
November 11, 2014 15:51 PSP Book - 9in x 6in 07-Serge-Cosnier-c07
200 Electrochemical DNA Sensors Based on Nanoparticles
and reduced imperfections do not exist in the corresponding bulk
materials [22], making them of interest in the design of DNA sensors.
Gold nanoparticles (Au NPs) are the most used NPs in biosensing,
not only of nucleic acids, but also of other biomolecules. Au NPs
have some unique features such as easy synthesis, a surface plasmon
resonance effect, catalytic activity, good biocompatibility, and easy
functionalization. In particular functionalization is essential in the
development of a biosensor, and in the case of Au NPs it happens ...