Figure 2From: Pharmacokinetics, clearance, and biosafety of polyethylene glycol-coated hollow gold nanospheresIn vitro complement activation and platelet aggregation assays. A: Complement activation assay of PEG-HAuNS (1Â mg/mL). The nanoparticles did not result in the detectable activation of a complement system. PC, positive control (cobra venom), NC, negative control (PBS). B: Platelet aggregation in the presence of PEG-HAuNS. PEG-HAUNS under tested concentrations did not induce platelet aggregation. C: PEG-HAUNS under tested concentrations did not interfere with collagen-induced platelet aggregation. PC, positive control (collagen).Back to article page