Artikel ; Online: Enzymatically mediated fluorescent copper nanocluster generation for tyramine determination.
Analytical and bioanalytical chemistry
2023 Band 415, Heft 11, Seite(n) 2037–2044
Abstract: This work details the enzymatic generation of fluorescence nanomaterials and the use of this optical signal as the analytical parameter for the quantification of the substrate. More specifically, fluorescent copper nanoclusters have been obtained during ... ...
Abstract | This work details the enzymatic generation of fluorescence nanomaterials and the use of this optical signal as the analytical parameter for the quantification of the substrate. More specifically, fluorescent copper nanoclusters have been obtained during the enzymatic reaction of tyramine oxidase and tyramine in the presence of Cu(II); the fluorescence intensity being proportional to the concentration of tyramine. The nanoclusters obtained show fluorescence at 445 nm by being excited at 320 nm and have been characterized by TEM, EDX, and XPS. The formation mechanism has also been studied, suggesting that under the optimal conditions (0.1 M MES buffer and pH = 6), the formation of the nanoclusters is due to the reducing properties of the product of the enzymatic reaction (p-hydroxybenzaldehyde) in MES buffer. The method shows a linear relationship with the concentration of tyramine in the range from 1.0·10 |
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Mesh-Begriff(e) | Metal Nanoparticles ; Copper/chemistry ; Fluorescent Dyes ; Spectrometry, Fluorescence/methods ; Tyramine/chemistry |
Chemische Substanzen | Copper (789U1901C5) ; Fluorescent Dyes ; Tyramine (X8ZC7V0OX3) |
Sprache | Englisch |
Erscheinungsdatum | 2023-02-10 |
Erscheinungsland | Germany |
Dokumenttyp | Journal Article |
ZDB-ID | 201093-8 |
ISSN | 1618-2650 ; 0016-1152 ; 0372-7920 |
ISSN (online) | 1618-2650 |
ISSN | 0016-1152 ; 0372-7920 |
DOI | 10.1007/s00216-023-04571-4 |
Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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