A highly selective chemosensor for colorimetric detection of Hg2+ and fluorescence detection of pH changes in aqueous solution

Ramasamy, Kavitha; Stalin, T.

doi:10.1016/j.jlumin.2013.11.044

Cited by 28 publications

(12 citation statements)

References 56 publications

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“…10 Aqueous HNQ solutions were also used to detect pH changes. 11 A cyanide and acetate sensor was implemented using HNQ optical properties. 12 It has been well established that sweat can be considered the diluted version of blood in terms of constituents such as electrolytes and minerals.…”

Section: Introductionmentioning

confidence: 99%

A portable optical human sweat sensor

Alomari

Liu

Mueller

et al. 2014

Journal of Applied Physics

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We describe the use of HNQ (2-hydroxy-1,4-naphthoquinone or Lawsone) as a potential sweat sensor material to detect the hydration levels of human beings. We have conducted optical measurements using both artificial and human sweat to validate our approach. We have determined that the dominant compound that affects HNQ absorbance in artificial sweat is sodium. The presence of lactate decreases the reactivity of HNQ while urea promotes more interactions of sodium and potassium ions with HNQ. The interactions between the hydroxyl group of HNQ and the artificial sweat components (salts, lactic acid, and urea) were investigated comprehensively. We have also proposed and developed a portable diode laser absorption sensor system that converts the absorbance at a particular wavelength range (at 455 ± 5 nm, where HNQ has an absorbance peak) into light intensity measurements via a photocell. The absorbance intensity values obtained from our portable sensor system agrees within 10.4% with measurements from a laboratory based ultraviolet-visible spectrometer. Findings of this research will provide significant information for researchers who are focusing on real-time, in-situ hydration level detection.

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Section: Introductionmentioning

confidence: 99%

A portable optical human sweat sensor

Alomari

Liu

Mueller

et al. 2014

Journal of Applied Physics

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“…With this sense, the spectral pattern of ion-interacted AA-AR was studied with respect to 16 metal cations (i.e. Li + , Na + , Ag + , Ca 2+ , Ba 2+ , Co 2+ , Cs + , Cu 2+ , Mg 2+ , Hg 2+ , Mn 2+ , Pb 2+ , Ni 2+ , Sr 2+ , Zn 2+ , Al 3+ ) and 15 ). Among the studied cations, Hg 2+ was the only one that had a considerably high impact on the absorption spectra of AA-AR.…”

Section: The Impact Of Some Common Cations and Anionsmentioning

confidence: 99%

“…For this reason, selective, sensitive, and rapid detection of mercury ions in various media is deemed important. Several analytical techniques such as voltammetry, atomic-absorption spectroscopy (AAS), inductively coupled plasma emission spectroscopy (ICP-AES), and potentiometric and spectrophotometric sensors have been utilized to detect trace levels of mercury ions [11][12][13][14][15]. Despite their widespread use, some of the mentioned techniques are generally laborintensive, and expensive when compared to fluorescence sensing techniques.…”

Section: Introductionmentioning

confidence: 99%

An Application of a Schiff-Base Type Reaction in the Synthesis of a New Rhodamine-Based Hg(II)-Sensing Agent

et al. 2019

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“…Various colorimetric [19][20][21] and fluorimetric sensors [22,23] have been designed to detect the presence of the hazardous element for its elimination from the environment. Schiff'sbases, [24] benzothiazoles, [25] thiosemicarbazide, [26] lawsone, [27] anthraquinone [28] moiety and others [29] were used to develop efficient mercury sensors in solution. Many fluorescent sensors have been reported to detect mercury in an aqueous solution [30,31] at low concentrations.…”

Section: Introductionmentioning

confidence: 99%

Reactions of 2,3-Dibromonaphthalene-1,4-Dione and Pyridyl Amines: X-ray Structures, DFT Investigations, and Selective Detection of the Hg2+ and Ni2+ Ions

Aggrwal¹,

Salunke‐Gawali²,

Gejji³

et al. 2021

Eng. Sci.

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In this work, the products formed by the reaction between 2,3-dibromonaphthalene-1,4-dione with (pyridine-2-yl)methanamine and (pyridine-4-yl)methanamine are discussed in detial.The products 2-amino-3-bromonaphthalene-1,4-dione (A) and 2-aminonaphthalene-1,4-dione (B(1)) obtained are characterized through 1 H and 13 C-NMR, FTIR, mass spectrometry, single-crystal X-ray diffraction experiments, which are in conjunction with wB97X based density functional theory. compound A can effectively and selectively detect Hg 2+ and Ni 2+ ions, and proposes a potential mechanism of action.

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A highly selective chemosensor for colorimetric detection of Hg2+ and fluorescence detection of pH changes in aqueous solution

Cited by 28 publications

References 56 publications

A portable optical human sweat sensor

A portable optical human sweat sensor

An Application of a Schiff-Base Type Reaction in the Synthesis of a New Rhodamine-Based Hg(II)-Sensing Agent

Reactions of 2,3-Dibromonaphthalene-1,4-Dione and Pyridyl Amines: X-ray Structures, DFT Investigations, and Selective Detection of the Hg2+ and Ni2+ Ions

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