Recherche

Afficher tous les résultats pour

Accueil

Personne

Anne-Sophie Chauvin

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (46)

Page 1 sur 3

6-Phosphoryl Picolinic Acids as Europium and Terbium Sensitizers

Anne-Sophie Chauvin, Julien Alexandre Andres

Three 6-phosphoryl picolinic acid (6PPA) derivatives were synthesized and used as europium and terbium sensitizers. Two of the three ligands (6-diethoxyphosphoryl picolinic acid (Hdeppa) and 6-monoethoxyphosphoryl picofinic acid (H(2)meppa)) are water-solu ...

2011

New Opportunities for Lanthanide Luminescence

Jean-Claude Bünzli, Caroline Vandevyver, Anne-Sophie Chauvin, Steve Comby

Trivalent lanthanide ions display fascinating optical properties. The discovery of the corresponding elements and their fist industrial uses were intimately linked to their optical properties. This relationship has been kept alive until today when many hig ...

2007

A versatile method for quantification of DNA and PCR products based on time-resolved EuIII luminescence

Jean-Claude Bünzli, Caroline Vandevyver, Anne-Sophie Chauvin, Bo Song

A versatile and robust method for the determination of DNA and PCR products (

2008

Bioconjugated lanthanide luminescent helicates as multilabels for lab-on-a-chip detection of cancer biomarkers

Martinus Adela Maria Gijs, Jean-Claude Bünzli, Caroline Vandevyver, Anne-Sophie Chauvin, Venkataragavalu Sivagnanam, Bo Song, Hans-Anton Lehr

The lanthanide binuclear helicate [Eu2(LC2(CO2H))3] is coupled to avidin to yield a luminescent bioconjugate EuB1 (Q ¼ 9.3%, s(5D0) ¼ 2.17 ms). MALDI/TOF mass spectrometry confirms the covalent binding of the Eu chelate and UV-visible spectroscopy allows o ...

2010

Luminescent Bimetallic Lanthanide Bioprobes for Cellular Imaging with Excitation in the Visible-Light Range

Jean-Claude Bünzli, Caroline Vandevyver, Anne-Sophie Chauvin, Frédéric Gumy, Bo Song

A series of homoditopic ligands H2LCX (X=4–6) has been designed to self-assemble with lanthanide ions (LnIII), resulting in neutral bimetallic helicates of overall composition [Ln2ACHTUNGTRENUNG(LCX)3] with the aim of testing the influence of substituents ...

2009

Energy transfer in coumarin-sensitised lanthanide luminescence: investigation of the nature of the sensitiser and its distance to the lanthanide ion

Anne-Sophie Chauvin, Julien Alexandre Andres

A series of lanthanide complexes Ln(dpxCy)(3) have been synthesised. The ligands are composed of a coordinating dipicolinic acid backbone decorated with a polyoxyethylene arm fitted with a coumarin moiety at its extremity. The nature of the coumarin ...

Royal Society of Chemistry2013

Europium Complexes of Tris(dipicolinato) Derivatives Coupled to Methylumbelliferone: A Double Sensitization

Anne-Sophie Chauvin, Julien Alexandre Andres

A para-poly(oxyethylene) dipicolinic acid derivative coupled to methylumbelliferone was synthesized and used as a ligand for coordination with europium ions. Characterization of the complex by mass spectrometry and spectrophotometry was performed in aqueou ...

Wiley-Blackwell2010

Synthesis and characterization of partially substituted at lower rim phosphorus containing calix(4)arenes

Rosario Scopelliti, Anne-Sophie Chauvin

The synthesis and characterization of several new phosphorus-containing partially lower rim substituted derivatives of 5,11,17,23-tetra(t-butyl) calix(4)arene (1) and 5,11,17,23-tetra(t-octyl)calix(4)arene (II), namely 5,11,17,23-tetra(t-butyl)-25,27-dihyd ...

Taylor & Francis2007

Use of Dipicolinate-Based Complexes for Producing Ion-Imprinted Polystyrene Resins for the Extraction of Yttrium-90 and Heavy Lanthanide Cations

Rosario Scopelliti, Jean-Claude Bünzli, Anne-Sophie Chauvin, François Bochud

Highly selective separation of yttrium (and lanthanides) is of interest for the design of radiopharmaceuticals, and an efficient method based on the ion-imprinting concept is proposed here. The synthesis and structural, thermodynamic and photophysical char ...

2006

Peptide‐Carbazolyl Cyanobenzene Conjugates: Enabling Biomolecule Functionalization via Photoredox and Energy Transfer Catalysis

Jérôme Waser, Beat Fierz, Anne-Sophie Chauvin, Xingyu Liu, Wei Cai

Since their discovery in 2012, carbazolyl (iso)phthalonitrile derivatives (Cz(I)PN) have found significant applications as photocatalysts in organic chemistry. Herein, we introduce two efficient methods for incorporating carbazolyl cyanobenzenes into vario ...

