837327.fig.009a
(a)
837327.fig.009b
(b)
837327.fig.009c
(c)
Figure 9: Confocal microscopy showing the internalization of labeled single strand DNA into Hela cell using SWNTs. (a) The labeled DNA (green colour) is surrounding the nucleus (black circles) at 37°C. (b) The nucleus stained using DRAQ5 (red color) is surrounded by the labeled DNA (green colour) after internalization at 37°C. (c) At 4°C, no DNA internalization has occurred [39].