Highly sensitive fiber grating chemical sensors: An effective alternative to atomic absorption spectroscopy

Laxmeshwar, Lata S.; Jadhav, Mangesh S.; Akki, Jyoti F.; Raikar, Prasad; Kumar, Jitendra; Prakash, Om; Raikar, U. S.

doi:10.1016/j.optlastec.2016.11.025

Cited by 18 publications

(9 citation statements)

References 9 publications

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“…Ligand 4,4′-OBA takes either a μ 4 -κ 2 O,O′:κ 2 O″,O‴ (4) or a μ 3 -κ 2 O,O′:κ 1 O″,O‴ (4 and 5) coordination mode. Zinc centers hold a tetrahedral (1, 2, 3), a square pyramidal (1), a trigonal-bipyramidal (2,4,5), or a tetragonal pyramid (4) coordination geometry. Ligand 1,4bpyvna and the representative complex 2 can be used for the "naked eye" detection of low-concentration Hg 2+ with high selectivity and sensitivity.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…With this question in mind, we delicately chose and prepared a bpeb analogue, 1,4-bis(2-(pyridin-4-yl)vinyl)naphthalene (1,4-bpyvna), in which a larger π-conjugated naphthalene group replaces the central phenyl group in bpeb. Its reactions with Zn(NO 3 ) 2 • 6H 2 O in the presence of 1,3,5-benzenetricarboxylic acid (1,3,5-H 3 BTC) or 4,4′-oxidibenzoic acid (4,4′-H 2 OBA) under different solvothermal conditions gave rise to five unique CPs [Zn 2 (1,4…”

Section: ■ Introductionmentioning

confidence: 99%

“…Mercury ion is one of such pollutants because it is highly toxic, mobile and bioaccumulates in the ecosystem and has a role in environmental pollution. − How to detect very low concentrations of Hg 2+ in laboratory model systems and even in nature systems has been and continues to be a big challenge. Currently, various technologies for detection of Hg 2+ including atomic absorption spectroscopy, atomic fluorescence spectrometry, liquid chromatography, mass spectroscopy, gas chromatography, capillary electrophoresis, and inductively coupled plasma-mass spectrometry , have been developed. Among these techniques, luminescence-based detection techniques − for probing Hg 2+ have been widely used due to their following advantages, i.e., rapid response, high sensitivity, easy operation, and visualization.…”

Section: Introductionmentioning

confidence: 99%

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1,4-Bis(2-(pyridin-4-yl)vinyl)naphthalene and Its Zinc(II) Coordination Polymers: Synthesis, Structural Characterization, and Selective Luminescent Sensing of Mercury(II) Ion

et al. 2017

Crystal Growth & Design

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Solvothermal reactions of Zn(NO3)2·6H2O with 1,4-bis(2-(pyridin-4-yl)vinyl)naphthalene (1,4-bpyvna) and 1,3,5-benzenetricarboxylic acid (1,3,5-H3BTC) (molar ratio = 1:1:1) at 120 °C in CH3CN/H2O (v/v = 1:2) afforded one three-dimensional (3D) coordination polymer [Zn2(1,4-bpyvna)(1,3,5-HBTC)2(H2O)] n (1). Similar reactions with the same three components at 140 °C in dimethylformamide (DMF)/CH3CN/H2O produced another 3D coordination polymer {[Zn2(1,4-bpyvna)(1,3,5-BTC)(OH)]·H2O} n (2) in 72% yield. When the molar ratio of Zn(NO3)2·6H2O, 1,4-bpyvna, and 1,3,5-H3BTC was changed to 1:1:2, the analogous treatment at 140 °C yielded one one-dimensional coordination polymer {[Zn(1,3,5-HBTC)2(H2O)][1,4-bpyvna-H2]·CH3CN} n (3, 1,4-bpyvna-H2 = 4,4′-((1,1′)-naphthalene-1,4-diylbis(ethene-2,1-diyl))bis(pyridin-1-ium)). Solvothermal reactions of Zn(NO3)2·6H2O with equimolar 1,4-bpyvna and 1 or 2 equiv of 4,4′-oxidibenzoic acid (4,4′-H2OBA) at 120 °C in DMF/CH3CN/hexane resulted in the formation of {[Zn2(1,4-bpyvna)(4,4′-OBA)2]·0.5DMF·2.25H2O} n (4) and {[Zn2(1,4-bpyvna)(4,4′-OBA)2]·3DMF} n (5), respectively. Compounds 1–5 were characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction, single-crystal X-ray diffraction, and thermogravimetric analysis. Upon addition of Hg2+ ions to the DMF solution of 1,4-bpyvna, remarkable changes in the absorbance and emissive spectra were observed, associated with color changes, which were easily identified by the naked eye. This ligand could serve as a chemoprobe with the detection limit of Hg2+ being 0.060 ppm. When solid 2 was added in the DMF solution containing Hg(NO3)2, the emission color of 2 was also changed from blue to yellow, and its detection limit of Hg2+ was as low as 0.057 ppm. This compound can be reused for several cycles without evident efficiency decay. Compound 2 would be a promising sensitive naked-eye indicator for low-concentration Hg2+ with high sensitivity and selectivity.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

