**2. Experimental Setup**

#### *2.1. Material*

A 3 mm poly(ε-caprollactone) (PCL) wire (Perstorp, Malmö, Sweden) with a density of 1145 Kg/m<sup>3</sup> and a molecular weight of 80,000 g/mol, was used to fabricate circular scaffolds 19 mm in diameter (Corning Life Sciences, New York, NY, USA). PCL is a biodegradable polyester with a low melting point (60 ◦C) and a glass transition of about −60 ◦C.
