Research Article

Preparation of Cholesteryl-Modified Aminated Pullulan Nanoparticles to Evaluate Nanoparticle of Hydrophobic Degree on Drug Release and Cytotoxicity

Figure 2

FTIR spectra for cholesterol succinate (CHS) (a), Pu-NH2 (b), CHPN1 (c), CHPN2 (d), and CHPN3 (e).