation research.
Jun 24, 2025
PuffEM
A low-power e-cigarette sleeve that senses vaping events and estimates nicotine intake.
Jun 24, 2025
Phantom Puffs: A Phantom Lung to Emulate Smoking Behavior
A phantom lung that emulates human breathing patterns to provide a consistent, repeatable environment for testing e-cigarette and smoking-monitoring sensors without human subjects.
Sep 10, 2024
Flexible Computational Photodetectors for Self-Powered Activity Sensing
Thin, flexible organic photodiode arrays that perform in-sensor analog computation to extract mid-level vision features as a single self-powered signal for activity sensing.
Jan 27, 2022
OptoSense: Towards Ubiquitous Self-Powered Ambient Light Sensing Surfaces
A general-purpose, self-powered sensing system that uses surface-level ambient light to infer user activities and interactions, with a design framework spanning sensing dimensions, fields of view, and perspectives. IMWUT Distinguished Paper Award.
Sep 4, 2020