Every year, more than 20 million kilograms of antibiotics are released into the environment in human and animal waste. Manure from antibiotics-fed farm animals, for example, is often spread on fields. These releases are an important factor in the development of new strains of antibiotic-resistant bacteria. To attack the problem, chemists at Wayne State University have synthesized an antibiotic that chemically self-degrades after several hours of exposure to light.

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