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(A) Schematic representation of the strategy to obtain the double-cross-linked gelatin/HA-tyr film. (B) Three-dimensional confocal pictures of the gelatin/HA-tyr film cross-linked with TGA and HRP and fluorescently labeled with BSAFITC. Apoptotic/necrotic/healthy cell quantification for HUVECs (C) and THP-1 cells (D) seeded on gelatin and gelatin/HA derivative (unmodified and tyramine) films for 1 and 3 days. The experiment was performed on three different samples for each condition.
