Journal ArticleDOI
Mono(di)nuclear Europium(III) Complexes of Macrobi(tri)cyclic Cryptands Derived from Diazatetralactams as Luminophores in Aqueous Solution
Chantal Galaup,Claude Picard,Bernard Cathala,Louis Cazaux,Pierre Tisnès,Hervé Autiero,Daniel Aspe +6 more
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TLDR
In this article, macrobicyclic and macrotricyclic ligands were synthesized to increase the excellent light-emitting properties of the Eu3+ ion, incorporating a 18-membered tetralactam ring and a sensitizer group.Abstract:
To increase the excellent light-emitting properties of the Eu3+ ion, macrobicyclic and macrotricyclic ligands 7 – 10, incorporating a 18-membered tetralactam ring (acting as a lanthanide binding site) and a sensitizer group (2,2′-bipyridine or 2,2′-bipyridine 1,1′-dioxide moiety), were synthesized. The mononuclear and dinuclear europium cryptates derived from these ligands were isolated and characterized. Their luminescent properties and those of the corresponding cryptates containing a phenanthroline group (see 11 and 12) were examined in H2O and D2O solutions at 77 and 300 K. It results that the tetralactam moiety plays a major role in the efficient shielding of the complexed Eu3+ ion from the water environment. The cryptands incorporating the bipyridine unit are the most promising labels according to their photophysical properties (excitation maxima, emission decay lifetime, relative luminescent yield). In contrast with literature data, introduction of N-oxide groups in the bipyridine chromophore weakens the luminescence properties of the cryptate.read more
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Journal ArticleDOI
Synthesis and Luminescence Properties of Novel Eu-Containing Copolymers Consisting of Eu(III)−Acrylate−β-Diketonate Complex Monomers and Methyl Methacrylate
TL;DR: In this article, Eu-containing copolymers were synthesized through copolymerization of Eu−complex monomers containing β-diketones with methyl methacrylate and characterized by FT-IR, UV−vis, XPS, GPC, TGA, and DSC.
Patent
Sample analysis systems
Amer El-Hage,Christopher G. Cesar,Douglas N. Modlin,Glenn R. Edwards,John C. Owicki,Joh Meadows,Michael T. Taylor,Samuel A. Marquiss,Jonathan Petersen,David P. Stumbo +9 more
TL;DR: In this article, the authors present a system for generating, transmitting, detecting, and analyzing light, including without limitation high-throughput optical screening devices for analyzing samples at one or more assay sites.
Patent
Methods and apparatus for detecting nucleic acid polymorphisms
Todd E. French,Douglas N. Modlin,John C. Owicki,James S. Richey,Lev J. Leytes,Enal S. Razvi,Yan Zhang-Klompus,Peter R. Panfili +7 more
TL;DR: In this paper, the authors proposed a method for detecting polynucleotide hybridization in luminescence-based assays, which may include (1) allele-specific hybridization, using luminecence detection, (2) allele specific oligonucleotide ligation, using dye-labeled oligon nucleotide ligations with luminemagnetic resonance energy transfer (FRET) detection, and (3) allelespecific nucleotide incorporation, using primer extension with luminine polarization (FP) detection.
Journal ArticleDOI
Synthesis, Crystal Structure, and Photophysical and Magnetic Properties of Dimeric and Polymeric Lanthanide Complexes with Benzoic Acid and Its Derivatives
TL;DR: In this article, a new family of lanthanide carboxylate complexes with benzoic acid and its derivatives was synthesized and characterised by X-ray crystallography.
Journal ArticleDOI
Supramolecularly Organized Lanthanide Complexes for Efficient Metal Excitation and Luminescence as Sensors in Organic and Biological Applications
TL;DR: In this article, the authors reviewed the literature on various chemical systems, based on nitrogen heteroaromatic rings, used to sensitize lanthanides, including those molecules synthesized by the authors which displayed high quantum yield of lanthanide emission.