1
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Jäschke A, Stumpf T, Aliabadi A, Büchner B, Kataev V, Hahn T, Kortus J, Kersting B. Tetranuclear Lanthanide Complexes Supported by Hydroxyquinoline‐Calix[4]arene‐Ligands: Synthesis, Structure, and Magnetic Properties of [Ln
4
(H
3
L)
2
(µ‐OH)
2
(NO
3
)
4
] (Ln = Tb, Dy, Yb) and [Dy
2
(H
4
L)
2
(NO
3
)](NO
3
). Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Astrid Jäschke
- Institut für Anorganische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Germany
- Institut für Ressourcenökologie Helmholtz‐Zentrum Dresden‐Rossendorf Bautzner Landstraße 400 01328 Dresden Germany
| | - Thorsten Stumpf
- Institut für Ressourcenökologie Helmholtz‐Zentrum Dresden‐Rossendorf Bautzner Landstraße 400 01328 Dresden Germany
| | - Azar Aliabadi
- Leibniz IFW Dresden Helmholtzstr. 20 01069 Dresden Germany
| | - Bernd Büchner
- Leibniz IFW Dresden Helmholtzstr. 20 01069 Dresden Germany
| | | | - Torsten Hahn
- Institut für Theoretische Physik TU Bergakademie Freiberg Leipziger Str. 23 09599 Freiberg/Sa Germany
| | - Jens Kortus
- Institut für Theoretische Physik TU Bergakademie Freiberg Leipziger Str. 23 09599 Freiberg/Sa Germany
| | - Berthold Kersting
- Institut für Anorganische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Germany
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2
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Perry HL, Yoon IC, Chabloz NG, Molisso S, Stasiuk GJ, Botnar RM, Wilton-Ely JDET. Metallostar Assemblies Based on Dithiocarbamates for Use as MRI Contrast Agents. Inorg Chem 2020; 59:10813-10823. [PMID: 32677827 DOI: 10.1021/acs.inorgchem.0c01318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Two different octadentate gadolinium chelates based on DO3A and DOTAGA chelates (hydration number q = 1) have been used to prepare a series of bi-, tri-, and tetrametallic d-f mixed-metal complexes. The piperazine-based dithiocarbamate linker ensures that rotation of the gadolinium chelates is restricted, leading to enhanced relaxivity (r1) values, which increase with the overall mass and number of gadolinium units. The r1 value (at 10 MHz, 25 °C) per gadolinium unit rises from 5.0 mM-1 s-1 for the Gd-DO3A-NH2 monogadolinium chelate to 9.2 mM-1 s-1 in a trigadolinium complex with a ruthenium(III) core. Using a 1.5 T clinical scanner operating at 63.87 MHz (25 °C), an 86% increase in the relaxivity per gadolinium unit is observed for this multimetallic compound compared to clinically approved Dotarem. The gadolinium complexes based on the DOTAGA chelate also performed well at 63.87 MHz, with a relaxivity value of 9.5 mM-1 s-1 per gadolinium unit being observed for the trigadolinium d-f mixed-metal complex with a ruthenium(III) core. The versatility of dithiocarbamate coordination chemistry thus provides access to a wide range of d-f hybrids with potential for use as high-performance MRI contrast agents.
