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Thermo-Responsive Hydrogels: From Recent Progress to Biomedical Applications.

Kaiwen Zhang1, Kun Xue2, Xian Jun Loh2,3

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Summary
This summary is machine-generated.

Thermogels are smart hydrogels that turn from liquid to solid with increasing temperature. This review covers their gelation mechanisms and applications in drug delivery and tissue engineering.

Keywords:
LCST polymerbiomedicalin situ hydrogelsupramolecular hydrogelthermogel

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Area of Science:

  • Materials Science
  • Polymer Science
  • Biomedical Engineering

Background:

  • Thermogels, or thermo-responsive hydrogels, exhibit a sol-gel transition upon heating.
  • Their behavior stems from multiscale mechanisms like LCST, micellization, and micelle aggregation.
  • Thermogels are injectable and form in situ gels at body temperature, serving as versatile platform biomaterials.

Purpose of the Study:

  • To review recent advancements in thermogel research.
  • To explore thermogel gelation mechanisms.
  • To summarize thermogel applications in drug delivery, 3D cell culture, and tissue engineering.

Main Methods:

  • Literature review of thermogel research.
  • Analysis of thermogelation mechanisms (LCST, micellization, aggregation).
  • Compilation of applications in biomaterial contexts.

Main Results:

  • Thermogels leverage polymer properties for temperature-dependent phase transitions.
  • Injectable thermogels form stable in situ gels at physiological temperatures.
  • Key applications include controlled drug release, advanced 3D cell cultures, and tissue regeneration.

Conclusions:

  • Thermogels are promising biomaterials due to their tunable properties and in situ gelation.
  • Further research directions in thermogel science are identified.
  • The review highlights the potential of thermogels in regenerative medicine and beyond.