Self-healing rubber bounces back

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French researchers have developed a groundbreaking self-repairing material, a type of artificial rubber made from vegetable oil and a component of urine. This innovative substance, detailed in the journal Nature, exhibits the unique ability to bond when sliced, as its surfaces maintain a strong chemical attraction to one another. This advancement builds on previous iterations of self-healing materials, showcasing significant progress in material science.
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A material that is able to self-repair even when it is sliced in two has been invented by French researchers.

The as-yet-unnamed material - a form of artificial rubber - is made from vegetable oil and a component of urine.

The substance, described in the journal Nature, produces surfaces when cut that retain a strong chemical attraction to each other.

http://news.bbc.co.uk/1/hi/sci/tech/7254939.stm
 
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There have been other versions of a similar thing before. I remember reading and seeing something about it a few years back.
 
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