Carbon Nanotube-Based Electrochemical Sensors: Principles and Applications in Biomedical Systems
Figure 4
SEM pictures of the surface of the CNTs sol-gel composite (a) without and (b) with 0.25 mg colloidal silica particles per mg of MWNTs. Bar, 5 m. [Reprinted with permission from Gavalas et al. [118], Anal. Biochem. , 329, 247 (2004). Copyright 2004, Elsevier Science.]
