Scientists created innovative nanocoatings using tea polyphenols and metal ions to protect probiotics during digestion and enhance their therapeutic effects against inflammatory bowel disease. The coated probiotics showed 2.7-fold better survival through the digestive system and superior retention in the intestines. In mouse models of ulcerative colitis, these enhanced probiotics reduced inflammation markers, improved beneficial gut bacteria populations, and decreased harmful bacterial strains more effectively than uncoated probiotics.
