Fig. 4
From: Ex vivo and in vivo fluorescence detection and imaging of adenosine triphosphate
Intracellular imaging and sensing of ATP assisted by the TC/Apt. a–d CLSM images of TC/Apt in HeLa cells (a), MCF-7 (b), 4T1 (c), and ARPE-19 (d) cells. The TC/Apt-treated cells were respectively incubated with pure medium (control groups), free TC (100 μg/mL), and TC/Apt (100 μg/mL) at 37 °C for 12 h. Scale bars, 25 μm. e Corresponding histograms of the mean fluorescence intensity in HeLa cells, MCF-7 cells, 4T1, and ARPE-19 cells incubated with pure medium, pure TC, and the as-prepared TC/Apt probes, respectively. * represents p < 0.05, ** represents p < 0.01, and *** represents p < 0.001