Fig. 4

Analysis of the toxicity and viability of nanocomposites to cells. a The molecular structure of MIT. b PL and PLE of MIT. c The drug loading efficiency of FePt@MMT-MIT. d The endocytosis efficiency of MIT shows the magnetic permeability effect of FePt@MMT-MIT. The nucleus is shown by DAPI (440 nm) staining; MIT is shown by red fluorescence (695 nm). (scale bar: 50 μm) e Fluorescent quantification by flow cytometry. The different kinds of nanocomposites were cultured with f Mahalavu and g SKHep1 cells for 48 h to assess the cytotoxicity of FePt, FePt@MMT, and FePt@MMT-MIT