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The electron transfer of redox-active sites of immobilised haemoglobin (Hb) has been studied by voltammetric experiments. The electrode surface was modified by nanoparticles (NPs) to make a suitable substrate for electric wiring of protein molecules and efficient electron transferring. Hence, the Hb/zinc oxide NPs/platinum electrode was prepared by chronoamperometric deposition of the NPs and immobilisation...
This paper reports on the analytical performance of a disposable electrochemical sensor for the detection of hydrogen peroxide, using screen-printed carbon based electrodes (SPCEs) modified with a dispersion of multi-wall carbon nanotubes in chitosan (CHIT/MWCNT). The modified sensors showed an excellent electrocatalytic activity towards hydrogen peroxide, respect to the high overvoltage characterizing...
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