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SEM images low and high magnification of (a,b) chitosan-grafted-polyacrylic (CT-g-PAA) hydrogel, (d,e) chitosan-grafted-polyacrylic acid/oxidized electrospun carbon nanofibers (CT-g-PAA/O-ECNFs)-0.5 hydrogel nanocomposite, and pore size distribution of (c) CT-g-PAA hydrogel and (f) CT-g-PAA/O-ECNFs-0.5% hydrogel nanocomposite.
