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. 2021 Jul 19;19:219. doi: 10.1186/s12951-021-00961-x

Fig. 1.

Fig. 1

The characterization of Au@ZIF-8 nanocomplexes. a The morphology and distribution of Au@ZIF-8 indicated by SEM image. The inner structure, detailed diameter and composition are presented by b low magnified TEM image, c high magnified TEM image, and d EDX-elemental mapping. e The crystal information was examined byXRD patterns. f The absorption spectra of Au@ZIF-8 and AuNR were measured by spectrophotometer. g The absorption spectra of different concentrations of Au@ZIF-8