Azo dye-based optical probe for the detection toward mimic molecule of date rape drug

Ryu, Jiwon; Manivannan, Ramalingam; Son, Young‐A

doi:10.1016/j.microc.2021.106237

Cited by 8 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Coumarin-azo derivative AD1 was synthesized by a four-step reaction procedure following reported literature. [59][60][61][62] The formation of coumarin-azo derivative AD1 was elucidated by, 1 H NMR, 13 characteristic N=N vibration is proposed between 1250-1550 cm -1 in the FT-IR spectra. 63,64 The azo-bond may not always be clearly identi able due to overlapping with characteristic aromatic bands.…”

Section: Synthesis and Characterization Of Azo-compound Ad1mentioning

confidence: 99%

A Coumarin-azo Derived Colorimetric Chemosensor for Hg2+ Detection in Organic and Aqueous Media and its Extended Real-world Applications

2022

View full text Add to dashboard Cite

Pollution caused by the release of toxic heavy metals into the environment by industrial and farming processes has been regarded as a major problem worldwide. This has attracted a great deal of attention into restoration and remediation. Mercury is classi ed as a toxic heavy metal which has posed signi cant challenges to public and environmental health. To date, conventional methods for mercury detection rely on expensive, destructive, complex, and highly specialized methods. Evidently, there is a need to develop systems capable of easily identifying and quantifying mercury within the environment. In this way, organic-based colorimetric chemosensors are gaining increasing popularity due to their high sensitivity, selectivity, cost-effectiveness, ease of design, naked-eye, and on-site detection ability. The formation of coumarin-azo derivative AD1 was carried out by a conventional diazotization reaction with coumarinamine 1c and N,N-dimethylaniline. Sensor AD1 displayed remarkable visual colour change upon mercury addition with appreciable selectivity and sensitivity. The detection limit was calculated as 0.24 µM.Additionally, the reversible nature of AD1 allowed for the construction of an IMPLICATION type logic gate and Molecular Keypad Lock. Chemosensor AD1 displayed further sensing applications in real-world water samples and towards on-site assay methods. Herein, we describe a coumarin-derived chemosensor bearing an azo (N = N) functionality for the colorimetric and quantitative determination of Hg 2+ in organic and aqueous media.

show abstract

Section: Synthesis and Characterization Of Azo-compound Ad1mentioning

confidence: 99%

A Coumarin-azo Derived Colorimetric Chemosensor for Hg2+ Detection in Organic and Aqueous Media and its Extended Real-world Applications

2022

View full text Add to dashboard Cite

show abstract

“…Organic optical sensors with large p-conjugated systems have attracted considerable attention by virtue of their facile preparation, adjustable spectral bands, convenient molecular modi-cation, and selective recognition ability. [1][2][3][4][5] A series of organic chemosensors have been constructed with excellent sensing performances for environmental protection and pollution detection, such as rhodamine, 6,7 luminol, 8,9 squaraine, 10 uorescein, 11 azo dye, 12 Schiff base, 13 and their derivatives. [14][15][16] The results suggest that there are different ways to improve the optical activity of these organic sensors with superior sensing performance, i.e., extending the p-conjugated length, introducing push and pull electronic structure, strengthening molecular planarity, modifying donor and acceptor, or optimizing bridging groups.…”

Section: Introductionmentioning

confidence: 99%

A high-performance fluorescent and ratiometric colorimetric detection of Cu²⁺ in practice

Hu,

Sun,

Cheng

et al. 2023

Anal. Methods

View full text Add to dashboard Cite

show abstract

“…Conventional methods of drug analysis such as chromatography [2], immunochromatography [3], mass spectrometry (MS) [4], nuclear magnetic resonance (NMR) [5], ultraviolet-visible spectroscopy (UV-Vis) [6], Fourier-transform infrared spectroscopy (FTIR) and IR [7], surface-enhanced Raman spectroscopy (SERS) and Raman [8], circular dichroism (CD) spectroscopy [9], and spectrofluorimetry [10], which can offer accurate and precise results, often lack portability, and can suffer from lengthy run times, high costs and complicated operation. Thus, new methods capable of providing rapid, specific responses whilst being cost effective and easy to use are still required [11,12].…”

Section: Introductionmentioning

confidence: 99%

Graphene-Based Electrochemical Sensors for Psychoactive Drugs

Boroujerdi

Paul

2022

Nanomaterials

View full text Add to dashboard Cite

Sensors developed from nanomaterials are increasingly used in a variety of fields, from simple wearable or medical sensors to be used at home to monitor health, to more complicated sensors being used by border customs or aviation industries. In recent times, nanoparticle-based sensors have begun to revolutionize drug-detection techniques, mainly due to their affordability, ease of use and portability, compared to conventional chromatography techniques. Thin graphene layers provide a significantly high surface to weight ratio compared to other nanomaterials, a characteristic that has led to the design of more sensitive and reliable sensors. The exceptional properties of graphene coupled with its potential to be tuned to target specific molecules have made graphene-based sensors one of the most popular and well-researched sensing materials of the past two decades with applications in environmental monitoring, medical diagnostics, and industries. Here, we present a review of developments in the applications of graphene-based sensors in sensing drugs such as cocaine, morphine, methamphetamine, ketamine, tramadol and so forth in the past decade. We compare graphene sensors with other sensors developed from ultrathin two-dimensional materials, such as transition-metal dichalcogenides, hexagonal boron nitrate, and MXenes, to measure drugs directly and indirectly, in various samples.

show abstract

Azo dye-based optical probe for the detection toward mimic molecule of date rape drug

Cited by 8 publications

References 29 publications

A Coumarin-azo Derived Colorimetric Chemosensor for Hg2+ Detection in Organic and Aqueous Media and its Extended Real-world Applications

A Coumarin-azo Derived Colorimetric Chemosensor for Hg2+ Detection in Organic and Aqueous Media and its Extended Real-world Applications

A high-performance fluorescent and ratiometric colorimetric detection of Cu²⁺ in practice

Graphene-Based Electrochemical Sensors for Psychoactive Drugs

Contact Info

Product

Resources

About

Azo dye-based optical probe for the detection toward mimic molecule of date rape drug

Cited by 8 publications

References 29 publications

A Coumarin-azo Derived Colorimetric Chemosensor for Hg2+ Detection in Organic and Aqueous Media and its Extended Real-world Applications

A Coumarin-azo Derived Colorimetric Chemosensor for Hg2+ Detection in Organic and Aqueous Media and its Extended Real-world Applications

A high-performance fluorescent and ratiometric colorimetric detection of Cu2+ in practice

Graphene-Based Electrochemical Sensors for Psychoactive Drugs

Contact Info

Product

Resources

About

A high-performance fluorescent and ratiometric colorimetric detection of Cu²⁺ in practice