| 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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Gerges, Tony
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024PHOTONIC CURING FOR IN-MOLD ELECTRONICS
- 2024A Toolbox to Develop and Produce In-Mold Electronics Devices
- 2024PHOTONIC CURING OF CONDUCTIVE SILVER INKS AND GLUES FOR IN-MOLD ELECTRONICS ON POLYCARBONATE AND BIO-BASED BIODEGRADABLE POLYLACTIC ACID FILMS
- 2023Evaluation of Polylactic Acid Polymer as a Substrate in Rectenna for Ambient Radiofrequency Energy Harvestingcitations
- 2023Radio-Frequency Energy Harvesting Using Rapid 3D Plastronics Protoyping Approach: A Case Studycitations
- 2023In-Mold Electronics on Poly(Lactic Acid): towards a more sustainable mass production of plastronic devicescitations
- 20233D printed polymer-based two-phase cooling system for power electronic devices
- 2022Cedar Wood-Based Biochar: Properties, Characterization, and Applications as Anodes in Microbial Fuel Cellcitations
- 20223D Plastronics Radio Frequency Energy Harvester on Stereolithography Partscitations
- 2021Actuators for MRE: New Perspectives With Flexible Electroactive Materialscitations
- 2020Development of conductive inks with bio-based matrix for Printed Electronics and 3D Structural Electronics.
- 2019Design of a volume MRI coil by metalyzing 3D printing substrates by electroless and/or electroplating processes
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.