A Low-Friction Capsule Robot with Drive-Control-Sensing Integration for Gastrointestinal Lesion Detection.

ABSTRACT: pH and temperature in the gastrointestinal (GI) tract are correlated with many diseases, but patients suffer from the pain of traditional testing methods. Functionalized capsule robots for GI tract sensing offer a potential approach for early GI disease diagnosis. However, most capsule robots struggle with control and sensing integration. In addition, the friction encountered by capsule robots during navigation poses a challenge for their application. Here, a capsule robot with a low coefficient of friction is proposed to continuously detect pH and temperature. The hydrogel skin reduces the surface friction coefficient by more than 4 times and achieves an average propulsion speed of 12.79 mm s^-1 in a living porcine small intestine. The capsule system enables continuous detection

SUBMITTER: Wang Z 

PROVIDER: S-EPMC12320490 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature