Single Organic Ligands Act as a Bifunctional Sensor for Subsequent Detection of Metal and Cyanide Ions, a Statistical Approach toward Coordination and Sensitivity

Gul, Zarif; Salman, Muhammad; Khan, Shahab; Shehzad, Adnan; Ullah, Hussian; Irshad, Motia; Zeeshan, Muhammad; Batool, Sidra; Ahmed, Maryam; Altaf, Ataf Ali

doi:10.1080/10408347.2023.2186165

Cited by 15 publications

(5 citation statements)

References 76 publications

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“…In conclusion, the synthetic accessibility and the demonstrated complete interactions with Zn(II) ions make these promising polydentate ligands interesting candidates for chelation therapy, Zn(II) sensors and possibly in metal ion removal, as recently reported for similar innovative structures [58][59][60][61][62][63][64].…”

Section: Discussionmentioning

confidence: 52%

N-Based Polydentate Ligands and Corresponding Zn(II) Complexes: A Structural and Spectroscopic Study

Volpi,

Zago,

Rabezzana

et al. 2023

Inorganics

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Herein, the structural and photophysical features of two N-based polydentate ligands and the corresponding Zn(II) complexes are investigated. The obtained compounds were characterized using different spectroscopic techniques and their optical properties are discussed in relation to their chemical structure, defined by single-crystal X-ray diffraction and mass spectrometry. The spontaneous and quantitative complexation, investigated by UV-Vis, fluorescence, NMR, IR spectroscopies and mass spectrometry, makes these N-based polydentate ligands interesting candidates for possible applications in chelation therapy and in Zn(II) sensors.

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Section: Discussionmentioning

confidence: 52%

N-Based Polydentate Ligands and Corresponding Zn(II) Complexes: A Structural and Spectroscopic Study

Volpi,

Zago,

Rabezzana

et al. 2023

Inorganics

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“…Simultaneously, Au and Ag are known to be low-toxic and highly biocompatible metals, so this sensor is more user-friendly than optical sensors based on fluorescence switching. Sensors developed in recent years for CN – detection are mainly based on fluorescence on/off thanks to advantages such as high sensitivity, selectivity, and quick response. − However, the challenge of this method is choosing a luminous material and setting the procedures for monitoring changes in the fluorescence spectrum. Most organic fluorophores are toxic and are only soluble in organic solvents, thus causing limitations in the manufacturing process and practical applications .…”

Section: Resultsmentioning

confidence: 99%

“…The sensing process that relied on chemical reduction is quick and simple and required no additional cyanide identifiers or labels. Moreover, Au and Ag are known to be low-toxicity, highly biocompatible, and thus user-friendly compared to the sensors based on fluorescence quenching: The sensors developed in recent years for high sensitivity CN – detection that were mainly based on fluorescence on/off switching. − faced challenge of inevitable use of organic solvent for given organic fluorophores. This aspect caused limitation in easy manufacturing process and environment-friendly practical applications .…”

Section: Resultsmentioning

confidence: 99%

Ultrasensitive Monitoring of Cyanide Concentrations in Water Using a Au_core–Ag_shell Hybrid-Coating-Based Fiber Optical Sensor

Phuong,

Phung,

et al. 2023

Langmuir

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Cyanides, which are extremely toxic chemicals that are rapidly absorbed into the human body and interact with cytochrome oxidase, strongly inhibit cellular respiration to body death with convulsions. Cyanide ions that exist in many forms in nature such as those found in apricot kernels, cassava roots, and bamboo shoots as cyanogenic glycosides are inevitably used in various industries, including gold and silver mining as well as in dyes and plastic industries. In this study, for the sake of developing ultrahigh-sensitive sensors for cyanide monitoring in a simple manner, we chemically synthesize Au core −Ag shell hybrid nanomaterials of different core/shell thicknesses for colorimetric sensors and fiber optical sensors. Their sensing principle relies on the formation of the Ag/Au cyanocomplex upon cyanide injection. The generated metal cyanocomplex induced changes in refractive indices, causing changes in properties of localized surface plasmon resonance (LSPR), i.e., optical absorbance change for the colorimetric sensors. For fiber optical sensors, the hybrid metal nanoparticles were immobilized on the fiber core surface and the metal cyanocomplex formation induced changes in the fiber cladding refractive index, enabling quantitative cyanide detection with ultrahigh sensitivity. The LSPR-based colorimetric sensor provided the lowest detectable cyanide concentration of 5 × 10 −6 M, whereas the value for the fiber-based sensor was 8 × 10 −11 M.

