Engineers from the University of Texas at Austin and Pennsylvania State University used to create
A block copolymer is a linear copolymerthe macromolecule of which consists of regularly or statistically alternating homogeneous blocks that differ in composition or structure. As the researchers note, creating muscle structures requires placing the polymer they created in a solvent, and then adding water. One part of this polymer is hydrophilic (attracts to water) and the other part is hydrophobic (tries to avoid contact with water). The hydrophobic parts of the polymer cluster together to protect themselves from water, creating the fiber structure.
In their work, the researchers report that theirfibers are 75% more efficient in terms of converting energy into motion, able to carry 80% more load, and can spin with greater speed and force than today's drives. In addition, the new fiber is able to stretch 9 times without damage.
Engineers believe that the development will findapplication in robotics and medicine. For example, the new fibers could be used in an assistive exoskeleton that helps people with weakened muscles regain movement. In addition, nanostructures can be used to create a "self-closing bandage" after surgery. After the wound has healed, such a bandage will completely dissolve.
You can create an arm out of these fibers fora robot that will respond to stimuli and return energy, instead of using a motor for this. It will be better this way, because with mechanical control, the robot will have a softer touch.
Manish Kumar, professor at the Cockrell School of Engineering and co-author of the study
Cover image: University of Texas at Austin
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