Paper and nylon based optical tongues with poly(p-phenyleneethynylene)-fluorophores efficiently discriminate nitroarene-based explosives and pollutants
Discrimination of nitroarenes with hydrophobic dyes in a polar (H2O) environment is difficult but possible via a lab-on-chip, with polymeric dyes immobilized on paper or nylon membranes. Here arrays of 12 hydrophobic poly(p-phenyleneethynylene)s (PPEs), are assembled into a chemical tongue to detect...
Gespeichert in:
| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
15 August 2024
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| In: |
Talanta
Year: 2024, Jahrgang: 276, Pages: [1]-8 |
| ISSN: | 1873-3573 |
| DOI: | 10.1016/j.talanta.2024.126222 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.talanta.2024.126222 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0039914024006015 
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| Verfasserangaben: | Hoda Sharifi, Maximilian Elter, Kai Seehafer, Emanuel Smarsly, Bahram Hemmateenejad, Uwe H. F. Bunz |
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| 245 | 1 | 0 | |a Paper and nylon based optical tongues with poly(p-phenyleneethynylene)-fluorophores efficiently discriminate nitroarene-based explosives and pollutants |c Hoda Sharifi, Maximilian Elter, Kai Seehafer, Emanuel Smarsly, Bahram Hemmateenejad, Uwe H. F. Bunz |
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| 520 | |a Discrimination of nitroarenes with hydrophobic dyes in a polar (H2O) environment is difficult but possible via a lab-on-chip, with polymeric dyes immobilized on paper or nylon membranes. Here arrays of 12 hydrophobic poly(p-phenyleneethynylene)s (PPEs), are assembled into a chemical tongue to detect/discriminate nitroarenes in water. The changes in fluorescence image of the PPEs when interacting with solutions of the nitroarenes were recorded and converted into color difference maps, followed by cluster analysis methods. The variable selection method for both paper and nylon devices selects a handful of PPEs at different pH-values that discriminate nitroaromatics reliably. The paper-based chemical tongue could accurately discriminate all studied nitroarenes whereas the nylon-based devices represented distinguishable optical signature for picric acid and 2,4,6-trinitrotoluene (TNT) with high accuracy. | ||
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| 650 | 4 | |a Pattern recognition | |
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