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A multichannel single-well sensor array for rapid and visual discrimination of catecholamine neurotransmitters
, Article Sensors and Actuators, B: Chemical ; Volume 296 , 2019 ; 09254005 (ISSN) ; Hormozi Nezhad, M. R ; Maaza, M ; Sharif University of Technology
Elsevier B.V
2019
Abstract
In this study, for rapid identification and discrimination of catecholamine neurotransmitters in the presence of ascorbic acid (AA), a tricolor fluorescence probe has been constructed by integrating three recognition elements including blue carbon dots (bCDs), green CdTe quantum dots (gQDs) and red CdTe quantum dots (rQDs) into a single well. The proposed array exhibited ternary fluorescence emissions at 450, 520 and 630 nm with an overall luminescent pink emission under a single wavelength excitation (365 nm). In order to produce distinct response patterns from a single fluorimetric test, the spectral changes and the corresponding color variations of the multichannel fluorescence probe were...