Scientists have developed a hydrogel inspired by slug mucus that is designed to seal fistulas in the gastrointestinal tract, according to News-Medical. The outlet reported the work on Thursday, November 5, 2026.
A gastrointestinal fistula is an abnormal connection that lets contents leak between parts of the digestive system or through the skin. Sealing such openings is the goal the researchers set for the new material, News-Medical reports.
The design draws on the way slugs produce a sticky secretion that helps them hold on to surfaces and protect themselves. The team behind the hydrogel adapted that idea into a material intended for use inside the body, according to the outlet.
News-Medical's report gives the headline finding and the material's intended purpose but does not include the full study text. Details such as the researchers' institutions, the composition of the hydrogel, and any laboratory or animal testing results were not available in the summary. It is therefore not yet known how the material performed in testing or how close it is to clinical use.
Fistulas in the digestive tract are a recognized clinical problem, and a material that could close them without surgery would be of clear interest to gastroenterologists and surgeons. Whether this hydrogel can meet that need will depend on evidence the current report does not provide.
Watch for the peer-reviewed study and any follow-up reporting from News-Medical for data on how the hydrogel was tested and what results it produced.
