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(a) Synthesized methodology and (b) schematic representation of the 19F‐fluorinated self‐assembly NGs with decreased interior density. (c) Variate relaxation of T2 in the different layers of the NGs depending on the fluorine microenvironment. (d) Cell viability with NG and NG‐DTX incubated under different concentrations. (e) In vivo MRI at the inflammation site over 72 h. Reprinted with permission from Munkhbat et al. (2019). Copyright 2019. American Chemical Society
