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Current issue

ELEKTRO 2/2020 was released on February 12th 2020. Its digital version will be available on March 12th 2020.

Topic: Electrical apparatus, Internet of Things; Medical technologies

Main Article
Monitoring vacancy of an intelligent building

SVĚTLO (Light) 1/2020 was released on February 3th 2020. Its digital version will be available on March 3th 2020.

Fairs and exhibitions
Invitation for Light+Building 2020 – attendant programme
Prolicht+Sound fair celebrates the 25th birthday
FOR CITY 2020 introduces oneself in parallel to FOR ARCH fair

Luminaires and light apparatuses
Modern trends in automobile headlamps

Sheaths Become Mighty New Layer in Research Team’s Artificial Muscles

12.07.2019 | University of Texas in Dallas | www.utdallas.edu

Over the last 15 years, researchers at The University of Texas at Dallas and their international colleagues have invented several types of strong, powerful artificial muscles using materials ranging from high-tech carbon nanotubes (CNTs) to ordinary fishing line.

In a new study published in the journal Science, the researchers describe their latest advance, called sheath-run artificial muscles, or SRAMs. The research group’s previous muscles were made by twisting CNT yarn, polymer fishing line or nylon sewing thread. By twisting these fibers to the point that they coil, the researchers produced muscles that dramatically contract, or actuate, along their length when heated and return to their initial length when cooled.

Artificial muscles

To form the new muscles, the research team applied a polymer coating to twisted CNT yarns, as well as to inexpensive nylon, silk and bamboo yarns, creating a sheath around the yarn core. When operated electrochemically, a muscle consisting of a CNT sheath and a nylon core generated an average contractile power that is 40 times that of human muscle and nine times that of the highest power alternative electrochemical muscle.

Read more at University of Texas in Dallas

Image Credit: University of Texas in Dallas

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