Research Article

Surface Modification with NGF-Loaded Chitosan/Heparin Nanoparticles for Improving Biocompatibility of Cardiovascular Stent

Figure 1

Surface chemical composition determined by (a) FTIR spectra and (b) XPS wide-scan spectra. (a)~(d) refer to 316L SS, SS-DA, SS-DA-NP, and SS-DA-NP@NGF, respectively.
(a)
(b)