An eosin Y-based “turn-on” fluorescent sensor for detection of perfluorooctane sulfonate

Liang, Jiaman; Deng, Xiaoyan; Tan, Kejun

doi:10.1016/j.saa.2015.05.069

Cited by 45 publications

(27 citation statements)

References 33 publications

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“…However, the long analysis time and requirement of expensive instrumentation hinders the application of these techniques in high-throughput screening of environmental samples. There have been limited studies on the development of simple, inexpensive, and sensitive optical methods (e.g., via fluorescence or colorimetric changes) for the detection of PFOS 22 and PFOA 23,24 . Furthermore, the lack of a specific receptor design can limit the sensitivity and selectivity of these optical detection methods 25 .…”

Section: Introductionmentioning

confidence: 99%

Guanidinocalix[5]arene for sensitive fluorescence detection and magnetic removal of perfluorinated pollutants

et al. 2019

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Perfluorinated alkyl substances, such as perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), are toxic materials that are known to globally contaminate water, air, and soil resources. Strategies for the simultaneous detection and removal of these compounds are desired to address this emerging health and environmental issue. Herein, we develop a type of guanidinocalix[5]arene that can selectively and strongly bind to PFOS and PFOA, which we use to demonstrate the sensitive and quantitative detection of these compounds in contaminated water through a fluorescent indicator displacement assay. Moreover, by co-assembling iron oxide nanoparticle with the amphiphilic guanidinocalix[5]arene, we are able to use simple magnetic absorption and filtration to efficiently remove PFOS and PFOA from contaminated water. This supramolecular approach that uses both molecular recognition and self-assembly of macrocyclic amphiphiles is promising for the detection and remediation of water pollution.

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Section: Introductionmentioning

confidence: 99%

Guanidinocalix[5]arene for sensitive fluorescence detection and magnetic removal of perfluorinated pollutants

et al. 2019

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“…PEI has a large number of amino groups, which play a role as electron donors. Meanwhile, Eosin Y, a xanthene dye with redox capability, can act as an electron acceptor [ 44 , 45 ]. Therefore, the photoinduced electron transfer between Eosin Y and PEI is the reason for the red shift of λ max .…”

Section: Resultsmentioning

confidence: 99%

Laser-Assisted Direct Grafting of Poly(ethyleneimine) on Poly(methyl methacrylate)

et al. 2022

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Demand for direct chemical modification of functional material on a surface is increasing in various fields. A new approach for a functionalized surface is investigated by applying a conventional laser in order to generate chemical activation by photothermal energy. Poly(ethyleneimine) (PEI), with a high density of amino groups, is chemically grafted on poly(methyl methacrylate) (PMMA) by irradiation of a CO2 laser (10.6 μm). Laser parameters such as power, scan rate, and focal length are observed to play an important role in order to introduce effective photothermal energy for the chemical reaction between PEI and PMMA. By optimization of laser parameters, the amide compound is produced as a result of the reaction of amine from PEI and the ester of PMMA successfully. The PMMA surface modified with PEI is analyzed by XPS and TOF-SIMS to identify the functional groups. Furthermore, the surface is characterized in terms of wettability, adhesion force, and surface charge for various applications. Finally, reaction with dye and metal on the amine-terminated PMMA shows promising results in supplying a selective and reliable functional substrate.

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“…Switch "off-on" of eosin Y fluorescence Perfluorooctane sulfonate (PFOS) (Liang, Deng & Tan, 2015) was determined in aqueous solution based on the "off-on" switch of eosin Y/polyethyleneimine (PEI) fluorescence system. In Britton-Robinson buffer solution (pH 7.0), eosin Y reacted with protonated PEI to form complex which resulted in a strong quenching of the native fluorescence of eosin Y.…”

Section: Catalytic Spectrofluorimetric Methodsmentioning

confidence: 99%

“…The nuclei will appear blue to dark violet in color by hematoxylin, and the eosin Y solution will stain the cytoplasm and intercellular substances red-orange. Almost all of the reported analytical method utilizing eosin reaction are based on the formation of an association complex between the dye and the analyte, with few exceptions (Srividya & Balasubramanian, 1997;Liang, Deng & Tan, 2015). The reaction was carried out mainly in slightly acidic medium.…”

Section: Introductionmentioning

confidence: 99%

Application of a xanthene dye, eosin Y, as spectroscopic probe in chemical and pharmaceutical analysis; a review

Derayea

Nagy

2018

Reviews in Analytical Chemistry

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Abstract Eosin Y (EY) is an acidic xanthene dye which is mainly used in food stuff and biological staining. Various analytical methods have been reported for the utility of this dye in the quantitative determination of several pharmaceutical compounds, heavy metals in addition to some surfactants and proteins. Most of the applied methods were based on the formation of association complexes between eosin Y and the target analytes in buffered aqueous solutions. The present article represents a comprehensive review for the use of eosin Y as a probe in analytical chemistry.

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An eosin Y-based “turn-on” fluorescent sensor for detection of perfluorooctane sulfonate

Cited by 45 publications

References 33 publications

Guanidinocalix[5]arene for sensitive fluorescence detection and magnetic removal of perfluorinated pollutants

Guanidinocalix[5]arene for sensitive fluorescence detection and magnetic removal of perfluorinated pollutants

Laser-Assisted Direct Grafting of Poly(ethyleneimine) on Poly(methyl methacrylate)

Application of a xanthene dye, eosin Y, as spectroscopic probe in chemical and pharmaceutical analysis; a review

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