The algae-derived mixture can also safely break down after coming into contact with a molecular relative of caffeine.
, the team first hydrated a seaweed-derived polymer known as alginate. Meanwhile, the researchers genetically engineered a waterborne, photosynthetic bacteria called cyanobacteria to produce laccase, an enzyme capable of neutralizing organic pollutants like antibiotics, dyes, pharmaceutical drugs, and BPAs.
However, that still leaves the alginate-cyanobacteria mixture within the water. Replacing one foreign pollutant with foreign, synthesized bacteria doesn’t necessarily solve the larger problem of contamination. To solve this, the UC San Diego team further engineered their version of cyanobacteria to adversely respond to theophylline, a molecule similar to caffeine found in many teas and chocolates.
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