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About

David G. Thomas is a leading researcher in the emerging field of gastrointestinal robotic capsules, with a focus on developing smart, untethered devices for diagnosing and monitoring gut health. His primary contributions lie in the design and validation of robotic capsules capable of sensing, sampling, and measuring forces within the living intestine—work that bridges biomedical engineering, micro-robotics, and clinical gastroenterology. Thomas is best known for pioneering a capsule robot that uses shape memory alloy springs to collect uncontaminated microbiota samples directly from the small intestine, a critical innovation for understanding the gut’s role in overall health, mood, and behaviour. His most cited paper, “Smart capsules for sensing and sampling the gut” (2023, 58 citations), outlines the field’s status and challenges, while his work on measuring peristaltic forces (23 citations) provides essential data for designing safer, more effective actuation mechanisms. With over 150 cumulative citations and multiple studies advancing from proof-of-concept to in vivo validation, Thomas’s research is shaping the next generation of clinical tools for non-invasive gut assessment and personalised medicine.