Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
Turn-on colorimetric Cu2+ sensing using a polynorbornene–rhodamine paper strip. |
| Συγγραφείς: |
Edayath, Anagha1 (AUTHOR), Das, Narayan1 (AUTHOR), Gautam, Srishti1 (AUTHOR), Shunmugam, Raja1 (AUTHOR) sraja@iiserkol.ac.in |
| Πηγή: |
Journal of Macromolecular Science: Pure & Applied Chemistry. 2026, Vol. 63 Issue 9, p1083-1090. 8p. |
| Θεματικοί όροι: |
*Copper analysis, *Polymers, *Environmental monitoring, *Rhodamines, *Metal analysis, *Charge transfer, *Colorimetry |
| Περίληψη: |
Metals are crucial to the functioning of all living organisms, as they are involved in key processes such as catalysis, metabolism, and signaling. Copper is one of these metals that can cause health issues in living organisms when it accumulates excessively in the environment. This overaccumulation often results from industrial mishandling and the natural abundance of copper. To address these problems, we developed a colorimetric probe based on polynorbornene-derived paper strips (PNRh) that rapidly detects copper(II) ions with high selectivity and sensitivity. PNRh shows a prominent color change from colorless to pink in the presence of copper(II) ions and a red-shifted absorption maximum at 560 nm. The limit of detection (LOD) is 80 nM, due to the formation of a ligand-to-metal charge transfer (LMCT) complex between PNRh and copper ions. To improve practical use, we developed paper strips coated with PNRh for the immediate detection of copper(II) ions in field settings. To our knowledge, PNRh is an economical, highly selective, sensitive, and paper strip-based colorimetric sensor for in-field copper ion detection. [ABSTRACT FROM AUTHOR] |
| Βάση Δεδομένων: |
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