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Laser-responsive DOX release. (A) Flow cytometry histograms displaying the fluorescence signals of DOX in AGS cells exposed to an 808 nm laser (1 or 2 W/cm2) for 10 min. (B) Quantitative analysis of the mean fluorescence intensity. *P < 0.05. (C) Confocal imaging of the AGS cells incubated by AS1411-based nanoparticles for 2 h and processed under 808 nm laser irradiation (1 or 2 W/cm2). The fluorescence signal is represented by DOX (red) or DAPI (blue).
