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. Author manuscript; available in PMC: 2020 Jul 18.
Published in final edited form as: Mater Sci Eng C Mater Biol Appl. 2019 Feb 20;99:1191–1198. doi: 10.1016/j.msec.2019.02.075

Fig. 6.

Fig. 6.

(a) The influence of oxygenation and deoxygenation on EPR signals of TAM radical and hydrogel-TAM. (b) Reversibility of TAM radical and hydrogel-TAM determined by EPR linewidths changing as a function of time.