A simple fluorophore/surfactant ensemble as single discriminative sensor platform: Identifying multiple metal ions in aqueous solution

Liu, Huan; Fan, Junmei; Ding, Liping; Zhu, Bing; Huang, Xinyan; Gong, Weiwei; Xin, Yunhong; Fang, Yu

doi:10.1016/j.jphotochem.2016.05.013

Cited by 15 publications

(13 citation statements)

References 32 publications

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“…As evidenced by our previous work, surfactant assemblies can modulate the fluorescence emission of pyrenebased fluorophores. 22,23,29 Thus, the modulation effect of SDS assembles on the fluorescence emission of PB was evaluated in aqueous solutions. As shown in Figure 2a, SDS assemblies can also significantly adjust the fluorescence emission of the present probe.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The other binary ensemble is based on a monopyrene fluorophore and SDS assemblies, which could differentiate 7 quenching metal ions. 22 To further enhance the discrimination power of such binary ensemble sensing systems, we specially introduced a metal receptor unit to the pyrene fluorophore. The specially designed and synthesized fluorophore, bis(2-picolyl)amine-modified pyrene derivative (PB), is shown in Scheme 1.…”

mentioning

confidence: 99%

“…We have been interested in using surfactant assemblies modulating the fluorescence emission of a fluorophore with multiple emission bands to develop discriminative sensors. − The variation of aggregation states of amphiphilic surfactant assemblies can well modulate the fluorescence emission of the encapsulated fluorophores. , Thus, analyte-induced aggregation changes of surfactant assemblies could be signaled by the fluorophores . The combination of fluorescence variations at different emission wavelengths of such single sensor ensembles could generate recognition fingerprint for the tested analytes.…”

mentioning

confidence: 99%

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Fluorescent Binary Ensemble Based on Pyrene Derivative and Sodium Dodecyl Sulfate Assemblies as a Chemical Tongue for Discriminating Metal Ions and Brand Water

et al. 2017

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Enormous effort has been put to the detection and recognition of various heavy metal ions due to their involvement in serious environmental pollution and many major diseases. The present work has developed a single fluorescent sensor ensemble that can distinguish and identify a variety of heavy metal ions. A pyrene-based fluorophore (PB) containing a metal ion receptor group was specially designed and synthesized. Anionic surfactant sodium dodecyl sulfate (SDS) assemblies can effectively adjust its fluorescence behavior. The selected binary ensemble based on PB/SDS assemblies can exhibit multiple emission bands and provide wavelength-based cross-reactive responses to a series of metal ions to realize pattern recognition ability. The combination of surfactant assembly modulation and the receptor for metal ions empowers the present sensor ensemble with strong discrimination power, which could well differentiate 13 metal ions, including Cu, Co, Ni, Cr, Hg, Fe, Zn, Cd, Al, Pb, Ca, Mg, and Ba. Moreover, this single sensing ensemble could be further applied for identifying different brands of drinking water.

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Section: ■ Results and Discussionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Fluorescent Binary Ensemble Based on Pyrene Derivative and Sodium Dodecyl Sulfate Assemblies as a Chemical Tongue for Discriminating Metal Ions and Brand Water

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“…This peak signies the Si-O-Si modes and hence can be attributed to the presence of oxygen moieties at the surface of silicon nanoparticles. 31,37,38 3.2. Transmission electron microscopy (TEM), dynamic light scattering (DLS), and energy-dispersive X-ray uorescence (EDXRF)…”

Section: Structural and Morphological Characterizationmentioning

confidence: 99%

“…However, the change in lifetime was not in proportion to the change in intensity as observed from steady state uorescence spectroscopy and hence it can be due to the combined effect of dynamic and static quenching. 37,38,49 All the tting parameters are given in Table 1. The change in morphology aer addition of Fe(III) ions was also studied using transmission electron microscopy (TEM) and the image is shown in Fig.…”

Section: Lifetime Measurement and Morphology Of Sinpsmentioning

confidence: 99%

Facile green synthesis of silicon nanoparticles from Equisetum arvense for fluorescence based detection of Fe(iii) ions

et al. 2020

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A General Strategy for Food Traceability and Authentication Based on Assembly‐Tunable Fluorescence Sensor Arrays

Cheng,

Liu,

Tian

et al. 2024

Advanced Science

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Food traceability and authentication systems play an important role in ensuring food quality and safety. Current techniques mainly rely on direct measurement by instrumental analysis, which is usually designed for one or a group of specific foods, not available for various food categories. To develop a general strategy for food identification and discrimination, a novel method based on fluorescence sensor arrays is proposed, composed of supramolecular assemblies regulated by non‐covalent interactions as an information conversion system. The stimuli‐responsiveness and tunability of supramolecular assemblies provided an excellent platform for interacting with various molecules in different foods. In this work, five sensor arrays constructed by supramolecular assemblies composed of pyrene derivatives and perylene derivatives are designed and prepared. Assembly behavior and sensing mechanisms are investigated systematically by spectroscopy techniques. The traceability and authentication effects on several kinds of food from different origins or grades are evaluated and verified by linear discriminant analysis (LDA). It is confirmed that the cross‐reactive signals from different sensor units encompassing all molecular interactions can generate a unique fingerprint pattern for each food and can be used for traceability and authentication toward universal food categories with 100% accuracy.

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A simple fluorophore/surfactant ensemble as single discriminative sensor platform: Identifying multiple metal ions in aqueous solution

Cited by 15 publications

References 32 publications

Fluorescent Binary Ensemble Based on Pyrene Derivative and Sodium Dodecyl Sulfate Assemblies as a Chemical Tongue for Discriminating Metal Ions and Brand Water

Fluorescent Binary Ensemble Based on Pyrene Derivative and Sodium Dodecyl Sulfate Assemblies as a Chemical Tongue for Discriminating Metal Ions and Brand Water

Facile green synthesis of silicon nanoparticles from Equisetum arvense for fluorescence based detection of Fe(iii) ions

A General Strategy for Food Traceability and Authentication Based on Assembly‐Tunable Fluorescence Sensor Arrays

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