Figures & data
Figure 1 Photographs of different composite nanofibrous mats; (a) PVA 9% (N0), (b) placebo PVA-SA 10% composite nanofibers (N2), (c) verapamil HCl-loaded composite nanofibrous mats. PVA-SA-verapamil HCl 10/4% (N6), (d) placebo PVA-Z (25%) composite nanofibers (Z4), and (e) verapamil HCl loaded composite nanofibrous mats PVA-Z-verapamil HCl (25/2%) (Z5).
![Figure 1 Photographs of different composite nanofibrous mats; (a) PVA 9% (N0), (b) placebo PVA-SA 10% composite nanofibers (N2), (c) verapamil HCl-loaded composite nanofibrous mats. PVA-SA-verapamil HCl 10/4% (N6), (d) placebo PVA-Z (25%) composite nanofibers (Z4), and (e) verapamil HCl loaded composite nanofibrous mats PVA-Z-verapamil HCl (25/2%) (Z5).](/cms/asset/cb22ee58-448b-4701-a4f2-0d23f6b9a097/dddt_a_12157109_f0001_c.jpg)
Figure 2 SEM micrographs of (a) pure PVA 9% (N0), (b) placebo PVA-SA 10% (N2), (c) verapamil HCl loaded PVA-SA-verapamil 10.4% (N6), (d) placebo PVA-Z 25% (Z4), and (e) verapamil HCl-loaded PVA-Z-verapamil 25, 2% (Z5).
![Figure 2 SEM micrographs of (a) pure PVA 9% (N0), (b) placebo PVA-SA 10% (N2), (c) verapamil HCl loaded PVA-SA-verapamil 10.4% (N6), (d) placebo PVA-Z 25% (Z4), and (e) verapamil HCl-loaded PVA-Z-verapamil 25, 2% (Z5).](/cms/asset/68669ff2-437b-415c-921c-e43ddcffe4f2/dddt_a_12157109_f0002_c.jpg)
Figure 3 Nanofiber diameter distribution curves of PVA (N0) and composite (PVA-SA; N2 and N6) and (PVA-Z; Z4 and Z5) nanofiber formulations.
![Figure 3 Nanofiber diameter distribution curves of PVA (N0) and composite (PVA-SA; N2 and N6) and (PVA-Z; Z4 and Z5) nanofiber formulations.](/cms/asset/62624318-47fb-4d6b-b1fe-9622b26ce5d0/dddt_a_12157109_f0003_c.jpg)
Figure 4 Comparative FTIR Spectra of (a) PVA, (b) SA, (c) verapamil HCl, and (d) PVA-SA-Verapamil HCl loaded nanofibers (N6).
![Figure 4 Comparative FTIR Spectra of (a) PVA, (b) SA, (c) verapamil HCl, and (d) PVA-SA-Verapamil HCl loaded nanofibers (N6).](/cms/asset/7757d8d6-a564-4259-b676-81007f8ea941/dddt_a_12157109_f0004_c.jpg)
Figure 5 Comparative FTIR spectra of (a) PVA, (b) Z, (c) verapamil HCl, and (d) PVA-Z-verapamil HCl-loaded nanofibers (Z5).
![Figure 5 Comparative FTIR spectra of (a) PVA, (b) Z, (c) verapamil HCl, and (d) PVA-Z-verapamil HCl-loaded nanofibers (Z5).](/cms/asset/23f00d49-5de7-48c7-965c-a24607f16e2f/dddt_a_12157109_f0005_c.jpg)
Figure 6 In vitro drug release profiles of verapamil HCl from PVA-SA (N6) and PVA-Z (Z5) composite nanofibers in phosphate buffer pH 7.4 at 32°C.
![Figure 6 In vitro drug release profiles of verapamil HCl from PVA-SA (N6) and PVA-Z (Z5) composite nanofibers in phosphate buffer pH 7.4 at 32°C.](/cms/asset/f18f99ab-5f8a-4dde-aa0d-a64811cc19cb/dddt_a_12157109_f0006_c.jpg)
Figure 9 Histopathological examination at 500× magnification power of (a) normal skin, (b) control untreated group, (c) treated with verapamil HCl gel, (d) treated with placebo PVA-SA nanofibers (N2), (e) treated with placebo PVA-Z nanofibers (Z4), (f) treated with verapamil HCl-loaded PVA-SA nanofibers (N6), (g) treated with verapamil HCl-loaded PVA-Z nanofibers (Z5), on day 14 post-wounding.
![Figure 9 Histopathological examination at 500× magnification power of (a) normal skin, (b) control untreated group, (c) treated with verapamil HCl gel, (d) treated with placebo PVA-SA nanofibers (N2), (e) treated with placebo PVA-Z nanofibers (Z4), (f) treated with verapamil HCl-loaded PVA-SA nanofibers (N6), (g) treated with verapamil HCl-loaded PVA-Z nanofibers (Z5), on day 14 post-wounding.](/cms/asset/047a794b-35c0-4b8a-98e3-60224aa4ca51/dddt_a_12157109_f0009_c.jpg)