Fig. 3From: Ultrasound targeted microbubble destruction combined with Fe-MOF based bio-/enzyme-mimics nanoparticles for treating of cancerCharacteristics of FeN200@GOx@M. a The element mapping of FeN200@GOx@M. b XPS analysis of phosphorus atoms, indicating the existence of cell membrane. c SDS-PAGE imaging revealed the successful loading of GOx and cell membrane on FeN200@GOx@M with corresponding bands. d, f The average size of different agents. e, g The average zeta potential of different agents. * indicated P < 0.05Back to article page