방적사를 근육 속으로

연구진은 같은 길이와 무게의 인간근육보다 100배나 무거운 하중을 들어 올릴 수 있는 강력한 액추에이터,  또는 인공 근육을 낚시 줄 및 봉제 실을 방적하여 만들어 냈다. 

이러한 새로운 액추에이터는 온도 등의 여러 자극에 반응하며, 다양한 힘과 정밀한 제어가  필요한 여러 종류의 로봇 및 의족에 응용할 수 있을 것이다.

Read more about this research from the 21 February issue of Science here.

[Image courtesy of Science/AAAS]

© 2014 American Association for the Advancement of Science. All Rights Reserved.

방적사를 근육 속으로

연구진은 같은 길이와 무게의 인간근육보다 100배나 무거운 하중을 들어 올릴 수 있는 강력한 액추에이터, 또는 인공 근육을 낚시 줄 및 봉제 실을 방적하여 만들어 냈다.

이러한 새로운 액추에이터는 온도 등의 여러 자극에 반응하며, 다양한 힘과 정밀한 제어가 필요한 여러 종류의 로봇 및 의족에 응용할 수 있을 것이다.

Read more about this research from the 21 February issue of Science here.

[Image courtesy of Science/AAAS]

© 2014 American Association for the Advancement of Science. All Rights Reserved.

Spinning Yarn Into Muscles

Researchers have spun fishing line and sewing thread into strong actuators, or artificial muscles, that are capable of lifting loads 100 times heavier than human muscles of the same length and weight can manage.

These new actuators also respond to a number of stimuli, including temperature, and they may find applications in a wide range of robotics and prosthetics in which various degrees of strength and precise control are needed.

Read more about this research from the 21 February issue of Science here.

[Image courtesy of Science/AAAS]

© 2014 American Association for the Advancement of Science. All Rights Reserved.

Spinning Yarn Into Muscles

Researchers have spun fishing line and sewing thread into strong actuators, or artificial muscles, that are capable of lifting loads 100 times heavier than human muscles of the same length and weight can manage.

These new actuators also respond to a number of stimuli, including temperature, and they may find applications in a wide range of robotics and prosthetics in which various degrees of strength and precise control are needed.

Read more about this research from the 21 February issue of Science here.

[Image courtesy of Science/AAAS]

© 2014 American Association for the Advancement of Science. All Rights Reserved.

Study Reveals the Dance of Atoms in Glass

Click the image above to play the slideshow!

Although silicate glass is employed in many modern technologies, such as semiconductor devices and optical fibers, researchers have only glimpsed its atomic structure recently — and a better understanding of how such glass bends, breaks and melts at the atomic level could help to improve these technologies. Now, Pinshane Huang and colleagues have used a powerful combination of electron microscopy techniques to observe the individual dynamics of atoms in an amorphous silica film just two atoms thick.

Read more about this research from the 11 October issue of Science here.

[Slideshow mages courtesy of Melina Blees, Pinshane Huang, Jonathan Alden, David Muller, Simon Kurasch, Ute Kaiser]

© 2013 American Association for the Advancement of Science. All Rights Reserved.

Improving Stretchable Ionic Conductors, Clearly

Researchers have designed artificial muscles, or actuators, and loudspeakers that are stretchable and transparent, achieving a feat with implications broader than enhanced sound: The conductors could eventually find clinical applications as well. Instead of hard, electronic components, the researchers used soft, ionic hydrogels as electrodes to build their stretchable speakers.

Read more about this research from the 30 August issue of Science here.

[Image courtesy of Christoph Keplinger and Jeong-Yun Sun, Whitesides and Suo Research Groups, Harvard University. Click the image for more information.]

© 2013 American Association for the Advancement of Science. All Rights Reserved.

More Flexibility With Carbon-Fiber Composites

Researchers have come up with a way to assemble carbon-fiber composite materials that’s cheaper and more flexible than traditional methods. Such composites are generally light-weight and high-strength, and they are used, for example, to build airframes. Kenneth Cheung and colleagues now show that these materials can be made stronger and more flexible by constructing them piece-by-piece.

Read more about this research from the 15 August issue of Science Express here.

[Image © CC-BY-NC-SA Kenneth C. Cheung. Click the image for more information.]

© 2013 American Association for the Advancement of Science. All Rights Reserved.

3-D Printed Materials Resemble Biological Tissues

A three-dimensional material could one day mimic the behavior of cells in tissues, new research shows. The tissue-like materials developed by Gabriel Villar and colleagues have the consistency of soft rubber, and physically resemble brain and fat tissues. The researchers aim to eventually build materials that can be used for medical applications like controlled drug release. In the long-term, they hope to integrate the technology with living tissues to potentially repair or augment failing organs.

Read more about this research from the 5 April issue of Science here.

[Video courtesy of Gabriel Villar, Alexander D. Graham and Hagan Bayley (University of Oxford). Click here for caption information.]

© 2013 American Association for the Advancement of Science. All Rights Reserved.

Polymers Powered by Water

Researchers have created specialized polymer films that respond to moisture in their environments and produce electrical energy that can be stored by small generators. This narrated video explains how the polymer films — combinations of rigid polypyrrole matrices and dynamic polyol-borate networks — work as actuators, or artificial muscles, to generate small amounts of electricity.

Read more about this research from the 11 January issue of Science here.

[Video courtesy of Dr. Mingming Ma]

© 2013 American Association for the Advancement of Science. All Rights Reserved.

"DNA Bricks" Act as Tiny Legos

Building upon the fields of DNA origami and DNA tiles, researchers have come up with a way to coax single-stranded DNA into a wide variety of shapes for possible applications in biophysics, medicine and nano-electronics. These “DNA bricks,” reported by Yonggang Ke and colleagues, assemble themselves into complex, three-dimensional nano-structures, and they might be ideal for hosting and delivering certain proteins or nanoparticles.

Read more about this research from the 30 November issue of Science here.

[Image courtesy of Yonggang Ke; click the image for more information.]

© 2012 American Association for the Advancement of Science. All Rights Reserved.

Spinning a Yarn: Twisting Motion Makes Artificial Muscles

Yarns made of carbon nanotubes and infused with wax can form the basis for artificial “muscles” that are capable of moving larger objects with great power and speed, researchers report. These types of materials are actuators, which can convert heat, light or electricity into a twisting or tensile motion. In this video, Dr. Ray Baughman, University of Texas at Dallas, describes carbon nanotube yarn.

[Video courtesy of University of Texas at Dallas]

Read more about this research from the 15 November issue of Science here.

© 2012 American Association for the Advancement of Science. All Rights Reserved.

Vanishing Electronic Medical Implants

Scientists have developed a new class of electronics capable of degrading into their environment. Unlike today’s electronic devices, which are designed to last forever, the transient circuits developed by Suk-Won Hwang at the University of Illinois at Urbana-Champaign and colleagues disappear after a programmed amount of time. The technology could be useful in biomedical implants to help treat surgical infections or stimulate bone growth.

Read more about this research from the 28 September issue of Science here.

[Click here for more information on the video. Video courtesy of the Beckman Institute, University of Illinois]

© 2012 American Association for the Advancement of Science. All Rights Reserved.

© 2014 American Association for the Advancement of Science. All Rights Reserved.