APR 20, 2021 9:51 PM PDT

New Artificial Muscle Technology

WRITTEN BY: Nouran Amin

Scientists are always looking for ways to advance movements for robots. The adventure involves seeking new technologies and ‘soft’ robotics based on biomimetics.

Biomimetics are machine components used to mimic the actions of nature. For this study, these biomimetics were to mimic the movement of human muscles to ideally outperform them. The study is especially important because it notes the importance of transitioning robots to biological forms to assist humans in more ideal environments.

"We call these new linear actuators cavatappi artificial muscles based on their resemblance to the Italian pasta," says Michael Shafer, associate professor in the Department of Mechanical Engineering, at Northern Arizona University.

The study was published in a paper titled, "Cavatappi artificial muscles from drawing, twisting, and coiling polymer tubes”.

"The cavatappi artificial muscles are based on twisted polymer actuators (TPAs), which were pretty revolutionary when they first came out because they were powerful, lightweight and cheap. But they were very inefficient and slow to actuate because you had to heat and cool them. Additionally, their efficiency is only about two percent," Shafer said. "For the cavatappi, we get around this by using pressurized fluid to actuate, so we think these devices are far more likely to be adopted. These devices respond about as fast as we can pump the fluid. The big advantage is their efficiency. We have demonstrated contractile efficiency of up to about 45 percent, which is a very high number in the field of soft actuation."

Source: Science Daily

About the Author
  • Nouran is a scientist, educator, and life-long learner with a passion for making science more communicable. When not busy in the lab isolating blood macrophages, she enjoys writing on various STEM topics.
You May Also Like
FEB 11, 2021
Clinical & Molecular DX
Smartwatches Keep a Close Eye on Parkinson's Patients
FEB 11, 2021
Smartwatches Keep a Close Eye on Parkinson's Patients
Individuals with Parkinson’s disease experience a slow, progressive worsening of symptoms. What can begin as barel ...
FEB 17, 2021
Technology
Emojis and The Negative Vibe
FEB 17, 2021
Emojis and The Negative Vibe
Research has found that typing those negative emojis in your texts can make you appear negative to the sender. The study ...
FEB 19, 2021
Technology
AI Decodes Genome Biology
FEB 19, 2021
AI Decodes Genome Biology
Scientists at the Stowers Institute for Medical Research, along with partners at Stanford University and Technical Unive ...
MAR 11, 2021
Cell & Molecular Biology
Deadly Cancer Cells Can Move in the Wrong Direction
MAR 11, 2021
Deadly Cancer Cells Can Move in the Wrong Direction
Cancer is most deadly when it metastasizes; when cells break away from a primary site of cancer and move through the bod ...
MAY 10, 2021
Clinical & Molecular DX
Noninvasive Device Warns When Wounds Are Bleeding
MAY 10, 2021
Noninvasive Device Warns When Wounds Are Bleeding
Patients with kidney failure have to undergo hemodialysis—a process where a dialysis machine takes the place of ki ...
JUN 01, 2021
Space & Astronomy
Curiosity Captures Shimmering Martian Clouds
JUN 01, 2021
Curiosity Captures Shimmering Martian Clouds
Mars has a thin atmosphere without much humidity, making cloudy days rare. But clouds can be found sometimes near the Ma ...
Loading Comments...