A brief review on novel pyrene based fluorometric and colorimetric chemosensors for the detection of Cu²⁺

Abstract

This review article provides a detailed overview of pyrene containing colorimetric and fluorometric chemosensors based on different binding mechanisms which fulfill the criteria of affinity, selectivity and sensitivity.

Functionalized graphene oxide materials for the fluorometric sensing of various analytes: a mini review

“…The chemical species enriched with fluorescent characteristics that enable interaction with the analyte and signalling through easily measurable properties, including electrical, electronic, thermal, magnetic, and, in particular, optical changes, are named as fluorescent chemosensors. [1][2][3][4] In general, optical signalling chemosensors are designed based on the photophysical changes upon the detection of various kinds of analytes, such as metal cations, anions, neutral molecules, and small biological scaffolds via the supramolecular hostguest chemistry [5][6][7][8][9] Moreover, fluorescent chemosensors have acquired considerable attention on account of their promising onsight and quick detection with a low limit of detection for analytes. Hence, a chemical intercessor element (responsible for the analyte detection) and a transducer (responsible for measurable signal conversion) are two major functional units required for producing signals upon the binding of various analytes to prove its presence by the way of photophysical property changes (absorption, fluorescence, relaxivity, etc.).…”

Colorimetric Method for Instant Detection of Lysine and Arginine Using Novel Meldrum's Acid‐Furfural Conjugate

“…[22] Pyrene based fluorescent chemosensor of lysine was reported by Yoon and Lee et al, where they have seen a unique color change from light yellow to pink due to imine formation. [23] Various modification on pyrene sensor were reported, [24,25] however, due to its metabolite binding tendency to DNA [26] alternative sensor probes are continuously searched. Recently, a non-toxic thymol based BODIPY was explored as chemosensor for lysine detection with 0.01 μm colorimetric detection limit.…”

Rhodol‐derived turn‐on fluorescent probe for copper ions with high selectivity and sensitivity

“…[1] Copper is an important essential trace element in human beings, and play a pivotal role in the basic process of life. [2][3][4][5] If content of copper exceed cellular needs, it will show the high toxicity to some organisms, and there are reported to be associated with some neurodegenerative diseases, for instance, familial amyotrophic lateral sclerosis, Menkes' disease and Wilson's disease, prion diseases, Alzheimer's disease. [6][7][8][9][10] Among various kinds important environmental analytes, copper ions attract increasing attention recently due to its potential effect on environment such as connected with the water self-purification ability and the biological reprocessing systems in water as well.…”