Boron Doped Diamond (BDD) electrodes exhibit excellent properties including a
wide potential window in aqueous media, high corrosion resistance, chemical
inertness, bio-compatibility and low background current. In order to increase
their selectivity for analytical applications, several studies were carried out
recently on the possibility to deposit metal nanoparticles such as Pt or Ir on
such BDD electrodes1,2,3,4. Indeed these nanoparticles bring
interesting electro-catalytic properties to the electrodes, thus offering the
possibility to address new analytes. Here an electrode array was developed,
based on multiple BDD electrodes casted with various metal nanoparticles. The
simultaneous detection of analytes by each electrode composing the array gives
potentially a unique fingerprint to the analytes, thus increasing the
specificity and the selectivity of the sensor.