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“…[6] Honey is a food that contains about 200 different chemical compounds. [7,8] These include sugars, water, proteins (enzymes), organic acids, vitamins (especially vitamin B6, thiamine, niacin, ribo avin, and pantothenic acid), minerals (including calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, and zinc) [9,10], pigments, phenolic compounds, a wide range of volatile compounds, and solid particles derived from various sources. [11] These nutrients play important roles in the functions of nucleic acids [12], due their intermolecular interactions.…”

Section: Introductionmentioning

confidence: 99%

Exploring Riboflavin Quantification in Honey via Spectrofluorimetry: A Statistical Examination of Influential Extrinsic Variables

Khan,

Khan

et al. 2024

Preprint

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The present study is focused on the collection of honey samples from the different geographical and climatic conditions of Khyber Pakhtunkhwa and analyzing them for determination of riboflavin. Quantification of riboflavin being natively fluorescent, was accomplished using spectrofluorimetric method. Riboflavin has characteristic fluorescence spectra with maximum excitation at 464 nm followed by an emission peak at 525 nm. The procedure followed in this work comprised the construction of a calibration curve by plotting the fluorescence intensity of a series of riboflavin solutions versus concentration. This curve was used for quantification of riboflavin in the collected honey samples. The effect of several external factors such as the altitude of the sampling area, type of honey bee, type of flowers from which the nectar was collected, and sampling season on the concentration of riboflavin in the honey samples was statistically evaluated. It was concluded that the samples collected from lower altitudes have high concentration (1.156±0.08 μg g-1) of riboflavin. Similarly, the samples collected in autumn were found to have a with a maximum average riboflavin concentration of 1.37±0.06 μg g-1, which was higher in comparison to the samples collected in other seasons of the year. Likewise, the effect of flora on the concentration of riboflavin was also investigated and it was found that honey samples collected from areas where the nectar was collected from Ziziphus contains maximum riboflavin concentration averaged at 1.383±0.1 μg g-1. Based on the size of the honey bees the samples collected from hives of small honey bees were found to have maximum riboflavin concentration of 1.176±0.07 μg g-1. This study suggests that beside the studied vitamin, the rest of the vitamins and other nutritional components may vary in the honey samples depending upon external factors.

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Single Organic Ligands Act as a Bifunctional Sensor for Subsequent Detection of Metal and Cyanide Ions, a Statistical Approach toward Coordination and Sensitivity

Cited by 15 publications

References 76 publications

N-Based Polydentate Ligands and Corresponding Zn(II) Complexes: A Structural and Spectroscopic Study

N-Based Polydentate Ligands and Corresponding Zn(II) Complexes: A Structural and Spectroscopic Study

Ultrasensitive Monitoring of Cyanide Concentrations in Water Using a Au_core–Ag_shell Hybrid-Coating-Based Fiber Optical Sensor

Exploring Riboflavin Quantification in Honey via Spectrofluorimetry: A Statistical Examination of Influential Extrinsic Variables

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Single Organic Ligands Act as a Bifunctional Sensor for Subsequent Detection of Metal and Cyanide Ions, a Statistical Approach toward Coordination and Sensitivity

Cited by 15 publications

References 76 publications

N-Based Polydentate Ligands and Corresponding Zn(II) Complexes: A Structural and Spectroscopic Study

N-Based Polydentate Ligands and Corresponding Zn(II) Complexes: A Structural and Spectroscopic Study

Ultrasensitive Monitoring of Cyanide Concentrations in Water Using a Aucore–Agshell Hybrid-Coating-Based Fiber Optical Sensor

Exploring Riboflavin Quantification in Honey via Spectrofluorimetry: A Statistical Examination of Influential Extrinsic Variables

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Ultrasensitive Monitoring of Cyanide Concentrations in Water Using a Au_core–Ag_shell Hybrid-Coating-Based Fiber Optical Sensor