Biosensors Based on Selected Gold Nanoparticles
Pp. 149-162 (14)
Ram Singh, Geetanjali, Vinita Katiyar and S. Bhanumati
Biosensors are devices which comprise of a biological recognition element and a transducer
that is a physicochemical detector system. In other words, a biosensor is a sophisticated tool that
combines a biological component; a bioreceptor, with a physicochemical detector component; the
transducer, for the purpose of detection of an analyte. The transducer converts the information into a
measurable effect such as an electric signal which can be measured and quantified. The sensitivity of
biosensors can be improved and enhanced by changing the nano material in the construction. This field
of research is fast developing. A conceptual background of biosensors based on selected Gold
nanoparticles, their properties, synthesis, characterization and their associated uses has been described
in this chapter.
Gold nanoparticles; biosensors; smart nanoparticles; selectivity.
Department of Applied Chemistry, Delhi Technological University, Bawana Road, Delhi - 110 042, India