Bristle Worm Jaws Mimic Metal Alloys with 3,300-Test Protein-Ion Structure
Updated
Updated · geneonline · Jul 15
Bristle Worm Jaws Mimic Metal Alloys with 3,300-Test Protein-Ion Structure
3 articles · Updated · geneonline · Jul 15
Summary
TU Wien and University of Vienna researchers found that Perinereis cultrifera jaws achieve metal-like mechanical performance by embedding metal ions in a protein matrix rather than using true metallic tissue.
The ion-protein structure gives the predatory marine worm high durability and strength, helping the jaws keep their integrity while hunting.
More than 3,300 experiments in related work showed hardness and elasticity patterns usually seen in synthetic metals, with earlier reports highlighting zinc among the incorporated ions.
The findings add evidence for so-called “bio-metals” — biological materials that match some alloy-like behavior — and could guide development of hard, lightweight engineered materials.