Chitosan-Alginate Nanoparticle System Efficiently Delivers Doxorubicin to MCF-7 Cells

Figure 3

FTIR spectra of (a) pure alginate, (b) pure chitosan, (c) Csn NP prepared using 2 : 1 weight ratio of chitosan to STPP, (d) Csn-Alg NP prepared using 2 : 1 weight ratio of chitosan to alginate (e) DOX Csn NP, and (f) DOX Csn-Alg NP.