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. 2020 Feb 10;10(7):3325–3339. doi: 10.7150/thno.41228

Figure 1.

Figure 1

Characterization of Si/PNPs@HeLa. (A) Preparation procedure of Si/PNPs@HeLa. Size distribution (B) and ζ potential (C) of Si/PNPs (blue) and Si/PNPs@HeLa (red). (D) TEM image of Si/PNPs (left) and Si/PNPs@HeLa (right). Scale bar, 100 nm. (E) SDS-PAGE analysis of proteins in the lysate of HeLa membrane and Si/PNPs@HeLa. (F) TEM image of Si/PNPs@HeLa stained with extracellular-domain specific AuNPs-AS1411. Scale bar, 100 nm. (G) Intracellular co-localization of the HeLa membrane shell (visualized with green DiO dyes) and the SiNPs core (visualized with red Cy5-siRNA dyes).