Friday, July 31, 2026
Science

Centuries-old planktonic shell mystery solved with discovery of self-assembling proteins

Biomaterials with extraordinary properties, such as spider silk, have so far been known primarily from animals. Researchers at the University of Salzburg in Austria have now deciphered a surprising counterpart from the world of single-celled organisms: The shells of tintinnids, microscopic planktoni...

Centuries-old planktonic shell mystery solved with discovery of self-assembling proteins
Image: Phys.org
Biomaterials with extraordinary properties, such as spider silk, have so far been known primarily from animals. Researchers at the University of Salzburg in Austria have now deciphered a surprising counterpart from the world of single-celled organisms: The shells of tintinnids, microscopic planktonic organisms, consist of self-assembling structural proteins that form a particularly resilient material and are capable of absorbing UV light. This is the first description of a biomaterial produced by a eukaryotic single-celled organism (protist), establishing tintinnids as a new model system for the future development of advanced biomaterials. More than 200 years after the discovery of tintinnids, the composition of their shells has finally been deciphered.

Originally published at Phys.org

The Morning Briefing

Subscribe to our Newsletter

Be the first to receive the latest news, market analysis and updates — delivered straight to your inbox.