Fig. 3
TEM images of the as spun PMMA/PAN nanofibers. a normal coaxial nozzle, b inward coaxial nozzle, and c outward coaxial nozzle
Fig. 3 | Nanoscale Research Letters
TEM images of the as spun PMMA/PAN nanofibers. a normal coaxial nozzle, b inward coaxial nozzle, and c outward coaxial nozzle