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. 2014 Dec 15;9(Suppl 2):57–65. doi: 10.2147/IJN.S57924

Figure 2.

Figure 2

Temporal variations in the optical density of ZnO dispersions in RPMI cell culture media: (A) ZnOAA20, (B) ZnOSM20, and (C) ZnOAE100.

Notes: Filled circles show uncoated ZnO without FBS; hollow circles show uncoated ZnO with FBS; filled triangles show PAA-coated ZnO without FBS; hollow triangles show PAA-coated ZnO with FBS; filled squares show PLL-coated ZnO without FBS; and hollow squares show PLL-coated ZnO with FBS.

Abbreviations: FBS, fetal bovine serum; PAA, poly(acrylic acid); PLL, poly-L-lysine hydrochloride; RPMI, Roswell Park Memorial Institute; ZnOAA20, 20 nm ZnO; ZnOAE100, <100 nm ZnO; ZnOSM20, 10–35 nm ZnO.