Scientists have developed a self-digesting plastic that could not only help reduce plastic pollution, but also strengthen the plastic itself.

An international research team has created a new version of polyurethane, doped with bacterial spores. 

Spores from the plastic-degrading bacteria Bacillus subtilis, genetically engineered to withstand the high temperatures involved in plastic production, are intended to remain dormant throughout the useful life of the product. 

Upon exposure to specific nutrients found in compost environments, these spores activate, initiating a rapid decomposition process.

The latest study on the plastic shows that this approach does not just assist in breaking down the material post-use, but also enhances its strength. Tests revealed that spore incorporation led to a 37 per cent increase in toughness compared to traditional thermoplastic polyurethanes.

This balance of biodegradability and mechanical strength positions the material as a promising alternative, potentially changing how polyurethanes are viewed in terms of environmental impact.

Additionally, the technology aligns with existing industrial processes, ensuring that it can be scaled up efficiently. 

The researchers believe that this biodegradable polyurethane could pave the way for more sustainable practices in the plastic industry without compromising the quality or utility of the products.