Multifunctional Dual Cross-Linked Bioadhesive Patch with Low Immunogenic Response and Wet Tissues Adhesion.

Adv Healthc Mater

BMI Center for Biomass Materials and Nanointerfaces, College of Biomass Science and Engineering, Sichuan University, Chengdu, Sichuan, 610065, China.

Published: February 2023

AI Article Synopsis

  • The development of a new protein-based bioadhesive patch (PBP) combines strong adhesion, water resistance, and high biocompatibility, addressing key challenges in tissue adhesives.
  • PBP demonstrates superior adhesion to biological surfaces compared to traditional bioadhesives, like polyethylene glycol and fibrin, achieved by removing interfacial water and leveraging metal ion interactions.
  • Its biocompatibility is confirmed with minimal immunogenic response, making PBP a promising option for biomedical applications in wound healing and organ sealing.

Article Abstract

The development of bioadhesives is an important, yet challenging task as seemingly mutually exclusive properties need to be combined in one material, that is, strong adhesion, water resistance, and high biocompatibility. Here, a biocompatible and biodegradable protein-based bioadhesive patch (PBP) with high adhesion strength and low immunogenic response is reported. PBP exists as a strong adhesion for biological surfaces, which is higher than some conventional bioadhesives (i.e., polyethylene glycol and fibrin). Robust adhesion and strength are realized through the removal of interfacial water and fast formation of multiple supramolecular interactions induced by metal ions. The PBP's high biocompatibility is evaluated and immunogenic response in vitro and in vivo is neglected. The strong adhesion on soft biological tissues qualifies the PBP as biomedical glue outperforming some commercial products for applications in hemostasis performance, accelerated wound healing, and sealing of defected organs, anticipating to be useful as a tissue adhesive and sealant.

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Source
http://dx.doi.org/10.1002/adhm.202201578DOI Listing

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