An organically modified TiO 2 nanocomposite was explored for glucose detection. Bis-Butyl viologen (BBV) was mixed with TiO 2 nanoparticles to generate highly dispersed nanocomposite solution, which provided organically modified nanocomposite film of TiO 2 (BBV-TiO 2). A transistor type sensor was fabricated using the BBV-TiO 2 film and platinum gate electrode. The BBV-TiO 2 nanocomposite sensor showed higher sensitivity to glucose sensing in low concentration region compared to that of TiO 2 sensor. This result was ascribed to facilitated electron transport by the adsorbed viologen molecules on TiO 2 nanoparticles, where viologen molecules act as an electron transfer mediator between enzyme and TiO 2.
All Science Journal Classification (ASJC) codes
- Biomedical Engineering
- Materials Science(all)
- Condensed Matter Physics