Biomedical Engineering Reference
In-Depth Information
Fig. 2
Bright-fi eld light microscopy images of glass coverslips coated with PEI (
a
), SWCNT-PEI
(
b
), and AP-MWCNTs (
c
). Fluorescence images show live hippocampal neurons accumulating
calcein and grown on PEI (
d
), SWCNT-PEI (
e
), and AP-MWCNT (
f
). Arrows indicate growth
cones. Scale bar, 20 m m. (
g
) Drawing summarizing the effect of charge “dilution” on the neurite
outgrowth and branching. Neurons grown on SWCNT-PEI graft copolymer display neurite out-
growth and branching intermediate to those exhibited when grown on PEI and AP-MWCNTs.
Modifi ed from (Hu et al.
2005
)