1,4-Bis(2-(pyridin-4-yl)vinyl)naphthalene and Its Zinc(II) Coordination Polymers: Synthesis, Structural Characterization, and Selective Luminescent Sensing of Mercury(II) Ion

et al. 2017

Crystal Growth & Design

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“…Due to increased levels of Zn 2+ in water systems, several analytical techniques such as atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), inductively coupled plasma mass spectrometry (ICP‐MS), X‐ray fluorescence (XRF), and electrochemical methods have been used to monitor Zn 2+ ion levels, however these types of techniques are highly time consuming and expensive. Therefore, the development of a new method for Zn 2+ ion detection in environmental and biological systems is a critical need.…”

Section: Introductionmentioning

confidence: 99%

Phenothiazine–rhodamine‐based colorimetric and fluorogenic ‘turn‐on' sensor for Zn²⁺ and bioimaging studies in live cells

et al. 2019

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A phenothiazine-rhodamine (PTRH) fluorescent dyad was synthesized and its ability to selectively sense Zn 2+ ions in solution and in in vitro cell lines was tested using various techniques. When compared with other competing metal ions, the PTRH probe showed the high selectivity for Zn 2+ ions that was supported by electronic and emission spectral analyses. The emission band at 528 nm for the PTRH probe indicated the ring closed form of PTRH, as for Zn 2+ ion binding to PTRH, the λ em get shift to 608 nm was accompanied by a pale yellow to pink colour (under visible light) and green to pinkish red fluorescence emission (under UV light) due to ring opening of the spirolactam moiety in the PTRH ligand. Spectral overlap of the donor emission band and the absorption band of the ring opened form of the acceptor moiety contributed towards the fluorescence resonance energy transfer ON mechanism for Zn 2+ ion detection. The PTRH sensor had the lowest detection limit for Zn 2+ , found to be 2.89 × 10 −8 M. The sensor also demonstrated good sensing application with minimum toxicity for in vitro analyses using HeLa cells.

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“…Fiber optic devices, especially fiber gratings, play an important role in optical communication and optical sensing applications [6,8,15]. Compared with single mode fiber gratings, microstructured optical fiber grating (MOFG) is one of the latest generation of gratings [1,8,14], which has many advantages, such as wide spectrum reflection peak, large dynamic tuning range, and easy design and fabrication [1].…”

Section: Introductionmentioning

confidence: 99%

Simulation on the Optical Field Characteristics of Grating Inscription in a Hybrid Microstructured Optical Fiber

Jiang¹

2018

IJPE

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A method that utilizes a fluid-filled elliptical hole configuration to improve the efficiency and quality of grating inscription in a microstructured optical fiber was proposed and analyzed. The quantitative influence of inscription beam, elliptical size, fiber parameter, and fluid index on the grating inscription was analyzed. In addition, the feasibility of utilizing a symmetrical elliptical hole configuration and a rotating inscription technique to modify the inscription energy distribution near the core region during inscription was also discussed. Simulation results show that the optimized hybrid microstructured optical fiber configuration could achieve three times of the inscription efficiency than that of a single-mode fiber.

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Highly sensitive fiber grating chemical sensors: An effective alternative to atomic absorption spectroscopy

Cited by 18 publications

References 9 publications

1,4-Bis(2-(pyridin-4-yl)vinyl)naphthalene and Its Zinc(II) Coordination Polymers: Synthesis, Structural Characterization, and Selective Luminescent Sensing of Mercury(II) Ion

1,4-Bis(2-(pyridin-4-yl)vinyl)naphthalene and Its Zinc(II) Coordination Polymers: Synthesis, Structural Characterization, and Selective Luminescent Sensing of Mercury(II) Ion

Phenothiazine–rhodamine‐based colorimetric and fluorogenic ‘turn‐on' sensor for Zn²⁺ and bioimaging studies in live cells

Simulation on the Optical Field Characteristics of Grating Inscription in a Hybrid Microstructured Optical Fiber

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Highly sensitive fiber grating chemical sensors: An effective alternative to atomic absorption spectroscopy

Cited by 18 publications

References 9 publications

1,4-Bis(2-(pyridin-4-yl)vinyl)naphthalene and Its Zinc(II) Coordination Polymers: Synthesis, Structural Characterization, and Selective Luminescent Sensing of Mercury(II) Ion

1,4-Bis(2-(pyridin-4-yl)vinyl)naphthalene and Its Zinc(II) Coordination Polymers: Synthesis, Structural Characterization, and Selective Luminescent Sensing of Mercury(II) Ion

Phenothiazine–rhodamine‐based colorimetric and fluorogenic ‘turn‐on' sensor for Zn2+ and bioimaging studies in live cells

Simulation on the Optical Field Characteristics of Grating Inscription in a Hybrid Microstructured Optical Fiber

Contact Info

Product

Resources

About

Phenothiazine–rhodamine‐based colorimetric and fluorogenic ‘turn‐on' sensor for Zn²⁺ and bioimaging studies in live cells