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. Author manuscript; available in PMC: 2014 Aug 13.
Published in final edited form as: Macromolecules. 2013 Aug 2;46(15):6374–6378. doi: 10.1021/ma400996y

Figure 5.

Figure 5

Fluorescent microscopic (b-d) and contrast (a) images of HeLa/HEK mixed cells (1), HEK cells (2), and HeLa cells (3) incubated with the semi-flexible PPB/HA for 1 h, respectively. HeLa cells were fluorescently pre-labeled with a red dye (column c) before the core-shell nanoparticle incubation. Core-shell nanoparticles were seen under the green channel (column b); the nuclei were stained with a blue dye; and merged images were seen in column d. The core-shell nanoparticles preferentially labeled HeLa cells while exhibiting low binding to normal HEK cell.