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This paves the way for new chemical decontamination technologies.
Researchers from the Czech Republic, South Korea and Taiwan, led by Martin Pumera of the Center for Advanced Functional Nanorobots at the University of Chemistry and Technology in Prague, published their findings in the journal Nature Communications, published by temperature-sensitive polymeric material (PTBC) on the other hand from iron oxide particles that make robots magnetic. Thus, they are able to act as tiny "hands" and "pick up" chemical pollution from water.
Heavy metals and various pesticides in agriculture that end up in water are a serious problem for the environment and health. Experiments have shown that these nanorobots are able to remove from the water both the metal arsenic and the common herbicide atrazine.
The ability to decompose depends on the temperature of the water: At 5 degrees Celsius the nanorobots disperse, but at 25 degrees they all come together and can trap the pollutants. After doing their job, the nanorobots can then move away from the water using magnets. They can then be reused.
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