The gastrointestinal (GI) tract provides noninvasive access to the internal lumen of the body, where numerous health-related information can be obtained. Additionally, some chronic gastroesophageal diseases need long-term in situ monitoring and treatment, which requires devices or implants to remain in the gastrointestinal tract. However, operating bioelectronics locally for a sustained period within the GI tract remains a challenge. A collaborative research team led by Professor Li ZHANG from the Faculty of Engineering, Professor Philip Wai Yan CHIU, and Professor Kai Fung CHAN from the Faculty of Medicine has developed wirelessly powered electronic stents for a new electrical stimulation therapy which could prevent and potentially cure gastric acid reflux.