The precursor solution for electrospinning was prepared by dissolving 15% w/v PCL (Mw = 80,000) powder in a mixture of CH and DMF solvents in a ratio of 70:30. Polymer solution was stirred at 80-90°C for 3-4 h to acquire a homogeneous solution. Subsequently, the obtained solution was drawn into a plastic syringe and installed on the electrospinning machine equipped with a high-voltage power supply. A square mesh (Al, 1.58mm) was chosen as the collector, covering a metallic cylinder. PCL solution was electrospun at a flow rate of 1.5 ml/h for 60 min using a voltage of 7 kV. The distance between the spinneret and the collector was 15 cm, and the rotation rate of the cylinder was 300 rpm.