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Deciphering the influence of physicochemical and microbial parameters of the human digestive tract on orally-ingested microplastics using in vitro gut models
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Scientists used lab-made models of the human gut (mimicking stomach acid, gut bacteria, and digestive juices) to study what happens to microplastics after we swallow them. They found that conditions in our digestive system, like acidity and the bacteria living in our gut, can actually change the microplastics themselves, potentially affecting how harmful they are and how easily they might be absorbed into our bodies. This matters because it suggests that what happens inside your gut could influence whether the plastic particles you eat or drink pose more or less risk to your health.
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