Fig. 1.

(a) Representative SEM images of different core-shell nanofibers; (b) TEM images clearly illustrate the distinctive core-shell structure in the P/PCL nanofibers; (c) CLSM images of the core-shell nanofibers with DAPI-labeled PLGA (shell) and rhodamine B-labeled PCL (core); (d) EDS elemental mapping and spectrum of PDA@PHA/PCL-ALN