Research Article

Carbon Nanotubes/Gold Nanoparticles Composite Film for the Construction of a Novel Amperometric Choline Biosensor

Figure 2

SEM image of Chit-MWCNTs (a), TEM image and UV-visible absorbance spectrum of AuNPs with an average diameter of about 15 nm (b and c), and a photo of Chit-MWCNTs solution (d, left) and AuNPs (d, right).
464919.fig.002a
(a)
464919.fig.002b
(b)
464919.fig.002c
(c)
464919.fig.002d
(d)