American researchers develop new plastic that decomposes on its own according to a set schedule
Inspired by the structure of natural polymers such as DNA, American university scientists have developed a new type of plastic that is both very strong and can completely decompose at a precise, pre-programmed time.
This plastic has high strength under normal conditions, but its molecular bonds break in a controlled manner when exposed to simple stimuli such as ultraviolet light or certain metal ions.
Researchers have likened this mechanism to a paper folding line, which makes the decomposition fast, precise, and predictable.
The most important feature of this material is the ability to adjust its decomposition time, from a few days, for example, for disposable food containers, to a few years for durable industrial parts.
After decomposition, the remaining liquid is completely non-toxic and can even be recycled in the manufacture of smart drug capsules or temporary medical dressings.
The results of this important research were published yesterday in the prestigious journal Nature Chemistry and have been introduced as a major step towards solving the global plastic pollution crisis.
