Development of a dual-analyte fluorescent sensor for the determination of bioactive nitrite and selenite in water samples

Martínez-Tomé, María José; Esquembre, Rocío; Mallavia, Ricardo; Mateo, C. Reyes

doi:10.1016/j.jpba.2009.02.016

Cited by 21 publications

(12 citation statements)

References 46 publications

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“…To solve this problem, Martínez-Tomé et al 43 designed a fluorescent Se(IV) probe that contains a sol-gel matrix in which a complex of DAN and 2-hydroxypropylb-cyclodextrin (HP-b-CD) is immobilized. This sol-gel matrix probe can be used for quantifying Se(IV) concentrations at submicromolar levels with a minimum detection limit of 13 nM and without the need for sample pre-or post-treatment.…”

Section: Fluorescent Probes For Se(iv)mentioning

confidence: 99%

Fluorescent Probes Containing Selenium as a Guest or Host

Chen

Kwon

et al. 2016

Chem

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Selenium is an important trace element in living systems. Proteins incorporating selenium have a wide range of biological effects, ranging from anti-oxidant and antiinflammatory effects to the production of active thyroid hormones. In the past decades, selenium has drawn enormous attention because of its important role in biology, which can be ascribed partly if not solely to its redox and hard and soft donor properties. With the use of chemical mimicry, a large number of seleniumrelated fluorescent probes have been developed for monitoring physiological and pathological processes. This review, which summarizes recent progress made in this area, comprises two major sections. In the first section, fluorescent probes for selenium-containing species, such as selenocysteine (Sec), hydrogen selenide, thioredoxin reductases (TrxRs), and selenite, are described. This is followed by a discussion of fluorescent probes that contain selenium and detect reactive oxygen, nitrogen, and sulfur species, as well as cations and anions.

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Section: Fluorescent Probes For Se(iv)mentioning

confidence: 99%

Fluorescent Probes Containing Selenium as a Guest or Host

Chen

Kwon

et al. 2016

Chem

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“…In previously published research, the use of toxic and waterinsoluble complex forming reagents has been the main requirement for the determination of inorganic selenium by uorometry. The common reagents used are 3,3-diaminobenzidine, 3,4 o-phenylenediamine, 5 2,3-diaminonaphthalene, [6][7][8][9][10] and 3,3-diaminobenzidine-capped silica nanoparticles. 11 Each of them has its own merits, but each method also offers some problems such as limited sample adaptability (need a large amount of organic solvent), high cost (the commercial reagent is expensive), well-controlled experimental conditions, complicated sample-pretreatment, some inherent interference (NO 2 À , SO 3 2À , etc.)…”

Section: àmentioning

confidence: 99%

Highly selective speciation and fluorimetric determination of Se(iv) in infant formulas using micelle-capped nile blue A

Zhu

Liu

et al. 2013

RSC Adv.

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“…The BPS was formed through the reaction between the selenite ion (Se(IV)O 3 2− ) and DAN ligand as shown in Scheme 1. 26,49 All aqueous solutions were prepared with ultrapure water (>18. Japan) solution of 6.3 × 10 −3 M (0.1%) was made with 0.1 M HCl.…”

Section: ■ Introductionmentioning

confidence: 99%

Development of Real-Time Analysis System of Selenium Ion in Solutions by Using Microextraction and Fluorescence Microscopy

Brandt

Tsukahara

2021

ACS Earth Space Chem.

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The development of advanced analytical methods for trace amounts of selenium (Se) ions in wastewater become a matter of great importance in avoiding biological and environmental burdens due to Se pollution. In this study, a simple microanalytical methodology was developed, enabling the rapid and highly efficient extraction, real-time monitoring in situ, and extraction kinetic analysis of Se(IV) ions. The microscale extraction and analysis was verified by means of fluorescence intensity changes of fluorogenic complex 4,5-benzopiazselenol (BPS) consisting of the coordination of Se(IV) with 2,3-diaminonaphthalene (DAN). After the optimal BPS formation conditions, including pH, temperature, and Se(IV)/DAN concentration ratio, were examined, the microscale extraction of BPS was carried out under aqueous and organic two-phase parallel flow regimes in Y-shaped microchannels. The fluorescence intensity profiles of BPS in the organic phase were scanned in situ along the flow direction in the microchannel by a fluorescence microscope. The residence time dependence of the BPS concentrations could be precisely detected in real time. The results show that the developed microsystem has not only a detection limit of a submicromolar level for Se(IV), which is sufficiently lower than the permeable limit concentration of selenium in wastewater, but also a large apparent extraction rate constant of approximately 0.3 s–1 and a short time to reach equilibrium of approximately 20 s, compared to those of bulk-scale extraction. This would indicate a valuable technique for elucidating microfluidic extraction kinetics and for applying real-time, environmentally friendly monitoring of toxic selenium ions.

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Development of a dual-analyte fluorescent sensor for the determination of bioactive nitrite and selenite in water samples

Cited by 21 publications

References 46 publications

Fluorescent Probes Containing Selenium as a Guest or Host

Fluorescent Probes Containing Selenium as a Guest or Host

Highly selective speciation and fluorimetric determination of Se(iv) in infant formulas using micelle-capped nile blue A

Development of Real-Time Analysis System of Selenium Ion in Solutions by Using Microextraction and Fluorescence Microscopy

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