Another nanofish

Nanorobots-fish designed to work inside the human circulatory system have been created

DailyTechInfo based on Gizmodo: World's First 'Nanofish' Coming to Swim Drugs Up Your Bloodstream

The pace of development in the fields of nanotechnology, robotics and medicine allows us to count on the fact that in the not very distant future, tiny "smart" machines, nanorobots, will be born, which will be engaged in the constant maintenance of human health at the proper level, acting inside the human body. A step towards realizing this dream are tiny nanorobots-fish created by specialists from the University of California at San Diego. These robots, operating under the control of an external magnetic field, are already capable of performing a number of fairly complex tasks, including delivering medicines to their destination, performing microsurgical operations and performing other manipulations with individual cells of the body.

The nanorobots developed by Jinxing Li's group, which are 100 times smaller than a grain of sand, consist of tiny gold and nickel segments held together by silver jumpers. To control these robots, an external electromagnet is used, the field of which acts on nickel segments, which is the only magnetic material in the design of this nanorobot. An alternating magnetic field of a certain shape generated by a magnet causes the robot's body to bend, making oscillatory movements resembling the movements of a fish's body in water. And changing the parameters of the magnetic field allows you to control the direction and speed of movement of this tiny "swimmer".

It should be noted that these nanorobots are not the first such development. But most of what was created earlier is more similar in design to tiny submarines, not fish. Such nanorobots traditionally have a "tail" twisted in the form of a corkscrew, which acts as a submarine screw and the idea of which was borrowed from some types of microorganisms.

Scientists from the University of California conducted tests of the nanorobots they created, a comparative analysis of the characteristics of their movement and capabilities with similar parameters of other similar nanorobots. Despite the rather high complexity of their manufacture, California nanorobots have demonstrated greater maneuverability, greater speed of movement and higher efficiency than their closest competitors.

And now Californian researchers are developing a design of a new nanorobot made of biodegradable materials that will dissolve inside the human body without a trace and without harming it after the nanorobot completes the task assigned to it.

Portal "Eternal youth" http://vechnayamolodost.ru  19.09.2016