Figure 4:
FT-IR transmission spectra of chitosan (a), HSA (b), plain CS/TPP NPs, N
7
(c), HSA-loaded CS/TPP NPs, N
8
(d), plain CS/SO
4
NPs, N
4
(e), and HSA-loaded CS/Na
2
SO
4
NPs, N
3
(f).
