scholarly journals π‐Expanded Thioxanthones—Engineering the Triplet Level of Thioxanthone Sensitizers for Lanthanide‐Based Luminescent Probes with Visible Excitation

ChemPlusChem ◽  
2019 ◽  
Vol 84 (12) ◽  
pp. 1777-1777
Author(s):  
Charlotte Nybro Dansholm ◽  
Anne Kathrine R. Junker ◽  
Lea G. Nielsen ◽  
Nicolaj Kofod ◽  
Robert Pal ◽  
...  
Keyword(s):  
Triplet Level ◽  
Luminescent Probes

scholarly journals π‐Expanded Thioxanthones – Engineering the Triplet Level of Thioxanthone Sensitizers for Lanthanide‐Based Luminescent Probes with Visible Excitation

ChemPlusChem ◽  
2019 ◽  
Vol 84 (12) ◽  
pp. 1778-1788 ◽  
Author(s):  
Charlotte Nybro Dansholm ◽  
Anne Kathrine R. Junker ◽  
Lea G. Nielsen ◽  
Nicolaj Kofod ◽  
Robert Pal ◽  
...  
Keyword(s):  
Triplet Level ◽  
Luminescent Probes

scholarly journals Front Cover: π‐Expanded Thioxanthones – Engineering the Triplet Level of Thioxanthone Sensitizers for Lanthanide‐Based Luminescent Probes with Visible Excitation (ChemPlusChem 12/2019)

ChemPlusChem ◽  
2019 ◽  
Vol 84 (12) ◽  
pp. 1775-1775
Author(s):  
Charlotte Nybro Dansholm ◽  
Anne Kathrine R. Junker ◽  
Lea G. Nielsen ◽  
Nicolaj Kofod ◽  
Robert Pal ◽  
...  
Keyword(s):  
Triplet Level ◽  
Front Cover ◽  
Luminescent Probes

KLa(0.95−x)GdxF4:Eu3+ hexagonal phase nanoparticles as luminescent probes for in vitro Huh-7 cancer cell imaging

2021 ◽  
Vol 50 (15) ◽  
pp. 5197-5207
Author(s):  
Mohini Gupta ◽  
Rajamani Nagarajan ◽  
Chitteti Ramamurthy ◽  
Perumal Vivekanandan ◽  
G. Vijaya Prakash
Keyword(s):  
Liver Cancer ◽  
Cancer Cell ◽  
Cell Imaging ◽  
Hexagonal Phase ◽  
Liver Cancer Cell ◽  
Luminescent Probes ◽  
Cancer Cell Imaging ◽  
Site Selective

Strong and site selective red-emitting photoluminescent/MRI multi-functional KLa(0.95−x)GdxF4:Eu3+ (x = 0–0.4) bio-compatible nanomaterials for targeted in-vitro liver cancer cell imaging.

scholarly journals Mechanistic Insight of Sensing Hydrogen Phosphate in Aqueous Medium by Using Lanthanide(III)-Based Luminescent Probes

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 53
Author(s):  
Jashobanta Sahoo ◽  
Santlal Jaiswar ◽  
Pabitra B. Chatterjee ◽  
Palani S. Subramanian ◽  
Himanshu Sekhar Jena
Keyword(s):  
Drug Discovery ◽  
Aqueous Medium ◽  
Hydrogen Phosphate ◽  
Heterocyclic Ligand ◽  
Luminescent Probes ◽  
Mechanistic Insight ◽  
Sensitivity And Selectivity ◽  
Spectrophotometric Titrations ◽  
Ethanesulfonic Acid ◽  
High Degree

The development of synthetic lanthanide luminescent probes for selective sensing or binding anions in aqueous medium requires an understanding of how these anions interact with synthetic lanthanide probes. Synthetic lanthanide probes designed to differentiate anions in aqueous medium could underpin exciting new sensing tools for biomedical research and drug discovery. In this direction, we present three mononuclear lanthanide-based complexes, EuLCl3 (1), SmLCl3 (2), and TbLCl3 (3), incorporating a hexadentate aminomethylpiperidine-based nitrogen-rich heterocyclic ligand L for sensing anion and establishing mechanistic insight on their binding activities in aqueous medium. All these complexes are meticulously studied for their preferential selectivities towards different anions such as HPO42−, SO42−, CH3COO−, I−, Br−, Cl−, F−, NO3−, CO32−/HCO3−, and HSO4− at pH 7.4 in aqueous HEPES (2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid) buffer. Among the anions scanned, HPO42− showed an excellent luminescence change with all three complexes. Job’s plot and ESI-MS support the 1:2 association between the receptors and HPO42−. Systematic spectrophotometric titrations of 1–3 against HPO42− demonstrates that the emission intensities of 1 and 2 were enhanced slightly upon the addition of HPO42− in the range 0.01–1 equiv and 0.01–2 equiv., respectively. Among the three complexes, complex 3 showed a steady quenching of luminescence throughout the titration of hydrogen phosphate. The lower and higher detection limits of HPO42− by complexes 1 and 2 were determined as 0.1–4 mM and 0.4–3.2 mM, respectively, while complex 3 covered 0.2–100 μM. This concludes that all complexes demonstrated a high degree of sensitivity and selectivity towards HPO42−.

