An erythrosin B-based “turn on” fluorescent sensor for detecting perfluorooctane sulfonate and perfluorooctanoic acid in environmental water samples

Cheng, Zhen; Du, Lingling; Zhu, Panpan; Chen, Qian; Tan, Kejun

doi:10.1016/j.saa.2018.05.013

Cited by 30 publications

(21 citation statements)

References 29 publications

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“…In the case of erythrosine B ( Figure 3 e) and rose bengal ( Figure 3 f), the emission spectra did not change, but the absorption spectra have a clear blue shift. A similar shift in the absorption spectra was previously reported when rose bengal was attached to collagen [ 34 ] and when erythrosine B interacted with different surfactants [ 35 , 36 ].…”

Section: Resultssupporting

confidence: 82%

Versatile Covalent Postsynthetic Modification of Metal Organic Frameworks via Thermal Condensation for Fluoride Sensing in Waters

et al. 2021

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Having access to safe drinking water is one of the 17 sustainable development goals defined by the United Nations (UN). However, many settlements around the globe have limited access to drinkable water due to non-anthropogenic pollution of the water sources. One of those pollutants is fluoride, which can induce major health problems. In this manuscript, we report on a post synthetic functionalization of metal organic frameworks for the sensing of fluoride in water. The proposed thermal condensation methodology allows for a high yield of functionalization using few steps, reducing reagent costs and generating minimal by-products. We identified a Rhodamine B functionalized Al-BDC-NH2 metal organic framework as one particularly suitable for fluoride detection in water.

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Section: Resultssupporting

confidence: 82%

Versatile Covalent Postsynthetic Modification of Metal Organic Frameworks via Thermal Condensation for Fluoride Sensing in Waters

et al. 2021

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“…1,12 Besides, the sensitized fluorescence quenching effect might be attributed to the SDBS adsorbed on the pores of UCNPs@COFs, which could induce more PFOS to enter the pores due to the hydrogen bonding interaction between perfluoroalkyl and dodecyl groups. 14,42 In addition, collisional quenching of fluorescence can be described by the Stern–Volmer equation, and the plots of F 0 / F vs the concentration of the quencher are expected to be linear. Herein, linear Stern–Volmer plots and the absence of fluorescence spectra shifts suggested that the fluorescence quenching might be a dynamic process (Figure S7).…”

Section: Results and Discussionmentioning

confidence: 99%

Surfactant-Sensitized Covalent Organic Frameworks-Functionalized Lanthanide-Doped Nanocrystals: An Ultrasensitive Sensing Platform for Perfluorooctane Sulfonate

Zhang

Yin

et al. 2019

ACS Omega

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Perfluorooctane sulfonate (PFOS) known as a persistent organic pollutant has been attracting great interests due to its potential ecotoxicity. An approach capable of sensing ultra-trace PFOS is in urgent demand. Here, we developed an approach for highly sensitive sensing PFOS using surfactant-sensitized covalent organic frameworks (COFs)-functionalized upconversion nanoparticles (UCNPs) as a fluorescent probe. COFs-functionalized UCNPs (UCNPs@COFs) were obtained by solvothermal growth of 1,3,5-triformylbenzene and 1,4-phenylenediamine on the surface of UCNPs. COF’s layer on the surface of UCNPs not only provides recognition sites for PFOS but also improves the fluorescence quantum yields from 2.15 to 5.12%. Trace PFOS can quench the fluorescence emission of UCNPs@COFs at 550 nm due to the high electronegativity of PFOS. Moreover, the fluorescence quenching response can be significantly strengthened in the presence of a surfactant, which causes more sensitivity. The fluorescence quenching degrees (F0 – F) of the system are linear with the concentration of PFOS in the range of 1.8 × 10–13 to 1.8 × 10–8 M. The present sensor can sensitively and selectively detect PFOS in tap water and food packing with the limit of detection down to 0.15 pM (signal-to-noise ratio = 3), which is comparable to that of the liquid chromatography–mass spectrometry technique. The proposed approach realized a simple, fast, sensitive, and selective sensing PFOS, showing potential applications in various fields.

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“…For example, a photoluminescence-based sensor made of molecularly imprinted polymer-coated quantum dots has been used for the enrichment and determination of PFOA in water with the LOD of 11.8 nM. 22 Being highly porous and luminescent, luminescent MOFs (LMOFs) have considerable potential for simultaneous pre-concentration, detection and removal of fluorine containing species. Often a single LMOF may be capable of detecting different kinds of pollutants with different response behaviors.…”

Section: Introductionmentioning

confidence: 99%

A switchable sensor and scavenger: detection and removal of fluorinated chemical species by a luminescent metal–organic framework

et al. 2021

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An erythrosin B-based “turn on” fluorescent sensor for detecting perfluorooctane sulfonate and perfluorooctanoic acid in environmental water samples

Cited by 30 publications

References 29 publications

Versatile Covalent Postsynthetic Modification of Metal Organic Frameworks via Thermal Condensation for Fluoride Sensing in Waters

Versatile Covalent Postsynthetic Modification of Metal Organic Frameworks via Thermal Condensation for Fluoride Sensing in Waters

Surfactant-Sensitized Covalent Organic Frameworks-Functionalized Lanthanide-Doped Nanocrystals: An Ultrasensitive Sensing Platform for Perfluorooctane Sulfonate

A switchable sensor and scavenger: detection and removal of fluorinated chemical species by a luminescent metal–organic framework

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