536291.fig.005a
(a)
536291.fig.005b
(b)
536291.fig.005c
(c)
Figure 5: TEM micrographs of unloaded and BSA-loaded CS/DS nanoparticles before and at 24 h after incubation in human and fetal bovine sera. CS/DS nanoparticles were tend to form aggregates at 24 h after incubation in both FBS and HS (CS 0.075% w/v, BSA 1 mg/mL).