HONGISTO, Mikko; GHANAVATI, Sonya; LEMIERE, Arnaud; HAUSS, Gregory; BORAIAH, Shashank; CORNET, Louis; POULON-QUINTIN, Angeline; PAGNOUX, Dominique; BERNARD, Dominique; MASSERA, Jonathan; PETIT, Laeticia; JUBERA, Veronique; DANTO, Sylvain

doi:10.1111/jace.19304

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HONGISTO, Mikko
Photonics Laboratory
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

GHANAVATI, Sonya
Photonics Laboratory
Faculty of Medicine and Health Technology [Tampere, Finland]

LEMIERE, Arnaud
Photonics Laboratory

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Article de revue

Ce document a été publié dans

Journal of the American Ceramic Society. 2023, vol. 106, n° 11, p. 6527-6540

Wiley

Résumé en anglais

Here, we report on core–clad bioactive borosilicate fibers, that we have prepared both with round and rectangular cross‐section profile. The exposed approach, which relies on the stacking and drawing of glass slabs, demonstrates our ability to develop bioactive‐based glass fibers with tailored cross‐section profiles. Tens‐of‐meters‐long fibers were successfully drawn, although suffering from elevated losses in the case of the rectangular ones. The response of the fibers in simulated body fluid was studied for both geometries. We found that a round cladding can act as protective layer, tempering effects of the corrosion. We also noticed that rectangular fibers are more prone to degradation, the enhanced corrosion beginning from their sharp corners as they accumulated residual tensile stress during drawing. To the best of our knowledge, this is the first report on the effect of residual tensile stresses from surface tension deformations applied to the corrosion of rectangular fibers. As geometry plays a critical role on the biodegradation behavior of the fiberglass, we believe the enclosed results could lead to the design of fiber devices with tailored cross‐section profile in order to tune their rate of degradation on solely based geometrical effects.< Réduire

Mots clés en anglais

Fibers

Borosilicate glass

Bioactive glass

Biodegradation

DOI

http://dx.doi.org/10.1111/jace.19304

Project ANR

University of Bordeaux Graduate Scholl in Light Sciences & Technologies - ANR-17-EURE-0027

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Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026