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Affiliation(s)
- Hannah L Perry
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London W12 0BZ, U.K.,School of Biomedical Engineering and Imaging Sciences, King's College London, St. Thomas' Hospital, London SE1 7EH, U.K
| | - Il-Chul Yoon
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London W12 0BZ, U.K
| | - Nicolas G Chabloz
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London W12 0BZ, U.K
| | - Susannah Molisso
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London W12 0BZ, U.K
| | - Graeme J Stasiuk
- School of Biomedical Engineering and Imaging Sciences, King's College London, St. Thomas' Hospital, London SE1 7EH, U.K
| | - René M Botnar
- School of Biomedical Engineering and Imaging Sciences, King's College London, St. Thomas' Hospital, London SE1 7EH, U.K
| | - James D E T Wilton-Ely
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, White City Campus, London W12 0BZ, U.K
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3
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Harris M, Laskaratou D, Elst LV, Mizuno H, Parac-Vogt TN. Amphiphilic Nanoaggregates with Bimodal MRI and Optical Properties Exhibiting Magnetic Field Dependent Switching from Positive to Negative Contrast Enhancement. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5752-5761. [PMID: 30640430 DOI: 10.1021/acsami.8b18456] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mixed micelles based on amphiphilic gadolinium(III)-DOTA and europium(III)-DTPA complexes were synthesized and evaluated for their paramagnetic and optical properties as potential bimodal contrast agents. Amphiphilic folate molecule for targeting the folate receptor protein, which is commonly expressed on the surface of many human cancer cells, was used in the self-assembly process in order to create nanoaggregates with targeting properties. Both targeted and nontargeted nanoaggregates formed monodisperse micelles having distribution maxima of 10 nm. The micelles show characteristic europium(III) emission with quantum yields of 2% and 1.1% for the nontargeted and targeted micelles, respectively. Fluorescence microscopy using excitation at 405 nm and emission at 575-675 nm was employed to visualize the nanoaggregates in cultured HeLa cells. The uptake of folate-targeted and nontargeted micelles is already visible after 5 h of incubation and was characterized with the europium(III) emission, which is clearly observable in the cytoplasm of the cells. The very fast longitudinal relaxivity r1 of ca. 26 s-1 mM-1 per gadolinium(III) ion was observed for both micelles at 60 MHz and 310 K. Upon increasing the magnetic field to 300 MHz, the nanoaggregates exhibited a large switching to transversal relaxivity with r2 value of ca. 52 s-1 mM-1 at 310 K. Theoretical fitting of the 1H NMRD profiles indicate that the efficient T1 and T2 relaxations are sustained by the favorable magnetic and electron-configuration properties of the gadolinium(III) ion, rotational correlation time, and coordinated water molecule. These nanoaggregates could have versatile application as a positive contrast agent at the currently used magnetic imaging field strengths and a negative contrast agent in higher field applications, while at the same time offering the possibility for the loading of hydrophobic therapeutics or targeting molecules.
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Affiliation(s)
- Michael Harris
- Department of Chemistry , KU Leuven , 3001 Leuven , Belgium
| | - Danai Laskaratou
- Department of Chemistry, Biochemistry, Molecular and Structural Biology Section, Laboratory of Biomolecular Network Dynamics , KU Leuven , 3001 Leuven , Belgium
| | - Luce Vander Elst
- Department of General, Organic, and Biomedical Chemistry, NMR and Molecular Imaging Laboratory , University of Mons , 7000 Mons , Belgium
| | - Hideaki Mizuno
- Department of Chemistry, Biochemistry, Molecular and Structural Biology Section, Laboratory of Biomolecular Network Dynamics , KU Leuven , 3001 Leuven , Belgium
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4
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Sandmann N, Bachmann J, Hepp A, Doltsinis NL, Müller J. Copper(ii)-mediated base pairing involving the artificial nucleobase 3H-imidazo[4,5-f]quinolin-5-ol. Dalton Trans 2019; 48:10505-10515. [DOI: 10.1039/c9dt02043h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A highly stabilizing Cu(ii)-mediated base pair is introduced into DNA using a large artificial nucleobase.
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Affiliation(s)
- Nikolas Sandmann
- Institut für Anorganische und Analytische Chemie
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Jim Bachmann
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Nikos L. Doltsinis
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Jens Müller
- Institut für Anorganische und Analytische Chemie
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
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5
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Harris M, Kolanowski JL, O'Neill ES, Henoumont C, Laurent S, Parac-Vogt TN, New EJ. Drawing on biology to inspire molecular design: a redox-responsive MRI probe based on Gd(iii)-nicotinamide. Chem Commun (Camb) 2018; 54:12986-12989. [PMID: 30387480 DOI: 10.1039/c8cc07092j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel, reversible redox-active MRI probe, GdNR1, has been developed for the study of redox changes associated with diseased states. This system exhibits switching in relaxivity upon reduction and oxidation of the appended nicotinimidium. Relaxivity studies and cyclic voltammetry confirmed the impressive reversibility of this system, at a biologically-relevant reduction potential. A 2.5-fold increase in relaxivity was observed upon reduction of the complex, which corresponds to a change in the number of inner-sphere water molecules, as confirmed by luminescence lifetimes of the Eu(iii) analogue and NMRD studies. This is the first example of a redox-responsive MRI probe utilising the biologically-inspired nicotinimidium redox switch. In the future this strategy could enable the non-invasive identification of hypoxic tissue and related cardiovascular disease.
