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Related Experiment Video

Updated: Mar 21, 2026

Shape Memory Polymers for Active Cell Culture
10:53

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Continuously Tunable Wettability by Using Surface Patterned Shape Memory Polymers with Giant Deformability.

Lingyu Zhao1,2,3, Jun Zhao1, Yayun Liu1

  • 1CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.

Small (Weinheim an Der Bergstrasse, Germany)
|May 12, 2016
PubMed
Summary
This summary is machine-generated.

Researchers developed smart surfaces with tunable wettability using shape memory polymers. These surfaces offer adjustable properties for various applications by controlling recovery temperature and time.

Keywords:
shape memory polymerssmart surfacessurface patternswettability

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Area of Science:

  • Materials Science
  • Surface Chemistry

Background:

  • Designing smart surfaces with tunable wettability is crucial for advanced applications.
  • Existing methods often require specialized materials or complex fabrication processes.

Purpose of the Study:

  • To propose a novel strategy for creating smart surfaces with tunable wettability.
  • To utilize the giant deformability of patterned shape memory polymers for wettability control.

Main Methods:

  • Chemically crosslinked polycyclooctene was used to create patterned shape memory polymer surfaces.
  • Surface wettability was tuned by controlling the recovery temperature and/or time of the polymer.
  • Modified titanium dioxide nanoparticles were coated onto the surfaces to achieve superhydrophobicity.

Main Results:

  • The smart surfaces demonstrated continuously tunable wettability.
  • Coating with titanium dioxide nanoparticles enhanced superhydrophobicity and expanded the tunable contact angle range.
  • Theoretical calculations using the modified Cassie model accurately explained the observed tunable wettability.

Conclusions:

  • Patterned shape memory polymers offer a facile route to smart surfaces with tunable wettability.
  • The developed surfaces show potential for applications requiring dynamic control over surface properties.
  • This approach overcomes limitations of previous methods by using readily available materials and straightforward processing.