scholarly journals The design of responsive luminescent lanthanide probes and sensors

2021 ◽  
Author(s):  
David Parker ◽  
Jack D. Fradgley ◽  
Ka-Leung Wong
Keyword(s):  
Design Principles ◽  
Luminescent Probes ◽  
The Creation

The design principles that guide the creation of responsive lanthanide luminescent probes are defined, classified and exemplified.

Drug screening strategies using metal-based luminescent probes

2021 ◽  
pp. 116270
Author(s):  
Guodong Li ◽  
Chun Wu ◽  
Dik-Lung Ma ◽  
Chung-Hang Leung
Keyword(s):  
Drug Screening ◽  
Luminescent Probes ◽  
Screening Strategies

scholarly journals Uniform Spheres of α-NaYF4:RE3+ (RE=Eu, Tb, Ce, Er, and Tm): Template-Free Synthesis, Multi-Color Photoluminescence, and Their Application in Cellular Imaging

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 119
Author(s):  
Xiaofeng Fan ◽  
Laiqin Gu ◽  
Yiling Hu ◽  
Qi Zhu
Keyword(s):  
Near Infrared ◽  
Infrared Emission ◽  
Particle Sizes ◽  
Hydrothermal Processing ◽  
High Brightness ◽  
Luminescent Probes ◽  
Bio Imaging ◽  
Template Free ◽  
Near Infrared Emission

Uniformly dispersed luminescent probes with a high brightness and high resolution are desired in bio imaging fields. Here, ~100 nm sized and well-dispersed spheres of RE3+ doped α-NaYF4 (rare earth (RE) = Eu, Tb, Ce, Er, and Tm) have been facile synthesized through hydrothermal processing in the absence of a template, followed by a proper annealing. The processing window of the cubic structured spheres is wide, because the hydrothermal products are independent of the processing conditions, including reaction time and temperature. The original morphology and crystal structure can be well retained with a calcination temperature up to 600 °C. However, calcination gives rise to a reduction of particle sizes, as a result of the crystallite growth and densification. Under ultraviolet radiation, α-NaYF4:RE3+ spheres show characteristic f-f emissions of RE3+ (RE = Eu, Tb, Ce, Er, and Tm), and exhibit orange red, green, ultraviolet (UV), blue green, and blue emissions, respectively. Mainly because of the near-infrared emission at ~697 nm (5D0→7F4 transitions of Eu3+), the successful imaging of macrophages was achieved by NH2-NaYF4:Eu3+ probes, indicating their excellent imaging capacity for cells in vitro.

Luminescent cyclometallated platinum(ii) complexes: highly promising EGFR/DNA probes and dual-targeting anticancer agents

2018 ◽  
Vol 5 (2) ◽  
pp. 413-424 ◽  
Author(s):  
Yang Zhang ◽  
Qun Luo ◽  
Wei Zheng ◽  
Zhaoying Wang ◽  
Yu Lin ◽  
...  
Keyword(s):  
Anticancer Agents ◽  
Platinum Complexes ◽  
Living Cells ◽  
Dna Probes ◽  
High Potential ◽  
Luminescent Probes ◽  
Dual Targeting

Cyclometallated platinum complexes bearing 4-anilinoquinazolines exhibit high potential as luminescent probes for EGFR/DNA in living cells and dual-targeting anticancer agents.

Synthesis, structure of 3D lanthanide (La(III), Pr(III)) nanoporous coordination polymers containing 1D channels as selective luminescent probes of Pb2+, Ca2+ and Cd2+ ions

2011 ◽  
Vol 161 (21-22) ◽  
pp. 2230-2240 ◽  
Author(s):  
Li-rong Yang ◽  
Shuang Song ◽  
Huai-min Zhang ◽  
Wu Zhang ◽  
Zhan-wei Bu ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Luminescent Probes
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