Abstract
Breathomics is being explored as a non-invasive pathway for disease diagnosis. In this paper we describe the design and fabrication of an electrochemical transduction-based sensing scheme that can be used for the non-invasive diagnosis of respiratory inflammation by monitoring hydrogen peroxide (H2O2) vapors in breath. AuNP-nafion@[BMIM]BF4 modified electrode forms the backbone of the electrochemical sensor platform. This is the first report of an electrochemical sensor platform for assessing airway inflammation by monitoring H2O2 levels in the lower parts-per billion (50 ppb) range. We engineered the RTIL interaction with the target analyte through computational and chemical modeling. The results obtained via computational and electrochemical modeling helped in strengthening our premise and serve as a proof-of-concept for the advancement of a breathomics-aided electrochemical detection approach.
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