Abstract
Three-dimensional superstructures, multilayer-arrays consisting of Au-nanoparticles (13 ± 1 nm) and crosslinked by microperoxidase-11 (MP-11), were assembled on transparent ITO conductive glass supports. The structures of the assemblies were confirmed by spectroscopic and electrochemical analyses, which revealed that each Au-particle is associated with ca. 50 MP-11 molecules. The multilayered MP-11/Au-particle systems act as electrocatalysts for the reduction of H2O2. The number of MP-11 | Au-particle layers associated with the electrode controls the resulting electrocatalytic currents. The controllable number of MP-11 | Au-particle layers associated with the electrode enables the control of the effectiveness of the electrocatalytic process and tuning of the sensitivity of the H2O2-sensing interface.
Original language | English |
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Pages (from-to) | 69-73 |
Number of pages | 5 |
Journal | Journal of Electroanalytical Chemistry |
Volume | 479 |
Issue number | 1 |
DOIs | |
State | Published - 22 Dec 1999 |
Keywords
- Au-colloids
- Electrocatalysis
- Microperoxidase
- Modified electrodes
- Nanoparticles