A vibrating ingestible bioelectronic stimulator modulates gastric stretch receptors for illusory satiety

SS Srinivasan, A Alshareef, A Hwang, C Byrne… - Science …, 2023 - science.org
Effective therapies for obesity require invasive surgical and endoscopic interventions or high
patient adherence, making it challenging for patients with obesity to effectively manage their …

Flexible piezoelectric devices for gastrointestinal motility sensing

C Dagdeviren, F Javid, P Joe, T von Erlach… - Nature biomedical …, 2017 - nature.com
Improvements in ingestible electronics with the capacity to sense physiological and
pathophysiological states have transformed the standard of care for patients. Yet, despite …

Self-powered coiled carbon-nanotube yarn sensor for gastric electronics

Y Jang, SM Kim, KJ Kim, HJ Sim, BJ Kim, JW Park… - ACS …, 2019 - ACS Publications
The strong peristaltic contraction of the stomach facilitates mixing and emptying of ingested
food, which occurs rhythmically at approximately 3 cycles/min (cpm) in humans. Generally …

Bioinspired, ingestible electroceutical capsules for hunger-regulating hormone modulation

KB Ramadi, JC McRae, G Selsing, A Su… - Science robotics, 2023 - science.org
The gut-brain axis, which is mediated via enteric and central neurohormonal signaling, is
known to regulate a broad set of physiological functions from feeding to emotional behavior …

Stretchable device for simultaneous measurements of contractility and electrophysiology of neuromuscular tissue in the gastrointestinal tract

P Oldroyd, S Oldroyd, M Meng, R Makwana… - Advanced …, 2024 - Wiley Online Library
Devices interfacing with biological tissues can provide valuable insights into function,
disease, and metabolism through electrical and mechanical signals. However, certain …

Orally Ingested Self‐Powered Stimulators for Targeted Gut–Brain Axis Electrostimulation to Treat Obesity and Metabolic Disorders

CH Mac, HM Tai, SM Huang, HH Peng… - Advanced …, 2024 - Wiley Online Library
Obesity is a significant health concern that often leads to metabolic dysfunction and chronic
diseases. This study introduces a novel approach to combat obesity using orally ingested …

Neural signalling of gut mechanosensation in ingestive and digestive processes

M Kim, G Heo, SY Kim - Nature Reviews Neuroscience, 2022 - nature.com
Eating and drinking generate sequential mechanosensory signals along the digestive tract.
These signals are communicated to the brain for the timely initiation and regulation of …

An ingestible, battery-free, tissue-adhering robotic interface for non-invasive and chronic electrostimulation of the gut

K Nan, K Wong, D Li, B Ying, JC McRae… - Nature …, 2024 - nature.com
Ingestible electronics have the capacity to transform our ability to effectively diagnose and
potentially treat a broad set of conditions. Current applications could be significantly …

Ingestible transiently anchoring electronics for microstimulation and conductive signaling

A Abramson, D Dellal, YL Kong, J Zhou, Y Gao… - Science …, 2020 - science.org
Ingestible electronic devices enable noninvasive evaluation and diagnosis of pathologies in
the gastrointestinal (GI) tract but generally cannot therapeutically interact with the tissue wall …

Both high fat and high carbohydrate diets impair vagus nerve signaling of satiety

H Loper, M Leinen, L Bassoff, J Sample… - Scientific Reports, 2021 - nature.com
Obesity remains prevalent in the US. One potential treatment is vagus nerve stimulation
(VNS), which activates the sensory afferents innervating the stomach that convey stomach …