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Instantly adhesive and ultra-elastic patches for dynamic organ and wound repair
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Instantly adhesive and ultra-elastic patches for dynamic organ and wound repair
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Journal Article
Instantly adhesive and ultra-elastic patches for dynamic organ and wound repair
2024
Overview
Bioadhesive materials and patches are promising alternatives to surgical sutures and staples. However, many existing bioadhesives do not meet the functional requirements of current surgical procedures and interventions. Here, we present a translational patch material that exhibits instant adhesion to tissues (2.5-fold stronger than Tisseel, an FDA-approved fibrin glue), ultra-stretchability (stretching to >300% its original length without losing elasticity), compatibility with rapid photo-projection (<2 min fabrication time/patch), and ability to deliver therapeutics. Using our established procedures for the in silico design and optimization of anisotropic-auxetic patches, we created next-generation patches for instant attachment to tissues while conforming to a broad range of organ mechanics ex vivo and in vivo. Patches coated with extracellular vesicles derived from mesenchymal stem cells demonstrate robust wound healing capability in vivo without inducing a foreign body response and without the need for patch removal that can cause pain and bleeding. We further demonstrate a single material-based, void-filling auxetic patch designed for the treatment of lung puncture wounds.
Bioadhesive materials and patches are promising alternatives to surgical sutures and staples but many existing bioadhesives do not meet the functional requirements of current surgical procedures. Here the authors present a tissue adhesive, stretchable and rapid photo-projection compatible translational patch material which is able to deliver therapeutics.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
