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Related Experiment Video

Updated: Mar 17, 2026

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
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A Multi-Responsive Film from Polymerizable Cholesteric Liquid Crystal Microcapsules for Advanced Anti-Counterfeiting.

Longxiang He1, Jiaxin Huo1, Baohua Yuan1

  • 1Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, China.

Macromolecular Rapid Communications
|March 16, 2026
PubMed
Summary
This summary is machine-generated.

New cholesteric liquid crystal microcapsules (CLCMs) show tunable structural color changes in response to light, heat, and humidity. This multi-stimuli responsiveness offers potential for advanced anti-counterfeiting and sensor applications.

Keywords:
anti‐counterfeitingcholesteric liquid crystalemulsionsmicrocapsulesphotoresponsive

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Optics

Background:

  • Cholesteric liquid crystals (CLCs) encapsulated in microcapsules (CLCMs) offer improved LC orientation and stability.
  • Existing CLCMs lack multi-stimuli responsiveness.

Purpose of the Study:

  • To develop CLCMs with enhanced multi-stimuli responsiveness.
  • To investigate the use of polymerizable LC monomers for creating responsive CLCM films.

Main Methods:

  • Utilized ultrasonic emulsification to encapsulate polymerizable LC monomers within CLCMs.
  • Polymerized the core LC monomers using UV irradiation to form polymer networks.
  • Investigated the response of the CLCM films to light, temperature, and humidity.

Main Results:

  • The prepared CLCM films exhibited structural color changes.
  • The patterned coloration disappeared upon exposure to sunlight.
  • The film's pattern appeared and then vanished with increasing temperature, leading to transparency.
  • The CLCM films demonstrated responsiveness to light, heat, and humidity.

Conclusions:

  • Polymerizable CLCMs show significant multi-stimuli responsiveness.
  • These advanced CLCMs hold promise for applications in anti-counterfeiting and sensor technologies.