Optical and quantitative sensing capability of phenolphthalein derived Schiff base chromo-fluorogenic sensor for Cu2+
Yükleniyor...
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science SA
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Accurate tracking of Cu2+ is of major significance for several fields from human health to the environment and industry. Hence, well-organized, sensitive, and accurate methods for Cu2+ recognition in solutions are in special request. Herein, a novel phenolphthalein-based fluorogenic probe has been constructed by integrating a phenolphthalein-based building block with an amine-containing molecule. The probe was explored as a "switch -off" fluorogenic sensor for Cu2+ signaling in the presence of interfering cations in ionic concentrations and also displayed perfect selectivity/sensitivity toward Cu2+ and faster equilibrium response time than any other reported fluorogenic probes. As a sensing platform, the probe has a moderately experimental LOD of 84.0 nM Cu2+ in HEPES:CH3CN (v:v, 1:1, pH = 7). Binding affinity tests, MALDI-TOF MS techniques and theoretically DFT computations demonstrated that Cu2+ formed coordinate bonds with phenolic hydroxyl and -CH = N groups of FPAB. The probe was successfully utilized for Cu2+ sensing in the FPAB coated silica plates and cotton swabs. The present study offers a fast, visible, low-cost and precise process for Cu2+ sensing.
Açıklama
WOS:000894815100005
Anahtar Kelimeler
Copper(II), Fluorometric Sensor, Phenolphthalein, Test Kits
Kaynak
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
437
Sayı
Künye
Küçükbasmacı, H., Aydın, D. (2023). Optical and quantitative sensing capability of phenolphthalein derived Schiff base chromo-fluorogenic sensor for Cu2+. Journal of Photochemistry and Photobiology A: Chemistry, 437.
