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In this paper, a facile and low-cost “pencil-drawing” method is exploited for writing electrodes on filter paper to fabricate an electrochemical paper-based analytical device. Unlike other techniques using inks or pastes, the three-electrode system can be prepared directly by drawing with nothing more than pencils and paper. The optimization using ferricyanide as the redox probe showed that the device...
The anodic electrochemiluminescence (ECL) of dissolved oxygen with 2‐(dibutylamino) ethanol (DBAE) on platinum electrode has been reported previously by our group. Interestingly, the ECL intensity can be greatly amplified at TiO2 nanoparticles modified platinum electrode (TiO2/Pt), which is due to the catalytic effect of TiO2 nanoparticles to electrochemical oxidation of DBAE. It is the first case...
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