Fig 1. Scaffold production.

After the wetted foam pack was kneaded according to the manufacturer’s recommendations, it was pressed into one well of a 6-well plate using a lid of a 50 ml tube to achieve equal distribution of the foam in the well (a). A 5 mm biopsy punch (b, Δ) was used to obtain cylindrically shaped scaffolds (b, *) from the compressed foam (b,→).