A facile and sensitive ratiometric fluorescence sensor for rapid visual monitoring of trace resorcinol

Ren, Wei; Zhang, Ying; Liang, Wen Yong; Yang, Xiu Pei; Jiang, Wei Dong; Liu, Xiao Hong; Zhang, Wei

doi:10.1016/j.snb.2020.129390

Cited by 25 publications

(8 citation statements)

References 47 publications

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“…[35] 4) The design and implementation of a facile and sensitive ratiometric fluorescence sensor for trace resorcinols in the presence of red light-emitting Au nanoclusters (AuNCs) The ratiometric sensor, in the presence of gold nanoclusters, achieved the visual detection of as low as 5.0 nM resorcinols (Figure 8). [36] 5) The development of a fluorescence sensor for selective detection of Cu(II) and Hg(II) in aqueous solution based on the oxidative coupling of catechin with dopamine. In the case of Cu(II), oxidation of the catechol unit of azamonardine generates Cu(I) that is chelated by the resulting o-quinone (Figure 9).…”

Section: The Catecholamine Quinone-resorcinol Route To Strongly Emitting (Aza)monardine-type Chromophoresmentioning

confidence: 99%

Nature‐Inspired Functional Chromophores from Biomimetic o‐Quinone Chemistry

et al. 2021

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Dedicated to Professor Franco Cozzi on the occasion of his 70th birthday.A concise highlight of the main types of chromophoric systems obtained in the authors' and other laboratories through biomimetic chemistry or synthetic manipulation of natureinspired o-quinones is the primary focus of this Minireview. Following oxidative conversion of a variety of natural catechol substrates like DOPA, dopamine, 5-S-cysteinyldopa and caffeic acid, in the presence of suitable additives, a remarkable variety of chromophoric systems can be produced, which display specific optical and electronic properties, e. g. acidichromism, solvatochromism or strong emission upon excitation. Such properties can be tailored for specific applications through rational synthetic manipulations and/or fine-tuning through non-covalent and supramolecular interactions. Practical access routes to the reported o-quinone-derived chromophoric systems are illustrated along with the main prospective applications.

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Section: The Catecholamine Quinone-resorcinol Route To Strongly Emitting (Aza)monardine-type Chromophoresmentioning

confidence: 99%

Nature‐Inspired Functional Chromophores from Biomimetic o‐Quinone Chemistry

et al. 2021

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“…5 In order to prevent water contamination, a precise and quick approach is required for HQ detection. There are several analytical techniques that have been utilized to determine phenolic compounds: surface plasma resonance, 6 fluorescence, 7 spectrophotometry, 8 flow injection chemilumines-cence, 9 quartz crystal microbalance, spectrofluorimetry, 10 and gas chromatography/mass spectrometry. 11 However, these techniques require sophisticated instruments, sample precautions, and pre-treatment procedures such as separation, distillation, filtration, and adsorption.…”

Section: Introductionmentioning

confidence: 99%

2D-Graphitic Carbon Nitride Nanosheet/Metal Nanocomposites for Electrochemical Sensors of Hydroquinone in Real Sample Analysis

Murugan

Hwa

Santhan

2023

ACS Appl. Nano Mater.

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In the present work, we have investigated a low-cost fabrication method in preparing two-dimensional (2D) graphitic carbon nitride (g-C 3 N 4 ) with nanosheet/metal nanocomposites by a rapid calcination process. The synthesized metal/g-C 3 N 4 nanosheet was analyzed further by using UV− visible, Fourier transform-infrared spectroscopy (FTIR), powder X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDAX) with elemental analysis mapping. Through field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM), the metal/g-C 3 N 4 nanosheet was observed to have a porous nanostructure. X-ray diffraction patterns of the 2D-GCN nanostructure were confirmed to be of fine crystalline size. X-ray photoelectron spectroscopy provided qualitative and quantitative data about the structure of C 3 N 4 . An electrochemical performance was carried out by using cyclic and differential pulsed voltammetry techniques. The metal/g-C 3 N 4 nanosheet/nanocomposite was fabricated on the glassy carbon electrode (GCE) for electrochemical determination of hydroquinone (HQ). The electrocatalytic mechanism of HQ was scrutinized, which proved fast electron and ion transfer phenomena. The asprepared Ag/g-C 3 N 4 /GCE exposed greater performance with a low limit of detection (LOD) of 5.8 μM in a wide linear range from 0.99 to 999.96 μM, which shows better repeatability, reproducibility, stability and an outstanding selectivity. The Ag/g-C 3 N 4 /GCEfabricated electrode exhibited good sensitivity at 0.067 μA Mm −1 cm −2 . The proposed sensor additionally verified its practical feasibility in real-time monitoring on river and tap water samples with a satisfactory recovery.

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“…As referred to in previous works, the formed azamonardine structures accompany characteristic absorption around 415 nm. According to Figure S2 (Supporting Information), a new absorption peak of all three substrate solutions appeared around 419 nm, demonstrating the formation of azamonardine structures . The fluorescence quantum yields of the three resulting products were determined to be 53.1, 33.7, and 58.2%.…”

Section: Resultsmentioning

confidence: 98%

3,5-Dihydroxybenzoic Acid-Based Selective Dopamine Detection via Subsititution-Enhanced Kinetics Differences

Liu,

Cheng,

et al. 2023

Anal. Chem.

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The selective recognition of dopamine (DA) over other neurotransmitter analogues is difficult due to the similar molecular structure and chemical reactivity. In this study, substitution-regulated chemical reactivity of the sensing substrate is utilized to explore a novel DA detection probe with satisfying selectivity. As a case study, 3,5-dihydroxybenzoic acid (DHBA, carboxy-substituted resorcinol)-based probes have been explored for selective and ratiometric DA sensing. The carboxy substitution benefits the stabilization of the carbanion intermediate and the azamonardine product, which enhances the reaction kinetics and thermodynamics and subsequently facilitates selective DA recognition over other analogues and interferents. By exploring DHBA emission as the internal reference, ratiometric fluorescence variation is realized, which contributes to sensitive DA analysis. With the combination of logic gate and fluorometric analysis, DA detection in both low and high concentrations can be readily achieved. In addition, the DA analysis in biological samples and the enzymatic transformation of DA analogues in cerebrospinal fluid samples are achieved by the proposed DHBA probe.

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A facile and sensitive ratiometric fluorescence sensor for rapid visual monitoring of trace resorcinol

Cited by 25 publications

References 47 publications

Nature‐Inspired Functional Chromophores from Biomimetic o‐Quinone Chemistry

Nature‐Inspired Functional Chromophores from Biomimetic o‐Quinone Chemistry

2D-Graphitic Carbon Nitride Nanosheet/Metal Nanocomposites for Electrochemical Sensors of Hydroquinone in Real Sample Analysis

3,5-Dihydroxybenzoic Acid-Based Selective Dopamine Detection via Subsititution-Enhanced Kinetics Differences

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