Living Plastic: An Eco-Friendly Material Breakthrough
July 17, 5:00 PM
Researchers have created an innovative material called 'living plastic' that could serve as a sustainable substitute for conventional plastics. This cutting-edge substance incorporates spores of the bacterium Bacillus subtilis. When activated by a nutrient solution at 50°C, these spores produce enzymes that break down polycaprolactone without generating microplastics. In tests, the material fully decomposed within six days.
Co-author Zhuojun Dai commented:
'The team asked whether it was possible to embed decomposition capability directly into the material's lifecycle.'
To achieve this, the bacteria were genetically engineered to generate two enzymes that work in sequence. The first enzyme cleaves polymer chains into shorter fragments, while the second reduces those fragments into individual molecules.
The study confirmed that the new material retains the same strength as standard plastic. Additionally, the team produced a flexible electrode designed for wearable use, which also proved biodegradable. The device functioned normally and fully decomposed in under two weeks after activation.
Future Applications of Living Plastic
Polycaprolactone, the polymer used in the experiment, is already employed in 3D printing and surgical sutures. The team plans to adapt the technology for activation in water and for other types of plastic, opening up new possibilities for environmentally friendly materials.
The development of 'living plastic' could have a major impact on the environment, given that traditional plastic products often cause pollution and generate microplastics. This new material not only has the potential to replace ordinary plastic but could also significantly reduce ecological harm through its biodegradability. It offers promising opportunities across various fields—from medicine to manufacturing—supporting the creation of more sustainable and eco-conscious solutions.
As researchers continue to explore innovative solutions for plastic waste, another significant advancement has emerged with the production of pure hydrogen from unsorted plastic. This breakthrough not only highlights the versatility of plastic as a resource but also underscores the urgent need for sustainable alternatives, such as the newly developed living plastic, which could transform our approach to environmental challenges.