| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Capsal, Jean-Fabien
Institut National des Sciences Appliquées de Lyon
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024Fully printable, plasticized fluorinated terpolymers for active mirror morphing control
- 2022Molten-State Dielectrophoretic Alignment of EVA/BaTiO3 Thermoplastic Composites: Enhancement of Piezo-Smart Sensor for Medical Applicationcitations
- 2021Actuators for MRE: New Perspectives With Flexible Electroactive Materialscitations
- 20213D-printed electroactive polymer force-actuator for large and high precise optical mirror applicationscitations
- 2021Structuring BaTiO 3 /PDMS Nanocomposite via Dielectrophoresis for Fractional Flow Reserve Measurementcitations
- 2021Effect of dielectrophoretic structuring on dielectric and piezoelectric behaviors of ZnO/PDMS microcompositecitations
- 2021Characterizing and Optimizing Piezoelectric Response of ZnO Nanowire/PMMA Composite-Based Sensorcitations
- 2020Enhancing dielectric and piezoelectric properties of micro-ZnO/PDMS composite-based dielectrophoresiscitations
- 2020Advanced Plasticized Electroactive Polymers Actuators for Active Optical Applications: Live Mirrorcitations
- 2020Boosted energy-storage efficiency by controlling conduction loss of multilayered polymeric capacitorscitations
- 2019Optimization and characterization of inkjet-printed ferroelectric capacitor for human body detection
- 2019Induction heating-based low-frequency alternating magnetic field: High potential of ferromagnetic composites for medical applicationscitations
- 2019Surface Correction Control Based on Plasticized Multilayer P(VDF‐TrFE‐CFE) Actuator—Live Mirrorcitations
- 2019Abatement of high-voltage leakage current in electrostrictive fluorinated polymers through electro-annealing
- 2019Reducing leakage current and dielectric losses of electroactive polymers through electro-annealing for high-voltage actuationcitations
- 2018Processing optimization: A way to improve the ionic conductivity and dielectric loss of electroactive polymerscitations
- 20184D Printing based piezoelectric composite for medical applicationscitations
- 2015Magnetoelectric properties of nickel nanowires-P(VDF–TrFE) compositescitations
- 2014A comprehensive investigation of poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) terpolymer nanocomposites with carbon black for electrostrictive applicationscitations
- 2012Evaluation of macroscopic polarization and actuation abilities of electrostrictive dipolar polymers using the microscopic Debye/Langevin formalismcitations
- 2012Piezoelectric sensing coating for real time impact detection and location on aircraft structurescitations
- 2012Piezoelectric properties of polyamide 11/NaNbO 3 nanowire compositescitations
- 2012Modeling of thickness effect and polarization saturation in electrostrictive polymerscitations
- 2012Piezoelectric properties of polyamide 11/NaNbO3nanowire compositescitations
- 2011Molecular mobility in piezoelectric hybrid nanocomposites with 0-3 connectivity: Particles size influencecitations
- 2011Molecular mobility in piezoelectric hybrid nanocomposites with 0–3 connectivity: Volume fraction influencecitations
- 2010Dynamic mechanical behaviour of polyamide 11/Barium titanate ferroelectric compositescitations
- 2008Thermally stimulated current and dielectric relaxation of inorganic/organic ferroelectric nanocomposites
- 2007Electroactive influence of ferroelectric nanofillers on polyamide 11 matrix propertiescitations
Places of action
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article
Actuators for MRE: New Perspectives With Flexible Electroactive Materials
Abstract
International audience ; Since 1995, Magnetic Resonance Elastography (MRE) has been constantly developed as a non-invasive diagnostic tool for quantitative mapping of mechanical properties of biological tissues. Indeed, mechanical properties of tissues vary over five orders of magnitude (the shear stiffness is ranging from 10 2 Pa for fat to 10 7 Pa for bones). Additionally, these properties depend on the physiological state which explains the granted benefit of MRE for staging liver fibrosis and its potential in numerous medical and biological domains. In comparison to the other modalities used to perform such measurement, Magnetic Resonance (MR) techniques offer the advantages of acquiring 3D high spatial resolution images at high penetration depth. However, performing MRE tissue characterization requires low frequency shear waves propagating in the tissue. Inducing them is the role of a mechanical actuator specifically designed to operate under Magnetic Resonance Imaging (MRI) specific restrictions in terms of electromagnetic compatibility. Facing these restrictions, many different solutions have been proposed while keeping a common structure: a vibration generator, a coupling device transmitting the vibration and a piston responsible for the mechanical coupling of the actuator with the tissue. The following review details the MRI constraints and how they are shaping the existing actuators. An emphasis is put on piezoelectric solutions as they solve the main issues encountered with other actuator technologies. Finally, flexible electroactive materials are reviewed as they could open great perspectives to build new type of mechanical actuators with better adaptability, greater ease-of-use and more compactness of dedicated actuators for MRE of small soft samples and superficial organs such as skin, muscles or breast.