Antiproliferative Activity of PEG-PEI-SWCNTs against AMJ13 Breast Cancer Cells

Figure 4

TEM images of PEG-PEI-SWCNTs with a rough tubular structure. Some particles appeared to be attached and distributed along the SWCNT sidewalls, indicating that PEG and PEI are conjugated onto nanotube. Scale bar: 60 nm.