Fig. 4

Biochemical landscapes upon MWCNTs incubation with serum at 4 ºC or 37 ºC. The protein landscapes obtained upon MWCNTs incubation with bovine serum at 4 ºC or 37 ºC during 24, 48, and 72 h. SDS-PAGE analysis reveals how the same protein components interact very differently with the same nanotube as a function of temperature and time. Arrows indicate some of the most divergent protein peaks. Molecular weights (MW) of the proteins are indicated at the bottom of the figure. The full SDS-PAGE analysis is shown in Additional file 1: Figure S4