pp. 339-352
S&M654 Research Paper Published: 2006 Cobalt Tetraphenylporphine (CoTPP) Film as Glucose and Hydrogen Peroxide Sensors after Immobilizing Glucose Oxidase (GOx) [PDF] D. Sakthi Kumar, Kenji Nakamura, Atsumu Shoji and Yasuhiko Yoshida (Received July 8, 2006; Accepted August 28, 2006) Keywords: CoTPP, glucose sensor, plasma polymer, thin film
We developed a cobalt tetraphenylporphine (CoTPP) thin film by vacuum evaporation and plasma polymerization and checked its utility as a glucose and hydrogen peroxide (H2O2) sensor. The sensing ability was realized by immobilizing glucose oxidase (GOx) enzyme on the surface of the plasma-polymerized CoTPP film. The plasma-polymerized film acts as a protective layer to the vacuum-evaporated CoTPP film. Cyclic voltammetry has been used to characterize the sensing behavior of the combination of indium tin oxide (ITO-acting as an electrode), CoTPP film (both vacuum evaporated and plasma polymerized) and the GOx layer. Our results suggest that we can use the ITO, CoTPP and GOx combination as a very good glucose and H2O2 sensor.
Corresponding author: Yasuhiko YoshidaCite this article D. Sakthi Kumar, Kenji Nakamura, Atsumu Shoji and Yasuhiko Yoshida, Cobalt Tetraphenylporphine (CoTPP) Film as Glucose and Hydrogen Peroxide Sensors after Immobilizing Glucose Oxidase (GOx), Sens. Mater., Vol. 18, No. 7, 2006, p. 339-352. |