Fig. 2

In vitro characterization of the Cu₂MnS₂ nanoplates. a TEM and SAED images of the Cu₂MnS₂ nanoplates; b the particle size of the Cu₂MnS₂ nanoplates; c the visible absorption curves of Cu₂MnS₂ nanoplates before and after incubation in serum for 3 days at 37 °C; d and e the thermographs and corresponding heating curves of the Cu₂MnS₂ nanoplates at varied concentrations upon 808 nm laser exposure (1 W/cm²); f the heating curves of the Cu₂MnS₂ nanoplates upon repeated 808 nm irradiation (1 W/cm²); g particle sizes of the Cu₂MnS₂ nanoplates before (green) and after (red) 5-cycle 808 nm irradiation (1 W/cm²); h the visible absorption profiles of the Cu₂MnS₂ nanoplates before and after 5-cycle 808 nm irradiation (1 W/cm²)