Figures & data
Figure 1 Schematic illustration of electrospinning process.
Figure 2 Antibacterial activity test: (A) Escherichia coli and (B) Bacillus.
Abbreviations: PAN, polyacrylonitrile; ES, in situ electrospun.
Figure 3 SEM images of (A) PAN nanofibers, (B) PAN/AgSD (ES) nanofibers, and (C) PAN/AgSD (immersion) nanofibers.
Abbreviations: SEM, scanning electron microscope; PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Figure 4 TEM images of (A) PAN/AgSD (ES) nanofiber mats and (B) PAN/AgSD (immersion) nanofiber mats.
Abbreviations: TEM, transmission electron microscope; PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Figure 5 Diameter interpretation of PAN and PAN/AgSD nanofibers.
Abbreviations: PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Figure 6 EDX analysis of PAN/AgSD (ES) (A) and PAN/AgSD (immersion) (B) nanofibers.
Notes: Dotted circles shown presence of Ag, C & S. *Under observation.
Abbreviations: EDX, energy-dispersive X-ray; PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Figure 7 FTIR-ATR spectra of PAN and PAN/AgSD nanofiber mats.
Abbreviations: FTIR, Fourier transform infrared spectroscopy; ATR, attenuated total reflectance; PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Figure 8 XRD analysis of PAN nanofibers and PAN/AgSD nanofibers.
Abbreviations: XRD, X-ray diffraction; PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Figure 9 Thermal degradation analysis of PAN nanofibers and PAN/AgSD nanofibers.
Abbreviations: PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Figure 10 XPS analysis of PAN/AgSD (ES) and PAN/AgSD (immersion): (A) Ag 3d, (B) Ag 3p, (C) S 2p, and (D) S 2s.
Abbreviations: XPS, X-ray photo-spectroscopy; PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Table 1 Summary of mechanical properties of PAN nanofibers and PAN/AgSD nanofibers
Figure 11 Stress–strain curve of PAN nanofibers and PAN/AgSD nanofibers.
Abbreviations: PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Figure 12 Comparison of tensile strength of PAN nanofibers, PAN/AgSD (ES), and PAN/AgSD (immersion) nanofibers.
Abbreviations: PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
Figure 13 Comparison of Young’s modulus of PAN nanofibers, PAN/AgSD (ES), and PAN/AgSD (immersion).
Abbreviations: PAN, polyacrylonitrile; AgSD, silver sulfadiazine; ES, in situ electrospun.
