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Impact of Nanoplastic Particles on Intestinal Epithelium Health Using a Vascularized Gut-on-aChip Model
Summary
Researchers developed a vascularized gut-on-a-chip model to assess how nanoplastic particles affect the intestinal barrier, focusing on bioaccumulation, translocation across epithelial and endothelial layers, and disruption of mucus and immune interfaces under physiologically relevant conditions.
Nanoplastics (NPLs), small plastic particles formed from the environmental breakdown of larger plastics, are known bioavailable contaminants. Their size enables them to cross biological barriers, interact with epithelial and immune cells, and transport toxic additives and biofilm-forming microbes. These properties highlight the urgent need to understand their effects on human health, particularly in the gastrointestinal tract (GI), a primary site of exposure through ingestion. Despite mounting evidence linking NPLs to health issues like immune response and inflammation, their impact on gut health using physiologically relevant models remains poorly characterised. The objective of the project is to develop a novel proof-of-principle gut-on-chip model to evaluate the impact and toxicity of NPLs on gut health, focusing on bioaccumulation, translocation, and barrier integrity at the endothelium, epithelium, mucus and immune interface.