We drink microplastics every day. They invented a device that will check its quantity
A new, portable device that detects microplastics in everyday items could revolutionise health and environmental protection by delivering fast results.
Scientists at the University of British Columbia have created a novel, portable device that can accurately measure the amount of microplastics released from everyday items like disposable cups and water bottles. This new tool, combined with a special app, allows for quick and easy detection of microplastic particles between 10 and 50 micrometers in size, providing results in just a few minutes.
Microplastics a health hazard
Microplastic pollution in air, water and food is a growing problem that affects both the environment and human health. Studies show that microplastics accumulate in the body, including the brain and other human organs. The process of breaking down larger pieces of plastic into micro- and nanoplastics threatens ecosystems, food security and human health. New technology allows for the rapid detection of these particles, which is crucial for protecting health and nature.
Previous studies have shown that everyday items like lunch boxes, cups and cutlery release microplastics into our environment. The smaller the particles, the more dangerous they are because they can more easily absorb toxins and penetrate biological barriers in the body. Previous methods for detecting such particles required sophisticated equipment and skilled personnel, making the process time-consuming and expensive. So a team of researchers led by Dr. Tianxi Yang set out to simplify and automate these measurements.
Scientists have developed a small, portable device built using 3D printing technology that is fully biodegradable. It contains a digital microscope, a green LED and an excitation filter. Using software based on machine learning algorithms and image capture technology, the device works with a smartphone or tablet to perform quick analyses. The user can easily interpret the results that appear on the screen.
A device that checks for microplastic content
In the research tests, the device was used to analyze disposable polystyrene cups. Each was poured with 50 ml of boiling, distilled water, left to cool for half an hour, and then the results were read. It turned out that the cups were releasing hundreds of millions of microplastic particles, confirming the need to monitor such products.
The device is calibrated to work with polystyrene, but can be easily adapted to measure other types of plastic, such as polyethylene or polypropylene, using machine learning. At just 1.5 cents per test, the technology has the potential to become widely available.
The creators of the tool remind us, however, that to minimize microplastic consumption, it is best to avoid storing and eating food in plastic packaging. Alternatives are dishes made of glass, stainless steel or biodegradable materials.
