Functionalization and Fabrication of MWCNT on Screen Printed Carbon Eletrode

Carbon nanotubes (CNT) are one of the most widely used nonmaterials. It is applied in various fields due to its special physical characteristics, excellent electronic performance and stable chemical activity. There are two types of CNT occur (a) Single walled carbon nanotube (b) Multiwalled carbon nanotube. As their names shows, SWNTs consist of a single, cylindrical graphene layer, where as MWNTs consist of multiple graphene layers. CNT facilitate electron-transfer between electro-active species and electrode when it used as electrode material. To obtain quick and specific response of electrode, a functional group is attached to the nanotube. Functionalization shows the presence of C-O groups at the open end of nanotubes. Chemical changes were monitored by FTIR. Carboxylated Multi walled CNT treated with mixture of DMF and water to overcome its solubility problem. Now this homogenized mixture was used for fabrication of Screen printed carbon electrode for further use in formation of biosensor.