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Affiliation(s)
- Michael Harris
- Department of Chemistry, KU Leuven, Celestijnlaan 200F, Heverlee 3001, Belgium
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6
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Harris M, Henoumont C, Peeters W, Toyouchi S, Vander Elst L, Parac-Vogt TN. Amphiphilic complexes of Ho(iii), Dy(iii), Tb(iii) and Eu(iii) for optical and high field magnetic resonance imaging. Dalton Trans 2018; 47:10646-10653. [DOI: 10.1039/c8dt01227j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amphiphilic lanthanide(iii) complexes self-assemble into monodisperse micelles with favourable properties for optical and high field magnetic resonance imaging.
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Affiliation(s)
| | - Céline Henoumont
- General, Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
- Belgium
| | | | | | - Luce Vander Elst
- General, Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
- Belgium
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7
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de Oliveira IM, Vasconcelos SSN, Barbeiro CS, Correra TC, Shamim A, Pimenta DC, Caracelli I, Zukerman-Schpector J, Stefani HA, Manarin F. Ytterbium(iii)-catalyzed three-component reactions: synthesis of 4-organoselenium-quinolines. NEW J CHEM 2017. [DOI: 10.1039/c7nj01803g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
4-Organoselenium-quinolines were synthesized via model multi-component Povarov reactions between p-anisidine, ethyl glyoxylate and ethynyl(phenyl)selane.
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Affiliation(s)
| | | | - Cristiane S. Barbeiro
- Departamento de Farmácia
- Faculdade de Ciências Farmacêuticas
- Universidade de São Paulo
- São Paulo
- Brazil
| | | | - Anwar Shamim
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | | | - Ignez Caracelli
- Departmento de Física
- Universidade Federal de São Carlos
- São Carlos
- Brazil
| | | | - Hélio A. Stefani
- Departamento de Farmácia
- Faculdade de Ciências Farmacêuticas
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Flávia Manarin
- Centro de Engenharias e Ciências Exatas-CECE
- Universidade Estadual do Oeste do Paraná
- Toledo
- Brazil
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8
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Harris M, Vander Elst L, Laurent S, Parac-Vogt TN. Magnetofluorescent micelles incorporating Dy(III)-DOTA as potential bimodal agents for optical and high field magnetic resonance imaging. Dalton Trans 2016; 45:4791-801. [PMID: 26865457 DOI: 10.1039/c5dt04801j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Dysprosium(iii) was coordinated to four 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) bisamide derivatives functionalized with amphiphilic p-dodecylaniline and p-tetradecylaniline in a differing cis- and trans-orientation. The complexes were assembled into mono-disperse micelles having size distribution maxima ranging from 10 to 15 nm and the magnetic and optical properties of the micelles were examined in detail. The micelles show characteristic Dy(iii) emission with quantum yields reaching 0.8%. The transverse relaxivity r2 per Dy(iii) ion at 500 MHz and 310 K reaches maximum values of ca. 20 s(-1) mM(-1) which is a large increase when compared to a value of 0.8 s(-1) mM(-1) observed for Dy(III)-DTPA. The micelles were stable in water when incubated at 37 °C for 1 week and showed no relaxivity decrease when measured in the presence of 4% (w/v) human serum albumin. The efficient T2 relaxation, especially at strong magnetic fields, is sustained by the high magnetic moment of the dysprosium(iii) ion, the coordination of water molecules and long rotational correlation times.
