Figure 2From: Effect of nitrogen atomic percentage on N+-bombarded MWCNTs in cytocompatibility and hemocompatibilitySEM images of N+-bombarded MWCNTs. Nitrogen contents are (a) 7.81%, (b) 8.67%, and (c, d) 9.28%. (e) TEM image of N+-bombarded MWCNTs with nitrogen content of 9.28%. The insets (f, g, h) are their contact angle images, respectively.Back to article page