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. 2021 Jun 23;19:189. doi: 10.1186/s12951-021-00935-z

Fig. 1.

Fig. 1

Characterization of the siRNA-loaded FeSiNTs. A TEM images and B EDS elemental mapping of FeSiNTs. C The XPS survey spectrum of Mg 1 s, O 1 s, Si 2p, and Fe 2p spectra of FeSiNTs