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Mendeley readers
| Title |
Poly(methylene blue)-modified electrode for indirect electrochemical sensing of OH radicals and radical scavengers
|
|---|---|
| Published in |
Anais da Academia Brasileira de Ciências, September 2017
|
| DOI | 10.1590/0001-3765201720160833 |
| Pubmed ID | |
| Authors |
Walter A Braun, Bruna C Horn, Lucélia Hoehne, Simone Stülp, Marcelo B DA Rosa, Maurício Hilgemann |
| Abstract |
A new modified electrode for indirect sensing of OH· and radical scavengers was described. The electrochemical polymerization of methylene blue in aqueous solutions and the properties of the resulting films on a glassy carbon electrode were carried out using cyclic voltammetry. A surface coverage of 1.11 × 109mol cm2 was obtained, revealing a complete surface coverage of the polymeric film on the electrode surface. OH· was able to destroy the poly(methylene blue) film by exposure to a Fenton solution. The loss of the electrochemical signal of the residual polymeric film attached to the electrode surface was related to the extent of its dissolution. The applicability of the sensor was demonstrated by evaluating the OH radical scavenging effect on different concentrations of ascorbic acid. The obtained radical scavenging capacity were 31.4%, 55.7%, 98.9% and 65.7% for the ascorbic acid concentrations of 5, 10, 30 and 50 mM, respectively. |
Mendeley readers
The data shown below were compiled from readership statistics for 25 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 25 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 3 | 12% |
| Professor | 3 | 12% |
| Student > Bachelor | 3 | 12% |
| Professor > Associate Professor | 2 | 8% |
| Student > Master | 2 | 8% |
| Other | 6 | 24% |
| Unknown | 6 | 24% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 8 | 32% |
| Materials Science | 3 | 12% |
| Agricultural and Biological Sciences | 2 | 8% |
| Nursing and Health Professions | 1 | 4% |
| Environmental Science | 1 | 4% |
| Other | 4 | 16% |
| Unknown | 6 | 24% |