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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
(a−f) Fluorescence microscopy images of BEL-7402 cells under different treatments via LIVE/DEAD staining at the concentration of 20 μg/mL, with or without NIR laser irradiation (808 nm, 2 W·cm−2) at 37 °C. Blue: Live cells. Red: Dead cells. Bar = 50 μm.