Fig. 6
From: Polymer coated gold-ferric oxide superparamagnetic nanoparticles for theranostic applications
Phase contrast (row 1) and fluorescence (rows 2 and 3) images of BT-474 and MDA-MB-231 cells treated with 2 h incubation of PLL–Au–Fe3O4 followed by 10 min laser irradiation and 72 h of incubation in the medium. Uninternalized NPs were washed with PBS before the imaging. Green fluorescence represents live cells as stained with calcein AM, while the red fluorescence represents dead cells as stained with EthD-1. Scale bars are shown on images