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18 April 2022 Dielectrophoresis structuring of BaTiO3-NaNbO3/PDMS composites: towards medical sensing monitoring
Giulia D'Ambrogio, Omar Zahhaf, Nellie Della Schiava, Minh-Quyen Le, Patrick Lermusiaux, Marine Bordet, Pierre-Jean Cottinet, Jean-Fabien Capsal
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Proceedings Volume PC12048, Health Monitoring of Structural and Biological Systems XVI; PC120480O (2022) https://doi.org/10.1117/12.2607178
Event: SPIE Smart Structures + Nondestructive Evaluation, 2022, Long Beach, California, United States
Abstract
Piezoelectric composites play an important role in the field of sensors. However, composites with randomly dispersed fillers are not efficient, especially when compared to electroactive polymers. Via dielectrophoresis technique we developed composites with fillers, spherical and fiber-shaped, arranged in columnar structures through the thickness of the material. The chosen matrix is thermosetting polydimethylsiloxane, known for its flexibility and biocompatibility, while the fillers are NaNbO3 and BaTiO3. The designed sensors are extremely efficient and comparable to electroactive polymers, and are suitable to be integrated in medical devices, such as smart catheters and bio-scaffolds.
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Giulia D'Ambrogio, Omar Zahhaf, Nellie Della Schiava, Minh-Quyen Le, Patrick Lermusiaux, Marine Bordet, Pierre-Jean Cottinet, and Jean-Fabien Capsal "Dielectrophoresis structuring of BaTiO3-NaNbO3/PDMS composites: towards medical sensing monitoring", Proc. SPIE PC12048, Health Monitoring of Structural and Biological Systems XVI, PC120480O (18 April 2022); https://doi.org/10.1117/12.2607178
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KEYWORDS
Composites
Dielectrophoresis
Ferroelectric polymers
Polymers
Dielectrics
Smart materials
Spherical lenses
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