Photoresponsive Slide‐Ring Gels Enable Modulation of Sliding Dynamics

Dalila Cafagno, Serena Silvi, Mark W. Tibbitt, Stefan Mommer · Wiley · 2025

This study introduces light-responsive slide-ring gels that can reversibly switch between stiff and soft states by modulating sliding dynamics through photoswitching.

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Plain English summary

This research presents a new type of slide-ring gel that responds to light. These gels contain azobenzene polymers that change their properties when exposed to UV light. This change allows the gels to switch between stiff and soft states, enhancing their versatility.

Why this matters

The ability to control the mechanical properties of materials with light can lead to advancements in various applications, such as soft robotics and adaptive structures. This research opens new avenues for developing smart materials that can respond dynamically to external stimuli.

Key findings

  • Introduction of light-responsive slide-ring gels based on azobenzene-containing polymers.
  • Reversible photoswitching modulates sliding dynamics of α-cyclodextrin macrocycles.
  • Mechanical properties can alternate between stiff and soft states.
  • Demonstrates the potential for external stimulus control in SRGs.
  • Highlights the unique topology and energy dissipation capabilities of SRGs.

What's new

The introduction of light-responsive capabilities to slide-ring gels, allowing for dynamic control of their mechanical properties.

Limitations

The abstract does not specify practical applications or commercial readiness of the materials.

Commercial context

The research is in the conceptual stage and does not indicate any commercial applications or readiness.

Publication

Publisher
Wiley
Publication date
July 20, 2025
Research type
Paper
License
http://creativecommons.org/licenses/by-nc-nd/4.0/

Tags

Method note: Summaries and ratings on this page are generated by AI from the abstract only. Read the original paper for full context. · Model: gpt-4o-mini-2024-07-18