Scheme 1

EVs@UiO-66-NH2@siRNA nano-delivery system for the treatment of UC. (A) Preparation process of EVs@UiO-66-NH2@siRNA. (B) EVs@UiO-66-NH2@siRNA specifically treat UC
EVs@UiO-66-NH2@siRNA nano-delivery system for the treatment of UC. (A) Preparation process of EVs@UiO-66-NH2@siRNA. (B) EVs@UiO-66-NH2@siRNA specifically treat UC