Development of a microbial biosensor based on carbon nanotube (CNT) modified electrodes
Pseudomonas putida DSM 50026 cells were used as the biological component and the measurement was based on the respiratory activity of the cells estimated from electrochemical measurements. The cells were immobilised on carbon nanotube (CNT) modified carbon paste electrodes (CPE) by means of a redox osmium polymer, viz. poly(1-vinylimidazole)(12)-[Os-(4,4'-dimethyl-2,2'-dipyridyl)(2)Cl-2](2+ /+). T