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Related Experiment Video

Updated: Jun 17, 2025

Shape Memory Polymers for Active Cell Culture
10:53

Shape Memory Polymers for Active Cell Culture

Published on: July 4, 2011

13.4K

NIR-induced photothermal-responsive shape memory polyurethane for versatile smart material applications.

Ki Yan Lam1, Choy Sin Lee1, Rachel Yie Hang Tan2

  • 1Department of Pharmaceutical Chemistry, School of Pharmacy, IMU University No. 126, Jalan Jalil Perkasa 19, Bukit Jalil 57000 Kuala Lumpur Malaysia choysin_lee@imu.edu.my.

RSC Advances
|August 6, 2024
PubMed
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Shape memory polyurethanes (SMPUs) are enhanced with photothermal agents for faster, more efficient shape changes using near-infrared light. This advancement overcomes limitations of traditional thermal-responsive SMPUs, expanding smart material applications.

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Smart Materials

Background:

  • Shape memory polyurethanes (SMPUs) offer stimuli-responsive properties for smart material applications.
  • Thermally-responsive SMPUs have limitations including slow response times and high energy requirements.
  • Existing thermal SMPUs can damage heat-sensitive components, limiting their use.

Purpose of the Study:

  • To review near-infrared (NIR) light-induced photothermal agents in SMPU systems.
  • To discuss synthesis methods and photothermal-responsive mechanisms of these advanced SMPUs.
  • To analyze the advantages, limitations, and challenges of NIR-induced photothermal SMPUs.

Main Methods:

  • Literature review of photothermal agents incorporated into SMPU matrices.

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Last Updated: Jun 17, 2025

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  • Analysis of synthesis strategies for photothermal SMPUs.
  • Examination of photothermal conversion mechanisms under NIR irradiation.

    • Main Results:

    • Incorporating photothermal agents into SMPUs enables faster, localized shape recovery via NIR light.
    • NIR-induced photothermal SMPUs demonstrate dual responsiveness and improved mechanical properties.
    • These materials offer enhanced compatibility with heat-sensitive applications.

    Conclusions:

    • NIR-induced photothermal SMPUs represent a significant advancement over traditional thermal SMPUs.
    • These materials offer a promising pathway for next-generation smart devices and structures.
    • Further research is needed to address current challenges in development and application.