A carbon nanotube-based quartz crystal nanobalance for NH{sub}3 detection: toward the assembling of a sensing platform

摘要

Here we report the fabrication and the testing of a quartz crystal nanobalance (QCN) microsensor assembled using single-wall carbon nanotubes dispersed in a polymer matrix. The sensor was used for NH{sub}3 detection. The good performances of this sensor, characterized by a detection limit of 1 ppm and by fast response times, are compared with those of a resistive sensor assembled using the same SWNTs The research is aimed at combining different sensing devices based on carbon nanotubes for manufacturing a lab-on-chip hybrid system.