3. Results and discussion
Initially, poly(lactic acid) nanofibers were fabricated by
electrospinning, which has been extensively explored as a
straightforward, versatile and cost-effectivemethod to produce
novel fibers with diameters of nanometres [25, 26]. Since
the fiber obtained from a broad range of polymers has
a very high continuous surface area compared with other
materials, it has attracted a great deal of attention due to
a surge of interest in nanotechnology such as continuous
ultrafine fibers or fibrous structures of various polymers, with
typical examples including engineering plastics, biopolymers,
conducting polymers, block copolymers and polymer blends
[27–29]. After the fabrication of the polymer nanofibers,
AFM was utilized to characterize the nanostructure of the
PLA nanofibers.