Figure 3

CNT-based substrates for controlling and monitoring cell behaviors. (A) An immunofluorescence image of secretory vesicles inside a cell on a CNT-based substrate with a schematic diagram (reproduced from ref. 26 with permission, © Wiley-VCH). (B) The computed waveforms of the average postsynaptic currents from the neurons on a CNT-based substrate (reproduced from ref. 27 with permission, © Nature Publishing Group). (C) SEM images of a fibroblast (white arrows) cultured on a 3-D CNT structure (reproduced from ref. 32 with permission, © American Chemical Society). (D) SEM images of neurons on positively and negatively charged mwCNTs (reproduced from ref. 33 with permission, © American Chemical Society).