Dissolution tests were performed on an in-house built Unites States Pharmacopeia (USP) dissolution apparatus 2 with rotational speed of 50 rpm at 37°C. The dissolution medium was 250 mL phosphate buffered saline (pH = 7.4) (Ph. Eur.) and the printed scaffolds were weighted and added to the pre-heated dissolution medium. At set time points between 0 and 30 min, samples of 1 mL were removed, and the medium was refilled with 1 mL fresh buffer solution (37 °C) every time. The amount of dissolved drug was investigated by UV-Vis spectroscopy at these time points. The data were evaluated using Origin software.