Fig. 1

Schematic illustration of the Tof@BSA-Chs-CP NPs. The Pcn/Csn shell offers pH-dependent release protection in the upper GIT. The pectinase from gut microbiota triggers OCDDSs degradation and further regulates the gut microbiota ecosystem.
Schematic illustration of the Tof@BSA-Chs-CP NPs. The Pcn/Csn shell offers pH-dependent release protection in the upper GIT. The pectinase from gut microbiota triggers OCDDSs degradation and further regulates the gut microbiota ecosystem.