A dual-responsive colorimetric probe for the detection of Cu²⁺ and Ni²⁺ species in real water samples and human serum

Abstract

The monitoring of heavy transition metals has increasingly attracted great attention because they pollute the environment and have unique physiological functions.

Synthesis of Nopinone-Based Quinazolin-2-amine Fluorescent Probe for Detection of Cu2+and Its Application Research

“…Compared with traditional analytical methods including high-performance liquid chromatography (HPLC), [26] electrochemical analysis [27][28] and colorimetry, [29] the fluorescent chemosensor shows some unique merits, such as swift recognition speed, low development cost, good biocompatibility, and specificity, which are beneficial to developing the fluorescent probe for detecting Cu 2＋ in biology and environment. The previous Cu 2＋ fluorescent sensors were mainly based on some existing fluorophores, such as BODIPY, [30][31] rhodamine, [32][33] arylimidazole, [34][35] coumarin, [36][37] triphenylamine, [38] hemicyanine, [39][40] dansylhydrazine, [41][42] naphthalimide, [43][44][45] which lacked novelty more or less. Thus, it's necessary to design novel fluorescent sensors based on new fluorophores.…”

A Fluorogenic Triphenyl‐Amine‐Naphthyl‐Hydrazide Probe Selective for Cu2+ and Cysteine Detection via an ON‐OFF‐ON Logic path with Real Applications

“…Spectrofluorometric method is more convenient and approachable for detection of ions and molecules by qualitative and quantitative analysis owing to their interesting features such as easy modification, simplicity, cost effective and time saving over various known techniques such as redox titration, complexometric titrations, atomic absorption spectrometry, [8] inductively coupled plasma mass spectroscopy (ICPMS), [9] inductively coupled plasma-atomic emission spectrometry (ICPAES), and voltammetry which requires a much more costly and sophisticated management. [10,11] Design of chemosensors aimed at detection of ions and molecules are increasingly drawing attention in different fields of science and technology [12,13] Chemosensors based on Schiff base scaffold with Coumarin, [14][15][16] Rhodamine B, [17][18][19] Fluorescein, [20] Pyrrole, [21] derivatives has been used for Cu 2 + detection.…”