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Affiliation(s)
- Michael Harris
- KU Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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9
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Gossuin Y, Serhan Z, Sandiford L, Henrard D, Marquardsen T, de Rosales RTM, Sakellariou D, Ferrage F. Sample Shuttling Relaxometry of Contrast Agents: NMRD Profiles above 1 T with a Single Device. APPLIED MAGNETIC RESONANCE 2016; 47:237-246. [PMID: 26941480 PMCID: PMC4761365 DOI: 10.1007/s00723-015-0751-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Indexed: 06/05/2023]
Abstract
Nuclear magnetic relaxation dispersion (NMRD) profiles are essential tools to evaluate the efficiency and investigate the properties of magnetic compounds used as contrast agents for magnetic resonance imaging (MRI), namely gadolinium chelates and superparamagnetic iron oxide particles. These curves represent the evolution of proton relaxation rates with the magnetic field. NMRD profiles are unparalleled to probe extensively the spectral density function involved in the relaxation of water in the presence of the paramagnetic ion or the magnetic nanoparticles. This makes such profiles an excellent test of the adequacy of a theoretical relaxation model and allow for a predictive approach to the development and optimization of contrast agents. From a practical point of view they also allow to evaluate the efficiency of a contrast agent in a certain range of magnetic fields. Nowadays, these curves are recorded with commercial fast field cycling devices, often limited to a maximum Larmor frequency of 40 MHz (0.94 T). In this article, relaxation data were acquired on a wide range of magnetic fields, from 3.5 × 10-4 to 14 T, for a gadolinium-based contrast agent and for PEGylated iron oxide nanoparticles. We show that the low-field NMRD curves can be completed with high-field data obtained on a shuttle apparatus device using the superconductive magnet of a high-field spectrometer. This allows a better characterization of the contrast agents at relevant magnetic fields for clinical and preclinical MRI, but also refines the experimental data that could be used for the validation of relaxation models.
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Affiliation(s)
- Yves Gossuin
- />Biomedical Physics Department, University of Mons, 24, Avenue du Champ de Mars, 7000 Mons, Belgium
| | - Zeinab Serhan
- />Département de Chimie, École Normale Supérieure - PSL Research University, 24 rue Lhomond, 75005 Paris, France
- />Sorbonne Universités UPMC Univ Paris 06, LBM, 4 place Jussieu, 75005 Paris, France
- />UMR 7203 LBM, CNRS, 75005 Paris, France
| | - Lydia Sandiford
- />Division of Imaging Sciences and Biomedical Engineering, St. Thomas’ Hospital, King’s College London, London, SE1 7EH UK
| | - Daniel Henrard
- />Biomedical Physics Department, University of Mons, 24, Avenue du Champ de Mars, 7000 Mons, Belgium
| | | | - Rafael T. M. de Rosales
- />Division of Imaging Sciences and Biomedical Engineering, St. Thomas’ Hospital, King’s College London, London, SE1 7EH UK
| | - Dimitrios Sakellariou
- />Laboratoire Structure et Dynamique par Résonance Magnétique, CEA Saclay, DSM, IRAMIS, UMR CEA/CNRS 3685, NIMBE, 91191 Gif-sur-Yvette Cedex, France
| | - Fabien Ferrage
- />Département de Chimie, École Normale Supérieure - PSL Research University, 24 rue Lhomond, 75005 Paris, France
- />Sorbonne Universités UPMC Univ Paris 06, LBM, 4 place Jussieu, 75005 Paris, France
- />UMR 7203 LBM, CNRS, 75005 Paris, France
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10
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Nithyakumar A, Alexander V. Tri- and tetranuclear RuII–GdIII2 and RuII–GdIII3 d–f heterometallic complexes as potential bimodal imaging probes for MRI and optical imaging. NEW J CHEM 2016. [DOI: 10.1039/c5nj03393d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Tri- and tetranuclear RuII–GdII2 and RuII–GdIII3 d–f heterometallic complexes, which function as contrast agents for MRI and as optical probes for fluorescence imaging, are reported. In vitro studies using the HeLa cell lines show that these complexes exhibit anticancer activity.
