scholarly journals Erratum: “Nanoceria based electrochemical sensor for hydrogen peroxide detection” [Biointerphases 9, 031011 (2014)]

2021 ◽  
Vol 16 (5) ◽  
pp. 058602
Author(s):  
Sanjeev Kumar Ujjain ◽  
Anubhav Das ◽  
Gaurav Srivastava ◽  
Preety Ahuja ◽  
Manas Roy ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Sensor ◽  
Hydrogen Peroxide Detection

scholarly journals Synthesis of Pd–Ni/C bimetallic materials and their application in non-enzymatic hydrogen peroxide detection

2017 ◽  
Vol 35 (3) ◽  
pp. 660-666 ◽  
Author(s):  
Hilal Celik Kazici ◽  
Firat Salman ◽  
Hilal Demir Kivrak
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Activity ◽  
Electrochemical Sensor ◽  
Ni Catalysts ◽  
Simple Route ◽  
Hydrogen Peroxide Detection ◽  
Peroxide Reduction ◽  
Hydrogen Peroxide Reduction ◽  
Electrocatalytic Effect ◽  
Bimetallic Materials

AbstractIn this study, carbon based bimetallic materials (Pd-Ni/C) were synthesized by polyol method in order to increase the hydrogen peroxide reduction catalytic activity of Pd using Ni metal. Hydrogen peroxide reduction and sensing properties of the prepared catalysts were measured by electrochemical methods. As a result, we have established that the addition of Ni at different ratios to Pd has a considerable electrocatalytic effect on H2O2 reduction. This work provides a simple route for preparation of Pd-Ni catalysts to create a very active and sensible electrochemical sensor for H2O2 sensing.

Nanoceria based electrochemical sensor for hydrogen peroxide detection

2014 ◽  
Vol 9 (3) ◽  
pp. 031011 ◽  
Author(s):  
Sanjeev Kumar Ujjain ◽  
Anubhav Das ◽  
Gaurav Srivastava ◽  
Preety Ahuja ◽  
Manas Roy ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Sensor ◽  
Hydrogen Peroxide Detection

Flexible electrochemical sensor based on laser scribed Graphene/Ag nanoparticles for non-enzymatic hydrogen peroxide detection

2019 ◽  
Vol 301 ◽  
pp. 127101 ◽  
Author(s):  
Eider Aparicio-Martínez ◽  
Adriana Ibarra ◽  
Iván A. Estrada-Moreno ◽  
Velia Osuna ◽  
Rocio B. Dominguez
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Sensor ◽  
Ag Nanoparticles ◽  
Hydrogen Peroxide Detection

scholarly journals High spatial resolution electrochemical biosensing using reflected light microscopy

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Raluca-Elena Munteanu ◽  
Ran Ye ◽  
Cristina Polonschii ◽  
Adrian Ruff ◽  
Mihaela Gheorghiu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Light Microscopy ◽  
Electrochemical Sensor ◽  
Oxidation State ◽  
Spatial Resolution ◽  
Polymer Mixtures ◽  
Redox Polymer ◽  
Hydrogen Peroxide Detection ◽  
Electrochemical Biosensing ◽  
Reflected Light

Abstract If the analyte does not only change the electrochemical but also the optical properties of the electrode/solution interface, the spatial resolution of an electrochemical sensor can be substantially enhanced by combining the electrochemical sensor with optical microscopy. In order to demonstrate this, electrochemical biosensors for the detection of hydrogen peroxide and glucose were developed by drop casting enzyme and redox polymer mixtures onto planar, optically transparent electrodes. These biosensors generate current signals proportional to the analyte concentration via a reaction sequence which ultimately changes the oxidation state of the redox polymer. Images of the interface of these biosensors were acquired using bright field reflected light microscopy (BFRLM). Analysis showed that the intensity of these images is higher when the redox polymer is oxidized than when it is reduced. It also revealed that the time needed for the redox polymer to change oxidation state can be assayed optically and is dependent on the concentration of the analyte. By combining the biosensor for hydrogen peroxide detection with BFRLM, it was possible to determine hydrogen peroxide in concentrations as low as 12.5 µM with a spatial resolution of 12 µm × 12 µm, without the need for the fabrication of microelectrodes of these dimensions.

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