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Basly B, Alnasser T, Aissou K, Fleury G, Pecastaings G, Hadziioannou G, Duguet E, Goglio G, Mornet S. Optimization of Magnetic Inks Made of L1(0)-Ordered FePt Nanoparticles and Polystyrene-block-Poly(ethylene oxide) Copolymers. Langmuir 2015; 31:6675-6680. [PMID: 26035091 DOI: 10.1021/acs.langmuir.5b00942] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The preparation of magnetic inks stable over time made of L10-ordered FePt nanoparticles, thiol-ended poly(ethylene glycol) methyl ether (mPEO-SH) compatibilizing macromolecules and asymmetric polystyrene-block-poly(ethylene oxide) copolymers (BCP) as a subsequent self-organizing medium was optimized. It was demonstrated that the use of sacrificial MgO shells as physical barriers during the annealing stage for getting the L10-ordered state makes easier and more efficient the anchoring of compatibilizing PEO macromolecules onto the nanoparticles surface. L10-FePt grafted nanoparticles have shown a good colloidal stability and affinity with the PEO domains of the BCP leading to L10-FePt/BCP composite thin layers with individual magnetic dots dispersed in the BCP matrix.
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Affiliation(s)
- Brice Basly
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Thomas Alnasser
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Karim Aissou
- ‡Université Bordeaux, CNRS, LCPO, UMR 5629, F-33600 Pessac, France
| | - Guillaume Fleury
- ‡Université Bordeaux, CNRS, LCPO, UMR 5629, F-33600 Pessac, France
| | | | | | - Etienne Duguet
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Graziella Goglio
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Stéphane Mornet
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
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Basly B, Popa G, Fleutot S, Pichon BP, Garofalo A, Ghobril C, Billotey C, Berniard A, Bonazza P, Martinez H, Felder-Flesch D, Begin-Colin S. Effect of the nanoparticle synthesis method on dendronized iron oxides as MRI contrast agents. Dalton Trans 2013. [DOI: 10.1039/c2dt31788e] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Lamanna G, Kueny-Stotz M, Mamlouk-Chaouachi H, Ghobril C, Basly B, Bertin A, Miladi I, Billotey C, Pourroy G, Begin-Colin S, Felder-Flesch D. Dendronized iron oxide nanoparticles for multimodal imaging. Biomaterials 2011; 32:8562-73. [DOI: 10.1016/j.biomaterials.2011.07.026] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Accepted: 07/08/2011] [Indexed: 10/17/2022]
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Basly B, Felder-Flesch D, Perriat P, Pourroy G, Bégin-Colin S. Properties and suspension stability of dendronized iron oxide nanoparticles for MRI applications. Contrast Media Mol Imaging 2010; 6:132-8. [DOI: 10.1002/cmmi.416] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2010] [Revised: 07/27/2010] [Accepted: 08/06/2010] [Indexed: 11/11/2022]
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Basly B, Felder-Flesch D, Perriat P, Billotey C, Taleb J, Pourroy G, Begin-Colin S. Dendronized iron oxide nanoparticles as contrast agents for MRI. Chem Commun (Camb) 2009; 46:985-7. [PMID: 20107672 DOI: 10.1039/b920348f] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covalent attachment, through a phosphonate anchor, of hydrophilic pegylated dendrons on iron oxide nanoparticles results in versatile, robust, and highly relaxing MRI contrast agents.
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Affiliation(s)
- Brice Basly
- IPCMS, UMR CNRS-UdS-ECPM 7504 23 rue du loess BP 43, 67034 Strasbourg, France
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Gaudon M, Basly B, Fauque Y, Majimel J, Delville MH. Thermochromic Phase Transition on CuMo0.9W0.1O4@SiO2Core−Shell Particles. Inorg Chem 2009; 48:2136-9. [DOI: 10.1021/ic802057c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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