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Affiliation(s)
- A. Nithyakumar
- Department of Chemistry
- Loyola College
- Chennai 600034
- India
| | - V. Alexander
- Department of Chemistry
- Loyola College
- Chennai 600034
- India
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11
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Carron S, Li QY, Vander Elst L, Muller RN, Parac-Vogt TN, Capobianco JA. Assembly of near infra-red emitting upconverting nanoparticles and multiple Gd(III)-chelates as a potential bimodal contrast agent for MRI and optical imaging. Dalton Trans 2015; 44:11331-9. [PMID: 26011519 DOI: 10.1039/c5dt00919g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Linking multiple paramagnetic gadolinium(III)-chelates based on the 2-[4,7,10-tris(carboxymethyl)-1,4,7,10-tetraazacyclododec-1-yl]acetate (DOTA) ligand to the surface of NaGdF4:Yb(3+),Tm(3+) upconverting nanoparticles with an average particle size of 20 nm resulted in an assembly that has favorable properties for bimodal Magnetic Resonance Imaging (MRI) and Optical Imaging (OI). An improved synthetic pathway was used to couple the paramagnetic precursor to the nanoparticles. The nanoparticles were rendered water dispersible via citrate capping, leaving one acid group free for amide coupling with the mono-amino precursor of the DOTA ligand. Luminescence spectroscopy measurements have shown that the excitation of the nanoconstruct at 980 nm resulted in intense upconverted emission of thulium(III) at 800 nm. The assembly of several paramagnetic centers on the nanoparticle scaffold reduces the overall tumbling rate, resulting in enhanced longitudinal relaxation times and improved relaxivity. The proton NMRD profiles show a characteristic hump at higher frequencies, which is caused by the slow rotation of the nanoconstruct, resulting in r1 values of 25 mM(-1) s(-1) per gadolinium(III)-ion at 60 MHz and 310 K. This is a significant improvement compared to the Gd-DO3A-ethylamine precursor (4) for which a value of r1 of 3.23 mM(-1) s(-1) was observed under the same conditions. Theoretical fitting by two different approaches showed an increase of τR from 57.3 ps for the Gd-DO3A-ethylamine precursor (4) to 392.0 ps for the nanoconstruct, which is responsible for the overall substantial increase in relaxivity.
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Affiliation(s)
- Sophie Carron
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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12
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Ceulemans M, Debroye E, Vander Elst L, De Borggraeve W, Parac‐Vogt TN. Luminescence and Relaxometric Properties of Heteropolymetallic Metallostar Complexes with Selectively Incorporated Lanthanide(III) Ions. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Matthias Ceulemans
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, http://chem.kuleuven.be/lbc/
| | - Elke Debroye
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, http://chem.kuleuven.be/lbc/
| | - Luce Vander Elst
- Department of General, Organic and Biomedical Chemistry, University of Mons, Place du Parc 23, 7000 Mons, Belgium
| | - Wim De Borggraeve
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, http://chem.kuleuven.be/lbc/
| | - Tatjana N. Parac‐Vogt
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, http://chem.kuleuven.be/lbc/
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13
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Harris M, Carron S, Vander Elst L, Laurent S, Parac-Vogt TN. Magnetofluorescent Nanoaggregates Incorporating Terbium(III) Complexes as Potential Bimodal Agents for Magnetic Resonance and Optical Imaging. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500310] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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Boulay A, Deraeve C, Vander Elst L, Leygue N, Maury O, Laurent S, Muller RN, Mestre-Voegtlé B, Picard C. Terpyridine-Based Heteroditopic Ligand for RuIILn3III Metallostar Architectures (Ln = Gd, Eu, Nd, Yb) with MRI/Optical or Dual-Optical Responses. Inorg Chem 2015; 54:1414-25. [DOI: 10.1021/ic502342x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alexandre Boulay
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, UMR-5068, 118 Route de Narbonne, F-31062 Toulouse cedex 9, France
- Université de Toulouse, UPS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, 118 route de Narbonne, F-31062 Toulouse cedex 9, France
| | - Céline Deraeve
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, UMR-5068, 118 Route de Narbonne, F-31062 Toulouse cedex 9, France
