Scientists discover a strange property in rice and turn it into a smart material

· ScienceDaily — Materials · 2026

A rice-derived, pressure-rate-dependent effect was used to engineer a material that automatically adapts stiffness to distinguish gentle motion from sudden impacts.

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Plain English summary

The report says researchers found rice has an unusual mechanical behavior: it becomes weaker when compressed quickly, but remains stronger when pressure is applied slowly. They then used this behavior to engineer a new smart material that responds differently depending on how an external force is applied—changing stiffness for gentle movements versus sudden impacts. The abstract claims this stiffness adaptation could help create safer soft robots and protective equipment that reacts instantly during collisions.

Why this matters

Using a newly discovered pressure-rate-dependent property of rice to engineer a smart material with automatic stiffness adaptation for different impact conditions. No information is provided about prototypes, testing stages, manufacturability, or deployment.

Key findings

  • Rice weakens under rapid compression but stays stronger under slow pressure application.
  • An engineered material was created to react differently to gentle movements versus sudden impacts.
  • The material can adapt its stiffness automatically based on loading conditions.
  • Potential use cases include safer soft robotics and collision-responsive protective equipment.

Limitations

The abstract does not provide experimental details, material composition, quantitative performance metrics, durability/repeatability, or how the rice effect is translated into the engineered material.

Publication

Publisher
ScienceDaily
Journal
ScienceDaily — Materials
Publication date
June 11, 2026
Research type
News
Access
open

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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-5.4-nano-2026-03-17