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Updated: Jan 20, 2026

Shape Memory Polymers for Active Cell Culture
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A Self-Healing and Shape Memory Polymer that Functions at Body Temperature.

Hui-Ying Lai1, Hong-Qin Wang1, Jian-Cheng Lai1

  • 1State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China.

Molecules (Basel, Switzerland)
|September 7, 2019
PubMed
Summary

Researchers developed a dual-functional polymer combining shape memory and self-healing. This polymer, PDMS-COO-E, exhibits body-temperature-triggered shape memory and efficient self-healing for biomedical applications.

Keywords:
PDMShydrogen bondingself-healingshape memory

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Area of Science:

  • Materials Science
  • Polymer Chemistry

Background:

  • Dual-functional polymers with shape memory and self-healing properties are highly sought after.
  • Shape memory polymers functioning at human body temperature (37 °C) are crucial for biomedical applications.

Purpose of the Study:

  • To design and synthesize a novel polymer network exhibiting both shape memory and self-healing capabilities.
  • To investigate the potential of this polymer for biomedical and wearable electronic applications.

Main Methods:

  • A polymer network (PDMS-COO-E) was designed with permanent covalent crosslinking and abundant weak hydrogen bonds.
  • The material's mechanical properties, self-healing efficiency, and shape memory behavior at 37 °C were evaluated.

Main Results:

  • The PDMS-COO-E polymer films demonstrated excellent mechanical properties.
  • Efficient self-healing was observed within 6 hours at room temperature.
  • The polymer transitioned from a viscous to an elastic state at 37 °C, exhibiting body-temperature-triggered shape memory.

Conclusions:

  • The developed PDMS-COO-E polymer successfully integrates shape memory and self-healing functionalities.
  • Its body-temperature-activated shape memory and self-healing properties make it suitable for wearable electronics, biomedical devices, and 4D printing.