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. Author manuscript; available in PMC: 2014 Jul 29.
Published in final edited form as: Angew Chem Int Ed Engl. 2013 Jun 21;52(31):10.1002/anie.201302764. doi: 10.1002/anie.201302764

Figure 1.

Figure 1

Schematic depicting the color spectrum for diaCEST agents. a) range of exchangeable proton shifts observed presently for diaCEST agents; b) CEST contrast curves for three representative agents: Salicylic Acid (1), Barbituric Acid (2), and D-Glucose (3) at concentrations of 25 mM, pH 7.0,, 37°C using ω1 = 7.2 μT, tsat = 3 s for saturation.