Iron(III)2,4-pentanedionate, 1,2-hexadecanediol, oleic acid, oleylamine, EDC solid powder, phenyl ether and MES buffer solution were obtained from Shanghai Aladdin Company. Ethyl alcohol, hexyl hydride and trichloromethane were abtained from Shanghai Sinopharmm Group Chemical Reagent Co. LTD. DSPE-PEG2000 solid powder (A.V.T., Shanghai, China), sLex (Carbosynth, UK), 808 nm near-infrared laser (BWT, Beijing, China), Digital thermometer (TES, Taipei, China), Cell Counting Kit-8 (Dojindo, Shanghai, China), Trypan blue staining kit (Solarbio, Beijing, China), 3.0T MRI scanner (Discovery MR750, GE Healthcare, USA), four-channel animal coil (10F-04885, Teshen, Shenzhen, China), Near-infrared thermal imager (HIKVISION, Hangzhou, China), Prussian blue iron stain kit (Biotopped, Beijing, China), Hematoxylin–eosin stain kit (Solarbio, Beijing, China), Anti-CD62E antibody (Abcam, Shanghai, China).
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