A chemically robust amine-grafted Zn(ii)-based smart supramolecular gel as a regenerative platform for trace discrimination of nitro-antibiotics and assorted environmental toxins

Abstract

Chemically robust Zn(ii) supramolecular gel assembled with strategically appended triazole –NH2 moieties has been utilized as a recyclable, multisensory probe to detect assorted environmental pollutants.

Advances in 4-Nitrophenol Detection and Reduction Methods and Mechanisms: An Updated Review

“…This approach is advantageous in detecting specific substances that exhibit light-emitting properties when excited by an energy source, such as ultraviolet (UV) light. Photoluminescence involves the absorption of energy (e.g., by ultraviolet light) by specific compounds in the sample, followed by light emission when these compounds return to their lower energy state. ,, Light emission can be detected and measured, providing information on the presence and concentration of compounds of interest, as shown in Figure . Our group synthesized carbon dots selective to 4-NP using citric acid and urea, obtaining a detection limit of 2 μM.…”

Triazine Core Anchored Lanthanide Driven Soft Gels: Photo Switching Emission, Robust Anticounterfeiting, and Smart Sensor Probe for Nitroexplosive/Nitrofuran Antibiotics

“…44,45 Similar to LnMOFs, lanthanide-based soft gel materials have captivated the attention of researchers regarding the detection of analytes. 46 The efficiency of the lanthanide-based luminescent sensor in the presence of water is complicated, as excited-state energy transfer via coupling with O−H oscillators of water molecules stimulates quenching of the luminescence. 47 Therefore, it is crucial to develop an effective sensor that can selectively detect TNP and NFAs from aqueous media.…”

“…Although there has been significant research using metal–organic frameworks (MOFs) as fluorophore probes for detecting different environmental hazards, the application of CSGs for such purposes is still in its early stages . There are a limited number of CSGs that have been described as probes for the detection of toxins. , Similar to LnMOFs, lanthanide-based soft gel materials have captivated the attention of researchers regarding the detection of analytes . The efficiency of the lanthanide-based luminescent sensor in the presence of water is complicated, as excited-state energy transfer via coupling with O–H oscillators of water molecules stimulates quenching of the luminescence .…”

A coordination driven ‘heat-set’ Zr-gel: efficient fluorophore probe for selective detection of Fe3+ and nitrofuran-based antibiotics and smart approach for UV protection

“…Recently, Mitra and co-workers reported amine-grafted zinc-based supramolecular gels that are capable of detecting Fe 3+ ions and NFT antibiotics at the ppm level in aqueous medium (the LOD values for Fe 3+ and NFT were 6.13 ppm and 4.62 ppm, respectively, with high K SV values). 35 Jiang et al used a naphthalimide-based gel to selectively detect Fe 3+ ions with LOD value of 6.96 Â 10 À8 M. 36 A pillar [5]arene-based CPG material was reported by Zhang et al for nanomolar detection of Fe 3+ (0.102 nM). 37 Gupta and co-workers reported numerous LMWGs, one of which was able to detect antibiotics at the nanomolar level (150 nM for NFT antibiotics with a high K SV value of 2.3 Â 10 À4 M).…”