Effects of Multiwalled Carbon Nanotube Surface Modification and Purification on Bovine Serum Albumin Binding and Biological Responses

Figure 3

Uptake of MWCNTs with or without BSA coating by either RAEC cells or RAW264.7 cells. MWCNTs with or without BSA were internalized by RAEC cells (a) or RAW264.7 cells (b) measured by flow cytometry based on the changes in side scatter shift. The cellular uptake of MWCNTs with or without BSA coating was visualized using darkfield imaging, for RAEC cells (c) and RAW264.7 cells (d) (magnification: 100x); , compared to the control; , compared to MWCNT; , comparison between MWCNTs with and that without BSA coating.

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