Figure 5

FTIR spectra of (A) bulk chitosan (B) C–H NF (C), (D) hypothetical model of C–H NF showing interactions of chitosan, TPP and histidine and SEM and TEM study of C–H NF, SEM at (E) 20 kx, TEM at (F) 60 kx (G) 150 kx Source: generated through CorelDRAW Graphics Suite 2024, Version 12; URL: Graphic design software with CorelDRAW Graphics Suite (https://www.coreldraw.com/en/product/coreldraw/)).