Figure 2
From: Engineered nanoparticles interacting with cells: size matters
Active NP uptake. (a – d) Internalization of DPA-QDs (8 nm) by HeLa cells [60]. (e – h) Uptake of DHLA-AuNCs (3.3 nm) by HeLa cells [61]. (i – l) Uptake of polystyrene NPs (100 nm, coated with carboxylic groups) by mesenchymal stem cells (MSCs) [63]. Reproduced with permission from the American Chemical Society and the Royal Chemical Society.