Many research groups are trying to develop materials with similar properties to muscles. One of the big difficulties is creating anything with just the right muscle-like elasticity--its ability to change shape while withstanding a large strain. Now researchers at the University of British Columbia (UBC) in Vancouver, Canada, have synthesized a protein-based material that stretches exactly like the real thing.
The new material achieves the elasticity of muscle by mimicking the microscopic structure of a giant muscle protein called titin. The structure of titin resembles a string with beads--globules of folded protein sequences are connected by floppy, unstructured sequences. Hongbin Li, a chemist at the UBC, and his colleagues constructed the new material that imitates this structure. They chose a mechanically stable protein sequence that folds in on itself to form globules, and another protein called resilin to serve as the floppy connectors.
To read the full, original article click on this link: Technology Review: Biomaterial Stretches Like Muscle
Author: Corinna Wu