Fig. 2: Physicochemical structure characterization of PVA@HD5-myr.
From: Defensin-conjugated polymer fabrics combat drug-resistant biofilms and toxins in skin wounds
a Photographs and SEM images of surface morphologies of PVA and PVA@HD5-myr dressings. Scales bars, 100 μm. b EDS elemental mapping images of the following elements: C, O of PVA and C, O, N of PVA@HD5-myr. Scales bars, 100 μm. c-e XPS spectra of (c) PVA, (d) HD5-myr and (e) PVA@HD5-myr. f N 1 s core-level spectra for amide groups of HD5-myr and PVA@HD5-myr. g S 2p core-level spectra of HD5-myr and PVA@HD5-myr. h Ti 2p core-level spectra of PVA@HD5-myr. i, j The composition of the PVA@HD5-myr extract was analyzed by MALDI-TOF MS. PVA@HD5-myr (2 g) was placed in 30 mL of ultrapure water and treated at 50 °C for (i) 24 h or (j) 48 h. Then, the extract was analyzed by MALDI-TOF MS.
