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Hydrogel Adhesives for Gastrointestinal Perforation: Design Principles and Applications.

Yudi Pang1,2, Shuai Tian3,4, Qinyu Han5

  • 1School of Interdisciplinary Science Beijing Institute of Technology Beijing China.

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Summary

Hydrogel adhesives offer promising solutions for gastrointestinal (GI) perforations, but challenges remain in wet, acidic environments. This review explores hydrogel designs and applications for improved GI wound healing.

Keywords:
covalent bondinggastrointestinal perforationhydrogel adhesivesnoncovalent interactionwet adhesion

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Area of Science:

  • Biomaterials Science
  • Gastroenterology
  • Tissue Engineering

Background:

  • Gastrointestinal (GI) perforation is a critical condition requiring surgical intervention or advanced wound closure methods.
  • Hydrogel adhesives are attractive for GI applications due to their biocompatibility and atraumatic properties.
  • Existing hydrogel adhesives face limitations in the challenging wet and acidic gastric environment.

Purpose of the Study:

  • To review current design strategies for hydrogel adhesives targeting GI perforations.
  • To elucidate the mechanisms and properties of hydrogel adhesives based on molecular interactions.
  • To summarize the clinical applications and future directions of hydrogel adhesives in GI management.

Main Methods:

  • Review of literature on hydrogel adhesive design principles, focusing on covalent and noncovalent bonding.
  • Analysis of material properties and adhesive mechanisms relevant to the GI tract.
  • Compilation of representative studies on hydrogel adhesive applications in GI perforations.

Main Results:

  • Hydrogel adhesives can be engineered using covalent and noncovalent interactions to enhance adhesion in wet environments.
  • Key material properties influencing performance include swelling, mechanical strength, and degradation.
  • Successful applications in GI models demonstrate potential for promoting wound healing and sealing perforations.

Conclusions:

  • Hydrogel adhesives represent a significant advancement in managing GI perforations.
  • Overcoming the challenges of the gastric environment is crucial for clinical translation.
  • Further research into advanced hydrogel designs will enhance their efficacy and broaden their clinical utility.