Elastin-Coated Biodegradable Photopolymer Scaffolds for Tissue Engineering Applications

Figure 3

FTIR analysis ((a) and (b)) of the elastin powder (pink line), PPF : DEF scaffold functionalized with elastin (green line) and PPF:DEF scaffold (orange line) after 24 h of incubation in distilled water at 37°C. The arrow indicates a change of the transmission percentage in the range of wave number (3500–3000 cm⁻¹) related to the OH extremities of the PPF : DEF and amidic group in elastin. (b) shows spectrum in the range of wave number (4000–2000 cm⁻¹) at higher resolution.