Multiwalled Carbon Nanotubes as platforms for the design of Biosensors

Carbon Nanotubes (CNT) have attracted a huge interest in the research community due to their unique properties: good electrical conductivity, excellent mechanical properties and chemical stability. An interesting phenomena is the fact that CNT change their electrical properties depending on the absorbates on the surface. This is being exploited for the use of CNT as sensor platforms. In this work, the growth and chemical functionalisation of aligned CNT arrays for the development of electrochemical sensors is presented. The CNT growth process and surface has been tailored to maximise the interaction of the CNTs with the electrolyte. The possible use of the active bio-nano-sensors for mobile monitoring will be discussed in the context of a remote wireless sensors suitable to be integrated for long term patient monitoring, as well as long-haul driver/pilot situations