2.2.8 Swelling
To study swelling ratio of our gelatin hydrogel containing PDA-PAR30 NPs non-diluted (Gel-PDA-PAR30). We performed a first vacuum-dry step to obtain initial weigh. Then, samples were immersed in PBS 1X at +37°C. Measurements were performed after drying briefly with a paper. We realized these measurements at different time points: 5, 10, 20, 30, 60, 120, 180 and 240 minutes. All results were compared to gelatin hydrogel without NPs condition. All samples were performed in triplicates.