Fig. 3
From: Titanium nanosheet as robust and biosafe drug carrier for combined photochemo cancer therapy
A DOX release from Ti@PDA-PEG-DOX NSs in vitro at different pH values with/without an 808 nm NIR laser (1.1 W/cm2, 5 min). B Effect of different concentrations of Ti@PDA-PEG NSs on cell viability. C Cell viability of 4T1 cells with different treatments. D Fluorescence images of 4T1 cells treated with Ti@PDA-PEG-DOX NSs with/without laser irradiation for 5 min (original magnification, ×400). E In vivo fluorescence imaging of 4T1 tumor-bearing mice at different time points that received Cy5-labeled Ti@PDA-PEG NSs via tail intravenous injection and ex vivo fluorescence images of major organs and tumors after systemic administration at 24 h