
564 Nanosensors: Physical, Chemical, and Biological
Review Exercises
9.1 What is a chemical nanosensor? How does it differ from any macro-
scopic chemical sensor? Elaborate the statement “Detection of chemical
processes on a single molecule scale is the ultimate goal of sensitive
analytical assays.”
TABLE 9.1
Diversity of Chemical Sensors
Sl.
No. Name of the Nanosensor
Sensed
Quantity/
Applications
Nanomaterial/
Nanostructure
Used Sensing Principle
1. Metallic nanoparticle-based
gas sensor
Gas Metallic
nanoparticle
Conductivity change
(chemiresistor)
2. Metal oxide (MOX) gas
sensor
Gas Metal oxide
nanoparticle
Conductivity change
(chemiresistor)
3. Carbon ...