Fig. 8
From: Polyethylenimine-CO2 adduct templated CaCO3 nanoparticles as anticancer drug carrier
PEI-CO2@CaCO3-PEG-FA particles were entrapped in lysosomes imaged by TEM. L: normal lysosomes; C: particles in lysosomes; B1: bursting lysosomes; B2: burst lysosomes