Research

Our latest endeavor is Project Verify: Advancing At-Home Gut Health Tracking. 

This is a feasibility study of a breakthrough device—the Microbiome Activity Tracker (MAT)—a simple at-home test designed to provide real-time insights into gut health. We will assess usability of the device at home with 100+ users and measure its ability to promote healthier lifestyle choices.

If you would like to support this research, please contact Jeanne Oury, Executive Director of Development, at jeanne.oury@duke.edu.

Your support can help us launch this groundbreaking research, empowering individuals with actionable data to improve their health and well-being. 

Publications

Jin Zhou, Yuying Luo, Julia W. Darcy, Kyle J. Lafata, Jose R Ruiz, Sonia Grego. "Long-term, automated stool monitoring using a novel smart toilet: A feasibility study." Neurogastroenterology & Motility, 2025 Jan; 37(1):e14954. doi: 10.1111/nmo.14954. Epub 2024 Nov 1.

Sonia Grego, Jin Zhou, Jose R. Ruiz, Kyle Lafata, Brian Hawkins, and Yuying Luo. "S663 Long-Term, Non-Invasive, Objective Stool Monitoring Using a Novel Smart Toilet: A Feasibility Study", Official Journal of the American College of Gastroenterology | ACG, 118: S484-S85 (2023).

Zhou J., J. McNabb, N. DeCapite, J.R. Ruiz, D.A. Fisher, S. Grego, and K. Chakrabarty. "Stool Image Analysis for Digital Health Monitoring by Smart Toilets." IEEE Internet of Things Journal (2022).

Sonia Grego, Claire M. Welling, Graham H. Miller, Peter F. Coggan, Katelyn L. Sellgren, Brian T. Hawkins, Geoffrey S. Ginsburg, Jose R. Ruiz, Deborah A. Fisher, and Brian R. Stoner. "A hands-free stool sampling system for monitoring intestinal health and disease." Scientific Reports 12, no. 1 (2022).

Claire Welling, David R. Singleton, Steven B. Haase, Christian H. Browning, Brian R. Stoner, Claudia K. Gunsch, and Sonia Grego. "Predictive values of time-dense SARS-CoV-2 wastewater analysis in university campus buildings." Science of The Total Environment (2022): 155401.

Sonia Grego, Jin Zhou, Krishnendu Chakrabarty, Brian R. Stoner, Jose R. Ruiz, Deborah A. Fisher. "Automated Stool Image Analysis for Artificial Intelligence in a Smart Toilet." Gastroenterology 160 (May 2021).

Jin Zhou, Nick DeCapite, Jackson McNabb, Jose R. Ruiz, Deborah A. Fisher, Sonia Grego, Krishnendu Chakrabarty.  "Stool Image Analysis for Precision Health Monitoring by Smart Toilet." Machine Learning for Healthcare. Vol. 149. Virtual: Proceedings of Machine Learning Research (2021).

Conference Proceedings

Welling, Claire; Hawkins, Brian; Barto, Amy; Herfarth, Hans; Grego, Sonia. "Smart Sampling Toilet: A Potential New Automated System for Collecting Fecal Calprotectin Samples." Digestive Disease Week (May 2023).

Ruiz J. R., Welling, C., Stoner, B. R., Fisher, D.A., and Grego, S. 2022. "A hands-free stool sampling system for remote monitoring of intestinal disease." Digestive Disease Week (May 2022).

Sonia Grego, Jin Zhou, Krishnendu Chakrabarty, Brian R. Stoner, Jose R. Ruiz, Deborah A. Fisher. "Automated Stool Image Analysis for Artificial Intelligence in a Smart Toilet." Digestive Disease Week (May 2021).

Zhou, J., N. DeCapite J., J. McNabb, J.R. Ruiz, D.A. Fisher, S. Grego, and K. Chakrabarty, "Stool Image Analysis for Precision Health Monitoring by Smart Toilets" in Machine Learning for Healthcare Conference 2021: P.709-729.