Enzyme-free modified electrodes
In addition to other characteristics, nanoparticles exhibit
electrocatalytic behavior that can potentially substitute for
enzyme-free oxidation of targets of interest. By avoiding
the use of enzymes the cost of sensors can be reduced
and shelf-life increased. More significantly, by omitting
the enzyme it is possible to sterilize the sensor as part of
Clean-in-Place procedures common to the fermentation industry (Warriner et al., 2002). Ethanol and glucose have
been the main target of interest due to medical significance
although is also relevant for monitoring the progress of
fermentations.