Table 1.

Solution composition and corresponding flow rates used in the various sections of our multiple concentric needle systems for trilayered electrospinning.

Fiber Layer	Flow Rate (mL h−1)	Material	Solvent
Core layer	2	4 wt % MTZ + 12 wt % PCL	4:1 v/v DCM: DMF
Middle layer	4	10 wt % PVP-I or 10 wt % PVP-I/PVP (1:1 w/w)	EtOH
Shell layer	7	25 wt % PEG	DCM