
November 11, 2014 15:52 PSP Book - 9in x 6in 11-Serge-Cosnier-c11
324 Transduction of Biochemical Reactions by Use of Quantum Dots
nanocrystals seem to compete with electrons from NADH. This also
means that the direction of the photocurrent generated can be
reversed by a chemical reaction. For NADH eventually a cathodic
photocurrent can be transformed into an anodic current at an
appropriate potential when the NADH concentration is high enough.
Since NADH is involved in many dehydrogenase reactions the
QD electrode system can be used to follow such catalytic reactions.
The amount of NADH produced in an enzymatic catalysis depends
directly on the concentration ...