According to a recent report on the BBC website, scientists at the University of Bristol in the United Kingdom have developed artificial muscles. Scientists are expected to design a set of smart clothes that can change colors based on this, and ultimately make people like squid. Like disguise. The relevant research was published in the journal "Biological Inspiration and Bionics," founded by the British Physical Society.

The latest technology belongs to the field of soft robotics, where organic chemistry, soft material science and robotics are organically integrated. Researcher Jonathan Rost said: “Traditional robots are very rigid and inflexible. Therefore, we hope to combine natural simulation techniques—bionics and robotics—to develop a soft structure that is very good at natural manufacturing. And simulated the characteristics of biological organisms and manufactured these artificial muscles."

In order to develop these artificial muscles, scientists studied the ways and techniques of changing the color of certain animals.

Animals change their colors when they avoid danger and are affected by changes in mood, stress, and external temperature, or when they contact their spouse. Invertebrate molluscs, including squid, squid, and octopus, change their body color by letting the tiny muscles in their skin stretch out of the black sac. The small sacs are located in the animal's skin cells. When a cell is ready to change color, the brain sends a signal to the muscles and the muscles that receive the signal contract. This will expand the sac and create a light effect that will make the animal look like it has changed color. However, the zebrafish is not the same. It mainly changes the body color by spraying melanin liquid from under the skin to the skin surface.

To simulate these natural mechanisms, the research team used "smart" electroactive polymer materials that were connected to the circuit. These polymer materials shrink when voltage is applied to them, and they return to their original shape when a short circuit occurs.

Roth pointed out: "The artificial muscles we make can replicate the activities of natural muscles and have a very strong visual effect. These materials and this method can be used to create smart color-changing skin or flexible devices (liquids in these devices). It can be pumped from one place to another, and is expected to create many new technologies based on this, creating smart clothing that can change colors to disguise and 'smart' skin that makes people feel cool in winter and cool in summer."

For hundreds of years, people have been seeking answers to the problem from the natural world. As a result, a discipline called bionics has been derived. The concept of "bionics" was first proposed by the director of the Australian Institute of Bionics and the natural history writer Janie Ban Yas in 1998. Yas said: “Learning in nature is very important. After all, in the 3.8 billion years of long evolutionary process, many ideas have been naturally nurtured.” In 2005, Yass founded the world's first bionics research institute whose main purpose was to help Business organizations develop designs that derive their inspiration from nature. (Liu Xia)

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