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. Author manuscript; available in PMC: 2014 Jul 17.
Published in final edited form as: Chem Soc Rev. 2012 Feb 6;41(7):2539–2544. doi: 10.1039/c2cs15294k

Fig. 2.

Fig. 2

Schematic illustration of surface charge dependent nanoparticle internalization by cells. Positively charged particles have high internalization efficiency as compared to negative and neutral particles.