Fig. 2

Characteristics of PexD and gel. A Photos of Pex and PexD. B TEM images of Pex and PexD. Scale bar (left side): 500 nm. Scale bar (right): 100 nm. C Particle size and potential of Pex and PexD. D SDS-PAGE protein analysis of Platelets, Pex, and PexD. E Western blot analyses were performed on Platelet, Pex, PexD labeled CD41, P-selectin and CD61, CD9 CD63 and TSG101 characteristic of Pex and PexD, and CD44 on B16-F10 cells. F Photos of Platelet, Pex and PexD. G DOX curve of aPD-L1-PexD-Gel in PBS at pH 6.5. Data are expressed as mean ± SD (n = 3). H Cryo-scanning electron microscopy (SEM) images of fibrin gel containing PexD nanoparticles and aPD-L1. Scale bar (left side): 40 µm. Scale bar (right): 20 µm