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Shape Memory Hydrogels for Biomedical Applications.

Aleeza Farrukh1, Sana Nayab2

  • 1Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697, USA.

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|April 26, 2024
PubMed
Summary
This summary is machine-generated.

Shape memory hydrogels (SMHs) offer biocompatibility and tunable properties for biomedical uses. This review covers their mechanisms, types, applications, and future potential in personalized medicine.

Keywords:
drug deliveryreconfigurable biomaterialsshape memory hydrogelssmart tissue engineering scaffoldssoft actuatorsstimuli-responsive polymer

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Area of Science:

  • Polymer Science
  • Biomedical Engineering
  • Materials Science

Background:

  • Shape memory polymers (SMPs) exhibit shape-changing abilities triggered by external stimuli, finding applications in diverse fields.
  • Shape memory hydrogels (SMHs) are particularly suitable for biomedical applications owing to their biocompatibility, shape morphing capabilities, tunable properties, and responsiveness to stimuli like heat, chemicals, and light.

Purpose of the Study:

  • This review provides a comprehensive overview of smart SMHs.
  • It details their fundamental working mechanisms, classification based on stimuli, and highlights clinical applications.
  • The review also discusses the potential of SMHs in surgical, biomedical, and tissue engineering fields.

Main Methods:

  • Review of existing literature on shape memory hydrogels.
  • Classification of SMHs based on stimuli-responsive mechanisms.
  • Analysis of current and potential clinical and tissue engineering applications.

Main Results:

  • SMHs possess unique features including biocompatibility, excellent shape morphing, tunable properties, and multi-stimuli responsiveness.
  • Various types of SMHs are classified according to their triggering stimuli (thermal, chemical, electrical, light).
  • Notable clinical applications and future potential in personalized medicine are discussed.

Conclusions:

  • SMHs present significant potential for advanced biomedical and tissue engineering applications.
  • Challenges in synthesis and fabrication of reconfigurable hydrogel interfaces need addressing.
  • Future research directions focus on personalized medicine and enhanced clinical translation.