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. Author manuscript; available in PMC: 2015 May 18.
Published in final edited form as: Nat Commun. 2014 Nov 18;5:5460. doi: 10.1038/ncomms6460

Figure 2. Properties of nitroxide-loaded branched-bottlebrush polymers.

Figure 2

(a) EPR spectra of chex-MM compared with n = 54 bottlebrush polymer P1. (b) MRI phantoms and relative contrast enhancements (compared with PBS buffer) of chex-MM and P1. (c) Analysis of nitroxide reduction in response to ascorbate. a‘dendrimer’ referes to previously reported fourth generation spirocyclohexyl nitroxide-functionalized poly(propyleneimine) dendrimer31. b‘TEMPO-polymer’ refers to previously reported 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO)-functionalized branched-bottlebrush polymers53.