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. Author manuscript; available in PMC: 2015 Feb 23.
Published in final edited form as: Angew Chem Int Ed Engl. 2014 Jul 30;53(47):12930–12935. doi: 10.1002/anie.201403936

Figure 5.

Figure 5

Ligand release of 1a upon hypoxic activation observed in comparison to L2 using UV fluorescence microscopy. A431 cells were incubated with 10 μm L2 (A and C) and 1a (B and D) under normoxic (A and B) and hypoxic (C and D) conditions, respectively, for 6 h.