Fig. 1

A TEM image of LDH and LDH@ZnPc. Scale bars: 100 nm. B SEM image of LDH and LDH@ZnPc. Scale bars: 100 nm. C Size distribution histogram of LDH and LDH@ZnPc. D Zeta potential of LDH and LDH@ZnPc. E Elemental mapping of LDH@ZnPc. Scale bar: 200 nm. F Absorption spectra of LDH, ZnPc and LDH@ZnPc. G XRD analysis of LDH@ZnPc. H XPS spectra of LDH@ZnPc. I Stability of LDH@ZnPC under storage (4 °C, in water) and physiological conditions (37 °C, in PBS and FBS). J In vitro ZnPc release from LDH@ZnPc. K Hemolysis assay of LDH and LDH@ZnPc and L the corresponding hemolysis percentages