Highly selective detection of Pd2+ ion in aqueous solutions with rhodamine-based colorimetric and fluorescent chemosensors

Tang, Fung-Kit; Chan, Sing-Ming; Wang, Tao; Kwan, Chak‐Shing; Huang, Regina; Cai, Zongwei; Leung, Ken Cham‐Fai

doi:10.1016/j.talanta.2019.120634

Cited by 26 publications

(9 citation statements)

References 46 publications

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“…Our group previously reported a FRET based fluorescent chemosensor incorporating a coumarin donor fluorophore with a rhodamine acceptor fluorophore for detection of Pd 2 + . [15] However, we envisaged that developing a second generation Pd 2 + sensor with higher sensitivity could be achieved through the marriage of a boron dipyrromethene (BODIPY) donor and rhodamine acceptor due to improved spectral overlap; the typical emission of BODIPY is ca. 510-550 nm whilst the general emission of rhodamine is ca.…”

Section: Introductionmentioning

confidence: 99%

A Piperazine Linked Rhodamine‐BODIPY FRET‐based Fluorescent Sensor for Highly Selective Pd²⁺ and Biothiol Detection

Tang

Chen

Tritton

et al. 2023

Chemistry An Asian Journal

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A class of rhodamine‐based fluorescent sensors for the selective and sensitive detection of Pd2+ metal ions in aqueous media has been developed. A rhodamine‐based sensor PMS and a rhodamine‐BODIPY Förster resonance energy transfer (FRET)‐pair sensor PRS have been incorporated with a piperazine linker and an O−N−S−N podand ligand for specific recognition of Pd2+ ion. Both probes displayed colorimetric and fluorescent ratiometric changes when exposed to Pd2+, due to their spirolactam rings opening and restoring rhodamine conjugation. PRS is highly selective to Pd2+ over 22 other metal ions, showing a 0.6‐fold ratiometric difference at I600nm/I515nm. Additionally, the lactam ring in Pd2+ coordinated PRS‐Pd could be switched back to the closed form in the presence of various thiols, providing a “red‐green traffic light” detection mechanism between red and green emission. Furthermore, PRS showed excellent cell viability and was successfully employed to image Pd2+ and the PRS‐Pd complex ensemble could interchangeably detect biothiols including glutathione (GSH) in A549 human lung cancer cells.

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Section: Introductionmentioning

confidence: 99%

A Piperazine Linked Rhodamine‐BODIPY FRET‐based Fluorescent Sensor for Highly Selective Pd²⁺ and Biothiol Detection

Tang

Chen

Tritton

et al. 2023

Chemistry An Asian Journal

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“…8 The human consumption of Pd 2+ from the environment ranges from 1.5 to 15 μg per person, but it reaches up to 4700 μg/kg in the sewage water released from the jewelry industry. 9 Therefore, a small amount of Pd 2+ detection is a considerable concern for the health of humans. It is now essential to detect Pd 2+ ions at significantly lower concentrations in an aqueous medium by designing a targeted sensor.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The World Health Organization (WHO) restricted the concentration of Pd 2+ to 5–10 ppm in pharmaceutical products and a maximum of only 2 μg daily dietary intake by a person as tolerable . The human consumption of Pd 2+ from the environment ranges from 1.5 to 15 μg per person, but it reaches up to 4700 μg/kg in the sewage water released from the jewelry industry . Therefore, a small amount of Pd 2+ detection is a considerable concern for the health of humans.…”

Section: Introductionmentioning

confidence: 99%

Metal–Organic-Framework-Based Chemosensor for Ultrafast and Ultrasensitive Detection of Pd²⁺ Ions in Water, Real Specimens, and Test Strips

et al. 2022

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A new ultrasensitive and ultrafast Al(III) metal−organicframework (MOF)-based probe (1) was constructed to detect Pd 2+ ions. Extremely selective recognition of Pd 2+ ion was demonstrated by the guest-free compound 1 (called 1′) using a fluorescence signal. The quenching in the fluorescence signal was observed due to the weak interaction between the linker alkyne−π bond and Pd 2+ . The mechanism of isophthalic alkyne−π and Pd 2+ interaction was systematically examined with the help of isothermal titration calorimetry (ITC), Xray photoelectron spectroscopy (XPS), and UV−vis spectroscopy. The response time of the MOF for sensing of Pd 2+ was 30 s, which is the lowest response time for MOF-based Pd 2+ sensing to date, with an ultralow detection limit (102 nM) and Stern−Volmer constant (4.39 × 10 3 M −1 ), evidencing the outstanding ability to sense Pd 2+ ion by this probe. The Pd 2+ detection limit falls among the lowest values. Activated MOF (1′) also showed considerable recyclability up to five steps with a constant sensing ability. In different water resources (Milli-Q water, lake water, river water, and tap water), the probe also showed excellent sensing ability. A paper-strip device was developed for the applicability of our material for the real field sensing application of Pd 2+ . The relevance of 1′ is not only up to Pd 2+ , but it could also sense palladium in other possible oxidation states.

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“…[27][28][29] In recent years, fluorescent sensors are widely used for the detection of Pd 2+ because of their high selectivity, high sensitivity, cost effectiveness and real time detection. [30][31][32][33] So far, different strategies are adopted to develop fluorescent sensors for effective detection of Pd 2+ . Palladium-catalyzed chemical transformation is one of the popular strategies used to develop fluorescent sensors for the selective detection of Pd 2+ .…”

Section: Introductionmentioning

confidence: 99%

A new chromone-based fluorescent probe for ratiometric detection of Pd²⁺

et al. 2022

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Highly selective detection of Pd2+ ion in aqueous solutions with rhodamine-based colorimetric and fluorescent chemosensors

Cited by 26 publications

References 46 publications

A Piperazine Linked Rhodamine‐BODIPY FRET‐based Fluorescent Sensor for Highly Selective Pd²⁺ and Biothiol Detection

A Piperazine Linked Rhodamine‐BODIPY FRET‐based Fluorescent Sensor for Highly Selective Pd²⁺ and Biothiol Detection

Metal–Organic-Framework-Based Chemosensor for Ultrafast and Ultrasensitive Detection of Pd²⁺ Ions in Water, Real Specimens, and Test Strips

A new chromone-based fluorescent probe for ratiometric detection of Pd²⁺

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Highly selective detection of Pd2+ ion in aqueous solutions with rhodamine-based colorimetric and fluorescent chemosensors

Cited by 26 publications

References 46 publications

A Piperazine Linked Rhodamine‐BODIPY FRET‐based Fluorescent Sensor for Highly Selective Pd2+ and Biothiol Detection

A Piperazine Linked Rhodamine‐BODIPY FRET‐based Fluorescent Sensor for Highly Selective Pd2+ and Biothiol Detection

Metal–Organic-Framework-Based Chemosensor for Ultrafast and Ultrasensitive Detection of Pd2+ Ions in Water, Real Specimens, and Test Strips

A new chromone-based fluorescent probe for ratiometric detection of Pd2+

Contact Info

Product

Resources

About

A Piperazine Linked Rhodamine‐BODIPY FRET‐based Fluorescent Sensor for Highly Selective Pd²⁺ and Biothiol Detection

A Piperazine Linked Rhodamine‐BODIPY FRET‐based Fluorescent Sensor for Highly Selective Pd²⁺ and Biothiol Detection

Metal–Organic-Framework-Based Chemosensor for Ultrafast and Ultrasensitive Detection of Pd²⁺ Ions in Water, Real Specimens, and Test Strips

A new chromone-based fluorescent probe for ratiometric detection of Pd²⁺