- Université de Toulouse, UPS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, 118 route de Narbonne, F-31062 Toulouse cedex 9, France
| | - Luce Vander Elst
- NMR
and Molecular Imaging Laboratory, Department of General, Organic and
Biomedical Chemistry, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
- Center for Microscopy and Molecular Imaging (CMMI), Rue Adrienne Bolland, 8, B-6041 Gosselies, Belgium
| | - Nadine Leygue
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, UMR-5068, 118 Route de Narbonne, F-31062 Toulouse cedex 9, France
- Université de Toulouse, UPS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, 118 route de Narbonne, F-31062 Toulouse cedex 9, France
| | - Olivier Maury
- Université de Lyon 1, Laboratoire de Chimie de l’ENS Lyon, CNRS UMR 5182, 46 allée d’Italie, 69364 Lyon, France
| | - Sophie Laurent
- NMR
and Molecular Imaging Laboratory, Department of General, Organic and
Biomedical Chemistry, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
- Center for Microscopy and Molecular Imaging (CMMI), Rue Adrienne Bolland, 8, B-6041 Gosselies, Belgium
| | - Robert N. Muller
- NMR
and Molecular Imaging Laboratory, Department of General, Organic and
Biomedical Chemistry, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
- Center for Microscopy and Molecular Imaging (CMMI), Rue Adrienne Bolland, 8, B-6041 Gosselies, Belgium
| | - Béatrice Mestre-Voegtlé
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, UMR-5068, 118 Route de Narbonne, F-31062 Toulouse cedex 9, France
- Université de Toulouse, UPS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, 118 route de Narbonne, F-31062 Toulouse cedex 9, France
| | - Claude Picard
- CNRS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, UMR-5068, 118 Route de Narbonne, F-31062 Toulouse cedex 9, France
- Université de Toulouse, UPS, Laboratoire de Synthèse et Physico-Chimie de Molécules d’Intérêt Biologique, SPCMIB, 118 route de Narbonne, F-31062 Toulouse cedex 9, France
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15
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Verwilst P, Park S, Yoon B, Kim JS. Recent advances in Gd-chelate based bimodal optical/MRI contrast agents. Chem Soc Rev 2015; 44:1791-806. [DOI: 10.1039/c4cs00336e] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recent developments in the field of bimodal MRI/optical contrast agents, based on Gd3+-chelates are presented.
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Affiliation(s)
- Peter Verwilst
- Department of Chemistry
- Korea University
- Seoul 136-701
- Korea
| | - Soyeon Park
- Department of Chemistry
- Korea University
- Seoul 136-701
- Korea
| | - Byungkwon Yoon
- Department of Chemistry
- Korea University
- Seoul 136-701
- Korea
| | - Jong Seung Kim
- Department of Chemistry
- Korea University
- Seoul 136-701
- Korea
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16
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Bloemen M, Vandendriessche S, Goovaerts V, Brullot W, Vanbel M, Carron S, Geukens N, Parac-Vogt T, Verbiest T. Synthesis and Characterization of Holmium-Doped Iron Oxide Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2014; 7:1155-1164. [PMID: 28788506 PMCID: PMC5453075 DOI: 10.3390/ma7021155] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 01/28/2014] [Accepted: 01/31/2014] [Indexed: 01/26/2023]
Abstract
Rare earth atoms exhibit several interesting properties, for example, large magnetic moments and luminescence. Introducing these atoms into a different matrix can lead to a material that shows multiple interesting effects. Holmium atoms were incorporated into an iron oxide nanoparticle and the concentration of the dopant atom was changed in order to determine its influence on the host crystal. Its magnetic and magneto-optical properties were investigated by vibrating sample magnetometry and Faraday rotation measurements. The luminescent characteristics of the material, in solution and incorporated in a polymer thin film, were probed by fluorescence experiments.
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Affiliation(s)
- Maarten Bloemen
- KU Leuven, Department of Chemistry, B-3001 Heverlee, Belgium.
| | | | | | - Ward Brullot
- KU Leuven, Department of Chemistry, B-3001 Heverlee, Belgium.
| | - Maarten Vanbel
- KU Leuven, Department of Chemistry, B-3001 Heverlee, Belgium.
| | - Sophie Carron
- KU Leuven, Department of Chemistry, B-3001 Heverlee, Belgium.
| | - Nick Geukens
- PharmAbs, The KU Leuven Antibody Center, KU Leuven, O&N II, Herestraat 49, Box 824, 3000 Leuven, Belgium.
