Bioresorbable Bilayered Elastomer/Hydrogel Constructs with Gradual Interfaces for the Fast Actuation of Self-Rolling Tubes - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue ACS Applied Materials & Interfaces Année : 2022

Bioresorbable Bilayered Elastomer/Hydrogel Constructs with Gradual Interfaces for the Fast Actuation of Self-Rolling Tubes

Résumé

In the biomedical field, self-rolling materials provide interesting opportunities to develop medical devices suitable for drug or cell encapsulation. However, to date, a major limitation for medical applications is the use of non-biodegradable and non-biocompatible polymers that are often reported for such applications or the slow actuation witnessed with degradable systems. In this work, biodegradable self-rolling tubes that exhibit a spontaneous and rapid actuation when immersed in water are designed. Photo-crosslinkable hydrophilic and hydrophobic poly(ethylene glycol)-poly(lactide) (PEG-PLA) star-shaped copolymers are prepared and used to prepare bilayered constructs. Thanks to the discrete mechanical and swelling properties of each layer and the cohesive/gradual nature of the interface, the resulting bilayered films are able to self-roll in water in less than 30 s depending on the nature of the hydrophilic layer and on the shape of the sample. The cytocompatibility and degradability of the materials are demonstrated and confirm the potential of such self-rolling resorbable biomaterials in the field of temporary medical devices.

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Matériaux
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hal-03866356 , version 1 (15-01-2024)

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Mathilde Grosjean, Sidzigui Ouedraogo, Stéphane Déjean, Xavier Garric, Valeriy Luchnikov, et al.. Bioresorbable Bilayered Elastomer/Hydrogel Constructs with Gradual Interfaces for the Fast Actuation of Self-Rolling Tubes. ACS Applied Materials & Interfaces, 2022, 14 (38), pp.43719-43731. ⟨10.1021/acsami.2c11264⟩. ⟨hal-03866356⟩
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