Figure 1
From: Immune tuning scaffold for the local induction of a pro-regenerative environment

(A) Photograph of the collagen (CL)-chondroitin sulfate modified scaffold (CSCL). (B) Carbodiimide chemistry schematic to covalent link the chondroitin sulfate to Collagen structure. The carboxylic acid presented on CS sequence forms an amide bond with the free primary amines present on the collagen sequence. (C) SEM images showing scaffold’s porosity (on the left site) and the intact nanostructure of the collagen fibers (on the right site). (Scale bars: 100 μm and 500 nm). (D) Pictures showing the subcutaneous implant procedure.