ImmunoChemistry Technologies

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Figure 1. (a) Fluorescent responses of NP3 (5 μM) toward various analytes (10 μM). Data shown represent fluorescent intensity at 470nm, 30 min after addition of the analytes. (b) ONOO− (final 10 μM) was quickly injected into a solution of NP3 (final 5μM), and the fluorescent intensity at 470 nm was plotted against time. (c) Fluorescence enhancement of NP3 (5μM) at 470 nm as a function of ONOO− (0−10 μM) after 15 min of reaction. All data acquired in PBS (10 mM, pH 7.4) with excitation at 375 nm.Figure 2. (a) Time-lapse images taken from living EA.hy926 endothelial cells. Cells were preincubated with NP3 (5.0 μM), followed by stimulation with or without SIN-1 (0.5 mM). (b) Dynamic changes of NP3 fluorescence after SIN-1 (0.5 mM) treatment in panel a. (c) Effects of ONOO− scavengers uric acid (100 μM) and FeTTPS (1 μM) on changes in NP3 fluorescence in endothelial cells in the presence of ONOO− (60 μM). PI (red) stains nuclei. NP3 fluorescence was collected at 420−480 nm with λex 405 nm.

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