Nanorobots will be engaged in cleaning soil and water from the smallest contamination

Nanorobots are tiny synthetic moving particles made of polymer or silica.

They consist of two particles forming a sphere,Each of the halves has different chemical properties: one hemisphere promotes the occurrence of chemical reactions, thanks to which a chemical field appears, through which the particle receives energy from the environment and uses it to move. Such nanorobots, scientists believe, could be used to clean up contaminated soil, improve water filtration, or even deliver drugs to areas of the body, such as dense tissue.

Daniel Schwartz, senior author of the article, stated thatNanorobots caught the attention of the theoretical physicist community about 20 years ago. However, it was not possible to use them to their full capacity, in part because it was previously difficult to observe and simulate their movement in the respective environments.

The authors named their nanorobots from twohalves of spheres with Janus particles. Next, they tested the particles in an artificial maze, which they completed 20 times faster than Brownian particles. The Janus particles strategically moved along the walls of the cavity in search of holes, allowing them to find exits very quickly. 

A particle size of about 250 nanometers is a littleare wider than a human hair, so they can move and penetrate into microscopic spaces such as the tissues of the human body to transport goods and deliver medicines, or, for example, move through soil to remove contaminants.

The next step in this direction of research is to understand how nanorobots behave in groups in closed environments or in combination with passive particles.

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