Fig. 1

Construction and characterization of IRD and IRDM. (A) TEM image of IRD. B) EDS elemental distribution map of IRD. Scale bar = 200 nm. (C) TEM image and its magnification of IRDM coated with macrophage membrane (Mø). (D) Hydrodynamic diameter and polydispersity index of IRD and IRD@M measured by DLS. (E) Zeta potential of IRD and IRD@M. (F) Protein profiles of Mø, IRD@M, and IRD detected by SDS-PAGE. Data are expressed as mean ± SD (n = 3)