Wiley2025

Vascular-targeted micelles as a specific MRI contrast agent for molecular imaging of fibrin clots and cancer cells

Anne-Sophie Chauvin

Molecular medical imaging is intended to increase the accuracy of diagnosis, particularly in cardiovascular and cancer-related diseases, where early detection could significantly increase the treatment success rate. In this study, we present mixed micelles ...

ELSEVIER2021

Non-Cytotoxic, Bifunctional EuIII and TbIII Luminescent Macrocyclic Complexes for Luminescence Resonant Energy- Transfer Experiments

Jean-Claude Bünzli, Caroline Vandevyver, Anne-Sophie Chauvin

A new macrocyclic ligand,

L^3

, has been synthesised, based on the cyclen framework grafted with three phenacyl light-harvesting groups and a C5-alkyl chain bearing a carboxylic acid function as a potential linker for biological material. Acidity constant ...

2007

Stable 8-hydroxyquinolinate-based podates as efficient sensitizers of lanthanide near-infrared luminescence

Jean-Claude Bünzli, Anne-Sophie Chauvin, Steve Comby

New polydentate ligands (e.g., Tsox and TsoxMe) have been synthesized to take advantage of the chelating effect of bidentate 8-hydroxyquinolinate subunits connected to a N,N,N¢,N¢-tetraaminopropyl-1,2-ethylenediamine framework and with the aim of sensitizi ...

2006

Accessing Carbon, Boron and Germanium Spiro Stereocentres in a Unified Catalytic Enantioselective Approach

Nicolai Cramer, Anne-Sophie Chauvin, Yixuan Cao

Achieving substrate generality in asymmetric catalysis remains a long-standing goal, particularly for the selective construction of chiral heteroatoms. Compared with carbon, sulfur, phosphorus and silicon stereogenic centres, methods for the construction o ...

NATURE PORTFOLIO2025

Sensitized near-IR luminescence of lanthanide complexes based on push-pull diketone derivatives

Jean-Claude Bünzli, Anne-Sophie Chauvin, Frédéric Gumy, Annina Aebischer

Lanthanide complexes with two push-pull diketone derivatives as sensitizers have been developed as synthons for near-infrared emitting materials. The ligand substituents consist of a carbazole moiety with hole-transport properties and an aromatic or hetero ...

2010

Lanthanide Bimetallic Helicates for in Vitro Imaging and Sensing

Jean-Claude Bünzli, Caroline Vandevyver, Anne-Sophie Chauvin, Steve Comby, Bo Song

As the need for targeting luminescent biolabels increases, for mapping selected analytes, imaging of cells and organs, and tracking in cellulo processes, lanthanide bimetallic helicates are emerging as versatile bioprobes. The wrapping of three ligand stra ...

2008

A Versatile Ditopic Ligand System for Sensitizing the Luminescence of Bimetallic Lanthanide Bio-Imaging Probes

Jean-Claude Bünzli, Caroline Vandevyver, Anne-Sophie Chauvin, Steve Comby, Bo Song

The homoditopic ligand 6,6’- [methylenebis(1-methyl-1H-benzimid- azole-5,2-diyl)]bis(4-{2-[2-(2-methoxy- ethoxy)ethoxy]ethoxy}pyridine-2-carboxylic acid) (H2LC2) has been tailored to self-assemble with lanthanide ions (LnIII), which results in the formatio ...

2008

Effect of the length of polyoxyethylene substituents on luminescent bimetallic lanthanide bioprobes

Jean-Claude Bünzli, Caroline Vandevyver, Anne-Sophie Chauvin, Bo Song

The new homoditopic ligand

H_2L^{C2'}

self-assembles with lanthanide ions (

Ln^{III}

) to yield neutral bimetallic helicates of overall composition

[Ln_2(L^{C2'})_3]

; it is fitted with two hexakis(oxyethylene) chains to test their effects on the thermo ...

2008

Colorimetry of Luminescent Lanthanide Complexes

Anne-Sophie Chauvin, Julien Alexandre Andres

Europium, terbium, dysprosium, and samarium are the main trivalent lanthanide ions emitting in the visible spectrum. In this work, the potential of these ions for colorimetric applications and colour reproduction was studied. The conversion of spectral dat ...

2020

A New Anti-Counterfeiting Feature Relying on Invisible Luminescent Full Color Images Printed with Lanthanide-Based Inks

Jacques-Edouard Moser, Roger Hersch, Anne-Sophie Chauvin, Julien Alexandre Andres

Europium and terbium trisdipicolinate complexes are inkjet printed onto paper with commercially available desktop inkjet printers. Together with a commercial blue luminescent ink, the red-emitting luminescent ink containing europium and the green-emitting ...

Wiley-Blackwell2014