Scientists weaponize bacteria to fight microplastics in the environment

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Microplastic pollution has been found in a diversity of ecosystems.

Researchers from the Hong Kong Polytechnic University have come up with a technique to trap and remove microplastics from the environment.

They engineered a bacterial biofilm, a sticky substance created by microorganisms, from a bacteria called Pseudomonas aeruginosa.

On Wednesday, researchers demonstrated how the biofilm can be used to form sticky microbe nets that were placed in microplastic-polluted water in a lab.

Researchers have developed a new technique to trap and recover microplastics from the environment by using microbes.

Microplastics are tiny plastic particles less than 5 millimeters long that originate from a variety of sources, including debris from large plastic items that have been broken down over time into smaller pieces.

Microplastic pollution has been found in a diversity of ecosystems, including in the deepest parts of the ocean, and are a threat to marine animals and birds that mistake microplastics for food and ingest them. The plastic particles can absorb harmful chemicals like pesticides, heavy metals, and drug residues at high concentrations.

On Wednesday, researchers from the Hong Kong Polytechnic University presented the technique at the Microbiology Society’s annual conference.

“They [microplastics] are not easily bio-degradable, where they retain in the ecosystems for prolonged durations. The result in the uptake of microplastics by organisms, leading to transfer and retention of microplastics down the food chain,” Yang Liu, researcher at Hong Kong Polytechnic University, said.


Read more (Includes video): https://thehill.com/changing-america/sustainability/environment/550804-scientists-weaponize-bacteria-to-fight