American scientists have developed a new type of synthetic muscle that has strong radiation resistance and can be attached to metal. Therefore, it is expected to be used to make better prosthetic and more responsive robots, especially in deep space exploration. The Mars exploration field is very useful, and NASA will send this material to the International Space Station on April 13 to further test its performance.
The material is made by Liroy Rasmussen, a gel-like material called electroactive polymer that has the potential to mimic the movement of human muscles through expansion and contraction, followed by Rasmussen and the US Department of Energy. Scientists at the Princeton Plasma Physics Laboratory (PPPL) have worked together to treat metals such as steel or titanium with plasma, changing the surface of the metal so that it adheres tightly to the metal electrode.
Last summer, PPPL conducted key tests on this synthetic material. In a test, they allowed the synthetic material to receive 300,000 absorbed doses (RADs) of gamma radiation (a healthy human body can withstand 20 times the radiation dose, which is equivalent to the total amount of radiation that people receive between the Earth and Mars. ). The second test took 45 hours, which is equal to the amount of radiation that people get to and from Jupiter.
PPPL engineers Rasmussen and Gentile found that in these high-radiation environments, the strength, electrical activity or durability of the material did not change except for a slight change in color. Moreover, even if the temperature is below 271 degrees Celsius below zero absolute, the material is unharmed. They say that many of the outstanding features make it a material for robots used in deep space travel such as Mars exploration.
Rasmussen said: "Without robots, we can't explore space. The radiation that humans can resist is limited. Therefore, it limits the time people spend in space. If the radiation resistance of robots is greatly improved, it will greatly promote space. The development of exploration."
In an interview with the US Daily Science website, Charles Gentile said: "Given the ground research has made good conclusions, the next step is to study its behavior in deep space. This material will be April 13 At 4:33 pm (US local time), the SpaceFront's 'Falcon 9' heavy rocket was launched from the Cape Canaveral Air Force Base into the International Space Station."
It is reported that this material will be spent on the zero-gravity storage rack of the National Space Laboratory of the International Space Station for 90 days. Every three weeks, astronauts will take photos of them. These materials will return to the ground in July and will be on the same ground. The same materials were compared and tested to further determine their performance.
Rasmussen believes that this synthetic material can stretch and contract well, or can be used as a prosthetic bushing to make the prosthetic more comfortable. She recently received funding from the Children's Hospital of Philadelphia Children's Hospital for the study of this.
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