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Rigidity and Mechanical Response in Biological Structures
Kelly Aspinwall1, Tyler Hain1, M Lisa Manning1
1Physics Department and BioInspired Institute, Syracuse University, Syracuse, New York, USA;
Annual Review of Biophysics
|February 10, 2026
Summary
Emergent rigidity in biological networks arises from component interactions, not individual parts. This review explores mechanisms driving these transitions, aiding researchers in understanding biomechanical systems and generating new hypotheses.
Area of Science:
- Biophysics
- Mechanobiology
- Materials Science
Background:
- Rigidity is an emergent property in biological systems, crucial for form and function.
- Floppy-rigid and fluid-solid transitions are observed across biological scales.
Purpose of the Study:
- To review mechanisms driving emergent rigidity transitions in biomechanical networks.
- To connect mathematical formalisms with experimental observations of rigidity.
- To aid researchers in identifying rigidity mechanisms in their systems.
Main Methods:
- Literature review of biomechanical networks.
- Analysis of mathematical models for rigidity transitions.
- Synthesis of experimental evidence for emergent rigidity.
Main Results:
- Identified diverse mechanisms driving emergent rigidity.
- Highlighted universal mechanical features across biological systems.
- Provided frameworks for understanding rigidity in biological contexts.
Conclusions:
- Emergent rigidity is a key principle in biological mechanics.
- Understanding these transitions aids in hypothesis generation for biological phenomena.
- Future research directions include tuning rigidity over developmental and evolutionary timescales.
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