
158 Nanosensors: Physical, Chemical, and Biological
devices on a single chip. It may be carefully noted that increasing the propor-
tion of nanosensor device fabrication process using CNTs is being referred
to, not the CNT production process itself, which was the focus of attention
in the previous discussion. For this purpose, accurate assembly of single-
nanotube devices with an integration density of several million devices per
square centimeter is mandatory. Therefore, for CNT sensors to become a
reality, it is very important to scale up the fabrication technique to simulta-
neously and reproducibly fabricate a very large number of ...