3D-Printed ‘Living Material’ Could Clean Up Contaminated Water, material that could eco-friendly solution to clean pollutants from water
Researchers at the University of California San Diego have developed a new type of material that could offer a sustainable and eco-friendly solution to cleanDubbed an “engineered living material,” it is a 3D-printed structure made of a seaweed-based polymer combined with bacteria that have been genetically engineered to produce an enzyme that transforms various organic pollutants into benign molecules.
. Co-principal investigators of the multidisciplinary team include molecular biology professors Susan Golden and James Golden and nanoengineering professor Shaochen Chen. The mixture was fed into a 3D printer. After testing various 3D-printed geometries for their material, the researchers found that a grid-like structure was optimal for keeping the bacteria alive. The chosen shape has a high surface area to volume ratio, which places most of the cyanobacteria near the material’s surface to access nutrients, gases and light.The increased surface area also makes the material more effective at decontamination.
“The living material can act on the pollutant of interest, then a small molecule can be added afterwards to kill the bacteria,” said Pokorski. “This way, we can alleviate any concerns about having genetically modified bacteria lingering in the environment.”
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