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. Author manuscript; available in PMC: 2018 Nov 12.
Published in final edited form as: Biomacromolecules. 2017 Feb 1;18(2):562–567. doi: 10.1021/acs.biomac.6b01715

Figure 1. Synthesis of tin-porphyrin-PEG hydrogels.

Figure 1.

A) Synthesis of 2H mTCPP hydrogel and subsequent tin chelation. B) Kinetics of SnCl2 chelation. Data show mean +/− std. dev. for n=3 separate chelation reactions. C) Absorbance and D) fluorescence spectra of 2H-mTCPP (black) and SnCl2mTCPP (grey) hydrogels. E) Scanning electron micrograph of a freeze-dried portion of SnCl2mTCPP hydrogel. 1 µm scale bar is shown.