Unique Three-Component Supramolecular Assembly for Highly Specific Detection of Zinc Ions DOI Creative Commons
Xiang Geng, Lixin Zhang,

Duan Xiong

и другие.

Sensors, Год журнала: 2025, Номер 25(11), С. 3470 - 3470

Опубликована: Май 30, 2025

The detection of zinc ions plays an essential role in protecting public health and maintaining ecological balance. However, traditional fluorescent probes for Zn2+ are limited their specificity, especially under complex environments, due to single-mode optical signal inadequate recognization capacities. Herein we report a dual-mode supramolecular sensing system constructed from unique three-component assembly involving terpyridine platinum (II) complex, oxalate, Zn2+, enabling highly specific performance Zn2+. exhibits excellent selectivity among various interfering substances, accompanied by ultra-low limit (0.199 μM) fast response (<3 s). high capacity comes tri-component-based assembly, while the arises generation intermelcular Pt-Pt π-π interactions, which yields absorption emission originating low-energy metal–metal-to-ligand charge transfer (MMLCT) transitions. This work marks pioneering demonstration inspires alternative strategy designing cation probes.

Язык: Английский

Synergistic Adsorption and Fluorescence in Porous Aromatic Frameworks for Highly Sensitive Detection of Radioactive Uranium DOI Creative Commons

Suming Zhang,

Siyu Wu, Cheng Zhang

и другие.

Molecules, Год журнала: 2025, Номер 30(9), С. 1920 - 1920

Опубликована: Апрель 25, 2025

Uranium plays an important role in the modern nuclear industry. However, such a radioactive element can also cause severe damage to environment once leaked or discharged into water air, having huge impact on safety of biosphere. In this work, we pioneered use fluorescent monomers as imprinted units, which promoted fluorescence emission material. A novel porous aromatic framework was obtained with uranyl ion chelating sites, namely MIPAF-15. The unique N-O pockets 4-bromo-1-H-indole-7-carboxylic acid gave rise high coordination affinity toward ions, enabled fast adsorption rate ions and capacity 44.88 mg·g−1 at 298 K initial pH value 6.0 concentration 10 ppm. At same time, quenching effect MIPAF-15 observed upon its allowed selective detection limit 5.04 × 10−8 M, lower than maximum drinking specified by World Health Organization (6.30 M) United States Environmental Protection Agency (1.11 10−7 M). This kind multifunctional material produces favorable pathway for detection, removal degeneration highly pollutive promoting overall sustainable development natural environment.

Язык: Английский

Процитировано

0
Unique Three-Component Supramolecular Assembly for Highly Specific Detection of Zinc Ions DOI Creative Commons
Xiang Geng, Lixin Zhang,

Duan Xiong

и другие.

Sensors, Год журнала: 2025, Номер 25(11), С. 3470 - 3470

Опубликована: Май 30, 2025

The detection of zinc ions plays an essential role in protecting public health and maintaining ecological balance. However, traditional fluorescent probes for Zn2+ are limited their specificity, especially under complex environments, due to single-mode optical signal inadequate recognization capacities. Herein we report a dual-mode supramolecular sensing system constructed from unique three-component assembly involving terpyridine platinum (II) complex, oxalate, Zn2+, enabling highly specific performance Zn2+. exhibits excellent selectivity among various interfering substances, accompanied by ultra-low limit (0.199 μM) fast response (<3 s). high capacity comes tri-component-based assembly, while the arises generation intermelcular Pt-Pt π-π interactions, which yields absorption emission originating low-energy metal–metal-to-ligand charge transfer (MMLCT) transitions. This work marks pioneering demonstration inspires alternative strategy designing cation probes.

Язык: Английский

Процитировано

0