Silk Fibroin Hydrogels Incorporated with the Antioxidant Extract of Bark.

() is a Brazilian medicinal plant known for its pharmacological properties, including healing activity related to its phenolic composition, which is chiefly given by tannins. In order to preserve its stability and bioactivity, extracts can be incorporated into (bio-)polymeric matrixes, of which silk fibroin stands out due to its versatility and tunable properties. This work aimed to obtain bark extract rich in phenolic compounds and evaluate its incorporation in fibroin hydrogels.