Two new families of lanthanide antennas are described. 8-Methoxy-4,5-dihydrocyclopenta[de]quinolin-2(1H)-one phosphonates or carboxylates behave as selective antennas exhibiting Eu3+ luminescence in organic solvents, while quinolin-2(1H)-one analogues selectively sensitize the Tb3+ emission. These emissions are quenched by H2O addition. Based on this behaviour, the new lanthanide antennas can be used as highly sensitive water sensors.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d0cc01725f | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A sensitized dual-response ratiometric fluorescent sensor integrated smartphone platform for accurate discrimination and detection of tetracycline homologues based on N-CDs‒Eu complex.
Mikrochim Acta
January 2025
Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
A sensitized dual-response ratiometric fluorescent sensor integrated smartphone platform for accurate discrimination and detection of tetracycline (TC) homologues was fabricated based on N-CDs-Eu complex. In the sensing system, N-CDs act as a sensitizer of Eu and significantly enhance the fluorescence of TC-Eu complex approximate 40-fold owing to the synergistic effect of antenna effect (AE) and fluorescence resonance energy transfer (FRET). A paper sensor integrated with a smartphone platform is further fabricated for on-site measurement of TC.
View Article and Find Full Text PDFSuppression of Photoexcited Small Polarons-Mediated Energy Transfer to Boost Photoluminescence of Lanthanide-Titanium Nanoclusters.
Nano Lett
January 2025
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
Lanthanide (Ln)-titanium-based molecular nanoclusters (NCs) have attracted much attention due to their atomically precise total structure and promising optical behavior, while there is still minimal cognition of structure-dictated electron relaxation dynamics in such an NCs regime with unsatisfied photoluminescence quantum yield (PLQY, in general below 20%). Herein, the photoexcited small polarons (i.e.
View Article and Find Full Text PDFVisual detection of ciprofloxacin using a multi-emission ratiometric fluorescence sensor based on the molecularly imprinted polymers doped with terbium(III) ions.
Talanta
January 2025
School of Pharmacy, Binzhou Medical University, Yantai, 264003, China. Electronic address:
Ciprofloxacin (CIP) is a commonly used antibiotic, but its abuse may cause bacterial resistance, posing a high risk to the environment and human health. Herein, based on the molecular imprinting technology, this study proposed a ratiometric fluorescence sensor employing the "post-doping" strategy, which aims to be rapid, selective, and visually easy-to-use for CIP detection to address antibiotic residues and environmental risks. Specifically, by exploiting the "antenna effect" of lanthanide metal ions (Ln), terbium (III) (Tb) chosen as a fluorescence-assisted functional monomer as well as the red emitting CdTe quantum dots (QDs) as the internal reference signal were introduced into multi-emission Tb-CdTe@SiO@MIPs (TbMIPs).
View Article and Find Full Text PDFMetal Organic Framework Based on Photoactivated Aggregation-Induced Emission Molecule for Achieving Photoexcitation Regulation.
Chem Asian J
January 2025
School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China.
Article Synopsis
- Ln-MOFs are unique materials made from lanthanide ions and organic ligands, known for their porous nature and luminescent properties.
- The study focuses on the effects of photoexcitation and molecular aggregation of the ligand TPTB and its interaction with Tb3+ ions, revealing key insights into how these factors influence the structure and luminescence of the MOF.
- Findings indicate that UV light treatment prior to crystallization can enhance the luminescence and modify the characteristics of the resulting crystals, suggesting potential uses in areas like anti-counterfeiting and sensing technologies.
A luminescent lanthanide functionalized hydrogen-bonded organic framework hydrogel: Fluorescence sensing platform for copper and iron ions detection.
Talanta
December 2024
State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science & Engineering, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, 1239 Siping Road, Shanghai, 200092, China. Electronic address:
The excessive presence of the metal ions Cu and Fe in the environment poses a serious threat to ecosystems and human health, so timely and accurate detection of them has become essential and urgent. In this paper, a novel hydrogel-based fluorescent sensor, named ME-IPA@SA-TbZn, was fabricated facilely through an in-situ cross-linking modification method and was used for the detection of Cu and Fe in water bodies. The ME-IPA@SA-TbZn is essentially a hybrid hydrogel bead that exhibits vibrant fluorescence, employing Tb and Zn functionalized hydrogen-bonded organic frameworks (HOFs) as the fluorescence functional core and sodium alginate (SA) as the hydrogel matrix.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!