Preparation of Carbon Nanotube Paste Electrodes Using Different Binders

Preparation of Carbon Nanotube Paste Electrodes Using Different Binders 

Surfactants, such as sodium dodecyl sulfate (SDS) and Triton X-100, and particularly ILs, have been lately used as binders, since the latter improve the conductivity of the paste material and, depending on the molecular structure of the IL, can also provide catalytic properties or selectivity toward certain compounds. SWCNTs were dispersed in a 1 wt% SDS aqueous solution and sonicated 

The resulting CNTPE can also be modified by immersion, drop coating, or electrodeposition of different molecules, polymers, biomolecules, or metals. Some examples include 3,4-dihydroxybenzaldehyde [153] and polyOs-GDH-Dl-NAD for the detection of glucose in alcoholic beverages [154] or pyrrole polymerized at CNTPE with a DNA probe for the detection of the hybridization event [155]. 

Afkhami et al. [162] used a graphite paste electrode containing MWCNT modified by the electrodeposition of gold NPs from a HAuCl solution to successfully determine cefixime, methadone [163], and nitrite [164] in a pharmaceutical form, in urine and saliva in several food stuffs and water samples, respectively. Fe203 

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