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Updated: Dec 29, 2025

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
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Cell alignment by smectic liquid crystal elastomer coatings with nanogrooves.

Greta Babakhanova1,2, Jess Krieger3, Bing-Xiang Li1,2

  • 1Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, Ohio.

Journal of Biomedical Materials Research. Part A
|February 9, 2020
PubMed
Summary

Researchers developed novel polymer substrates using liquid crystal elastomers to control cell behavior. These nanogrooved surfaces effectively align human dermal fibroblasts, showing promise for tissue engineering applications.

Keywords:
human dermal fibroblast alignmentliquid crystal elastomer substratesnanotopography

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Last Updated: Dec 29, 2025

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Cell Biology

Background:

  • Controlling cell behavior via substrate topography is crucial for biomedical applications.
  • Traditional methods for creating patterned polymer substrates are complex and require specialized equipment.
  • Liquid crystal elastomers (LCEs) offer tunable properties for advanced material design.

Purpose of the Study:

  • To introduce a novel method for creating cell-aligning polymer topographies.
  • To investigate the use of polymerized smectic A (SmA) liquid crystal elastomer (LCE) for surface patterning.
  • To evaluate the efficacy of SmA LCE nanogrooves in aligning human dermal fibroblasts.

Main Methods:

  • Utilizing the anisotropic elastic properties of polymerized SmA LCE.
  • Depositing SmA liquid crystal coating onto a substrate with planar molecular alignment.
  • Inducing nanogroove formation at the free surface of the LCE coating.
  • Photopolymerization of the nanostructured LCE surface.

Main Results:

  • SmA LCE coatings spontaneously developed surface nanogrooves upon photopolymerization.
  • These nanogrooves demonstrated excellent ability to align human dermal fibroblasts over large areas.
  • High-quality cell alignment was observed on both bare SmA LCE and fibronectin-coated substrates.

Conclusions:

  • Polymerized SmA LCE provides a facile route to create effective cell-aligning nano-topographies.
  • This approach offers a promising alternative to conventional lithographic techniques for fabricating biomaterials.
  • SmA LCE nano-topographies hold significant potential for advancing tissue engineering strategies.