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Fabrication on an electrochemical sensor for no detection

Grant number: 19/23206-0
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2019
Effective date (End): May 31, 2021
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Mauro Bertotti
Grantee:Ana Caroline Belarmino Barros
Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:18/08782-1 - Miniaturized and integrated chemical sensors: new fabrication platforms for biological, clinical and environmental applications, AP.TEM


This research project aims at the fabrication of platinum microelectrodes which will be used as electrochemical sensors for NO detection. In order to improve the sensitivity of the analytical determinations, strategies involving the platinization of the microelectrode surface will be investigated. Since NO coexists with other electroactive compounds in biological fluids, protocols for sensor surface protection will be examined to avoid the diffusion of interfering species to the electrode surface. Calibration curves will be prepared to establish a correlation between current response and NO concentration in solution. Other relevant analytical parameters such as repeatability, reproducibility and detection limit will also be determined for the evaluation of the sensor performance.

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