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Scientists Develop 'Self-digesting Plastic' That Could Help Reduce Pollution
Scientists have developed a "self-digesting plastic", which, they say, could help reduce pollution.
15:37 30 April 2024
Researchers have devised a groundbreaking solution to the persistent problem of plastic waste: a self-digesting plastic. Polyurethane, found in various everyday items like phone cases and sneakers, is notoriously difficult to recycle and often ends up in landfills. However, scientists have innovated a solution straight out of science fiction.
They've engineered a plastic infused with spores of plastic-consuming bacteria, effectively creating a material that can decompose on its own. While dormant during the plastic's useful life, these spores activate and begin breaking down the product upon exposure to compost nutrients.
Researcher Han Sol Kim from the University of California San Diego, La Jolla, expressed optimism about mitigating plastic pollution in nature through this innovation. Additionally, the inclusion of spores enhances the plastic's durability, extending its usability.
Co-researcher Jon Pokorski highlighted the process's dual benefit of strengthening materials and facilitating their eco-friendly disposal. Although still in the laboratory phase, the plastic could soon transition into real-world applications with the support of a manufacturer.
The bacteria incorporated into the plastic, Bacillus subtilis, is commonly used in food and as a probiotic. However, it requires genetic modification to withstand the high temperatures involved in plastic production.
While some applaud these biodegradable alternatives, others, like Prof. Steve Fletcher of the University of Portsmouth's Revolution Plastics Institute, emphasize the necessity of reducing plastic usage. He advocates for global agreements to legally limit plastic production rather than relying solely on degradable alternatives.