Scientists discover that microplastics, in addition to contributing to environmental pollution, can also be hazardous to human health because of promoting antibiotic resistance
Engineers at Rice University have found that styrofoam, a form of polystyrene , broken down into microplastics, contributes to antibiotic resistance., Rice University researchers have concluded “discarded polystyrene broken down into microplastics provides a cozy home not only for microbes and chemical contaminants but also for the free-floating genetic materials that deliver to bacteria the gift of resistance.
The study led by Rice civil and environmental engineer Pedro Alvarez in collaboration with researchers in China and at the University of Houston “also showed chemicals leaching from the plastic as it ages increase the susceptibility of vectors to horizontal gene transfer, through which resistance spreads.”
A significant finding of this study is that as plastics degrade – yet don’t disappear, only turn into microplastics – “they also leach depolymerization chemicals that breach the microbes’ membranes, giving ARGs an opportunity to invade.”
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