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17
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Sung S, Holmes H, Wainwright L, Toscani A, Stasiuk GJ, White AJP, Bell JD, Wilton-Ely JDET. Multimetallic Complexes and Functionalized Gold Nanoparticles Based on a Combination of d- and f-Elements. Inorg Chem 2014; 53:1989-2005. [DOI: 10.1021/ic401936w] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Simon Sung
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Holly Holmes
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Luke Wainwright
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Anita Toscani
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Graeme J. Stasiuk
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Jimmy D. Bell
- Metabolic and Molecular Imaging Group,
MRC Clinical Sciences Centre, Imperial College London, Hammersmith Hospital, London W12 0NN, United Kingdom
| | - James D. E. T. Wilton-Ely
- Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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18
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Debroye E, Ceulemans M, Vander Elst L, Laurent S, Muller RN, Parac-Vogt TN. Controlled Synthesis of a Novel Heteropolymetallic Complex with Selectively Incorporated Lanthanide(III) Ions. Inorg Chem 2014; 53:1257-9. [DOI: 10.1021/ic402643a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elke Debroye
- Department
of Chemistry, KULeuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Matthias Ceulemans
- Department
of Chemistry, KULeuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Luce Vander Elst
- Department of General, Organic and Biomedical Chemistry, University of Mons, Place du Parc 23, 7000 Mons, Belgium
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, University of Mons, Place du Parc 23, 7000 Mons, Belgium
| | - Robert N. Muller
- Department of General, Organic and Biomedical Chemistry, University of Mons, Place du Parc 23, 7000 Mons, Belgium
- Center for Microscopy and Molecular Imaging (CMMI), 6041 Gosselies, Belgium
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19
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François A, Auzanneau C, Le Morvan V, Galaup C, Godfrey HS, Marty L, Boulay A, Artigau M, Mestre-Voegtlé B, Leygue N, Picard C, Coulais Y, Robert J, Benoist E. A functionalized heterobimetallic99mTc/Re complex as a potential dual-modality imaging probe: synthesis, photophysical properties, cytotoxicity and cellular imaging investigations. Dalton Trans 2014; 43:439-50. [DOI: 10.1039/c3dt51968f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Butler SJ, Delbianco M, Evans NH, Frawley AT, Pal R, Parker D, Puckrin RS, Yufit DS. Utility of tris(4-bromopyridyl) europium complexes as versatile intermediates in the divergent synthesis of emissive chiral probes. Dalton Trans 2014; 43:5721-30. [DOI: 10.1039/c4dt00253a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The tribromopyridyl complex is a versatile late intermediate in the divergent synthesis of emissive triazole and aryl–alkynyl substituted complexes.
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Affiliation(s)
| | | | - Nicholas H. Evans
- Department of Chemistry
- Durham University
- Durham DH1 3LE, UK
- Department of Chemistry
- Lancaster University
| | | | - Robert Pal
- Department of Chemistry
- Durham University
- Durham DH1 3LE, UK
| | - David Parker
- Department of Chemistry
- Durham University
- Durham DH1 3LE, UK
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21
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Debroye E, Eliseeva SV, Laurent S, Vander Elst L, Muller RN, Parac-Vogt TN. Micellar self-assemblies of gadolinium(iii)/europium(iii) amphiphilic complexes as model contrast agents for bimodal imaging. Dalton Trans 2014; 43:3589-600. [DOI: 10.1039/c3dt52842a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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22
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Debroye E, Parac-Vogt TN. Towards polymetallic lanthanide complexes as dual contrast agents for magnetic resonance and optical imaging. Chem Soc Rev 2014; 43:8178-92. [DOI: 10.1039/c4cs00201f] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In the spotlight: polymetallic complexes permitting efficient sensitization of lanthanide luminescence and exhibiting favorable relaxometric properties.
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Affiliation(s)
- Elke Debroye
- Department of Chemistry
- KU Leuven
- 3001 Leuven, Belgium
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23
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Debroye E, Laurent S, Vander Elst L, Muller RN, Parac-Vogt TN. Dysprosium Complexes and Their Micelles as Potential Bimodal Agents for Magnetic Resonance and Optical Imaging. Chemistry 2013; 19:16019-28. [DOI: 10.1002/chem.201302418] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Indexed: 12/30/2022]
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24
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Lanthanide(III) Complexes of Diethylenetriaminepentaacetic Acid (DTPA)-Bisamide Derivatives as Potential Agents for Bimodal (Optical/Magnetic Resonance) Imaging. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300196] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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25
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Stasiuk GJ, Tamang S, Imbert D, Gateau C, Reiss P, Fries P, Mazzanti M. Optimizing the relaxivity of Gd(iii) complexes appended to InP/ZnS quantum dots by linker tuning. Dalton Trans 2013; 42:8197-200. [DOI: 10.1039/c3dt50774b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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