Electrospun composite nanofibers containing nanoparticles for the programmable release of dual drugs

Electrospun composite nanofibers containing nanoparticles were fabricated through a one-step, single-nozzle electrospinning technique. The nanoparticles were linearly packed as a string along the axes of the fibers, forming core–shell structure. Loading different drugs in core and shell provided distinct release behaviors at the same time.