Fig. 8From: Size-dependent cellular toxicity and uptake of commercial colloidal gold nanoparticles in DU-145 cellsCoomassie-stained SDS-PAGE gel lanes for protein coated 20 and 200 nm GNPs. FBS is a combination of various proteins. The lanes “20 nm serum and 200 nm serum” show a band for protein bound to the GNPs suggesting the presence of protein corona. The samples incubated with plain DMEM did not show any protein bands (data not shown)Back to article page