A new multifunctional Schiff base as a fluorescence sensor for Fe2+ and F− ions, and a colorimetric sensor for Fe3+

Wan, Chin Feng; Chang, Ya Ju; Chien, Chih Yu; Sie, Yi Wun; Hu, Ching Han; Wu, An Tai

doi:10.1016/j.jlumin.2016.05.039

Cited by 31 publications

(4 citation statements)

References 43 publications

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“…In recent times, considering the manifold advantages of high sensitivity, easy operation, and high speed, fluorescent detection techniques have been recognized as promising and powerful tools for quantitative detection. Some fluoride sensors have been developed, such as multifunctional Schiff base fluorescent sensor, 7 silyl capped hydroxylpyrenealdehyde-based colorimetric and fluorescence dual-readout sensor, 8 and calix [4]arene-based colorimetric and fluorescence dual-readout sensors. 9 However, all of the above sensors use traditional fluorescence probes as sensitive material and signal element, which exhibit fluorescence with a Stokes shift: they emit shortwavelength light (higher energy photons) under excitation with long-wavelength light (lower energy photons).…”

Section: ■ Introductionmentioning

confidence: 99%

Development of an Inner Filter Effects-Based Upconversion Nanoparticles–Curcumin Nanosystem for the Sensitive Sensing of Fluoride Ion

Liu

Ouyang

et al. 2017

ACS Appl. Mater. Interfaces

109

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This paper describes a novel ratiometric fluorescence-based sensor for the detection of fluoride ion. Yb, Er, and Tm codoped NaYF upconversion nanoparticles (UCNPs), which can emit fluorescence at 546, 657, 758, and 812 nm under the 980 nm single wavelength excitation, were synthesized, amino-modified and applied as the fluorescent signal indicator. The natural chemical curcumin served as specific recognition element and mixed with UCNPs to make a nanosystem. In this nanosystem, the absorption peak of curcumin shows a bathochromic shift when F was added, causing an upconversion fluorescence quenching at 546 and 657 nm through inner filter effects (IFE), whereas the upconversion emission at 758 and 812 nm remained unchanged. Thus, the fluorescence ratio I/I was inversely proportional to F concentration. Meanwhile, the large absorption bathochromic shift also lead to a color change, based on the colorimetric analysis of F by the naked eye. Under the optimized conditions, the developed UCNPs-curcumin mixed system achieved the colorimetric and ratiometric fluorescence sensing toward F in the linear range of 25-200 μM and 5-200 μM, with the detection limits as low as 25 μM (ca. 0.48 ppm) and 5 μM (ca. 0.10 ppm), respectively. The developed nanosystem also has high selectivity and antijamming ability. Furthermore, this method showed promising practical applications in spiked real samples (ex., tap water and milk) with recoveries of 79.58% to 134.02% and RSD values in the range of 0.94% to 22.11%, which confirmed its great potential in harmful substance detection.

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Section: ■ Introductionmentioning

confidence: 99%

Development of an Inner Filter Effects-Based Upconversion Nanoparticles–Curcumin Nanosystem for the Sensitive Sensing of Fluoride Ion

Liu

Ouyang

et al. 2017

ACS Appl. Mater. Interfaces

109

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“…9(a), the Au/Bi2S3@TiO2 NTAs with different Fe 3+ ions concentrations have obvious absorption peaks at 353 nm, and with the increase of Fe 3+ ions concentration, the absorption peaks are increasing. The increase indicates that the Fe 3+ ions have strong interaction with the Au/Bi2S3@TiO2 NTAs, further explaining that the Au/Bi2S3@TiO2 NTAs and Fe 3+ ions are formed by the ground state complex, which results from the surface of the Au/Bi2S3@TiO2 NTAs absorbed by Fe 3+ ions [63,64] . As can be seen from Fig.…”

Section: Resultsmentioning

confidence: 96%

TiO2 nanotube arrays decorated with Au and Bi2S3 nanoparticles for efficient Fe3+ ions detection and dye photocatalytic degradation

Huang

Shen

et al. 2020

Journal of Materials Science & Technology

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Due to increasingly serious environmental problems, many researchers are investigating green clean-energy to solve the world's energy supply issues. So a strategy that Au nanoparticles (Au NPs) and bismuth sulfide (Bi2S3) NPs are used to evenly decorate TiO2 nanotube arrays (TiO2 NTAs) was carried out. Composite materials demonstrated enhanced solar light absorption ability and excellent photoelectrochemical performance. This was attributed to the presence of Bi2S3 NPs with a narrow band gap and the decoration with noble metallic Au NPs which resulted in local surface plasmon resonance (LSPR) effects. The Au/Bi2S3@TiO2 NTAs composites exhibit improved photocatalytic activity for the degradation of methylene blue (MB) under irradiation of UV and visible light. Moreover, the Au/Bi2S3@TiO2NTAs exhibits high fluorescence emission at 822 nm. Due to the better binding affinity between Bi2S3, TiO2 and Fe 3+ ions, the synthesized nanocomposites exhibit high selectivity to Fe 3+ ions. The number of binding sites for Au/Bi2S3@TiO2 NTAs was estimated to be 1.41 according to the double logarithmic regression method. The calculated value of "K" was 1862 M -1 . Fluorescence emission intensity decreases with increasing concentration (30 μM to 5000 μM). The detection limit of the synthesized sensor is 0.221 µM.

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“…Simple probe- 111 for the sensing of Fe( ii ) based on pyrene conjugated with a Schiff base was synthesised by Wu et al in 2016. 253 Probe- 111 (Fig. 166) was synthesized via a reaction between 2-aminobenzenethiol and pyrene-1-carbaldehyde in MeOH under reflux conditions for 12 h, which was confirmed via NMR and HRMS.…”

Section: Schiff Base-based Fluorescent Turn-on Probes For Fe(ii)/fe(i...mentioning

confidence: 90%

An overview of Schiff base-based fluorescent turn-on probes: a potential candidate for tracking live cell imaging of biologically active metal ions

et al. 2023

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A new multifunctional Schiff base as a fluorescence sensor for Fe2+ and F− ions, and a colorimetric sensor for Fe3+

Cited by 31 publications

References 43 publications

Development of an Inner Filter Effects-Based Upconversion Nanoparticles–Curcumin Nanosystem for the Sensitive Sensing of Fluoride Ion

Development of an Inner Filter Effects-Based Upconversion Nanoparticles–Curcumin Nanosystem for the Sensitive Sensing of Fluoride Ion

TiO2 nanotube arrays decorated with Au and Bi2S3 nanoparticles for efficient Fe3+ ions detection and dye photocatalytic degradation

An overview of Schiff base-based fluorescent turn-on probes: a potential candidate for tracking live cell imaging of biologically active metal ions

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