CD47 and cancer: The presence of CRT on cancer cellswas significantly higher than levels before knockdown of CD47 andwas required to achieve phagocytosis in co-culture with human macrophages.Lipid nanoparticles (LNPs) and modified boron nitride nanotubes (BNPs)were used to carry CD47_siRNA, and the knockdown efficiency valuesof CD47 were compared in three cancer cells in co-culture, with anachieved knockdown efficiency of >95% using LNPs as carriers.