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Can Nanoplastics Alter Cell Membranes?
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This study investigates whether nanoplastics — plastic particles smaller than 1 micrometer — can interact with and physically alter cell membranes. Researchers found that nanoplastics can disrupt membrane structure, raising concerns about their ability to impair cellular function across a wide range of living organisms.
Abstract The front cover artwork is provided by the junior research group of Dr. Hollóczki at the University of Bonn. The image shows how the plastic waste, after fragmentation into nanoplastics, can affect lipid bilayers by forming a network of polymer chains that stretch throughout the hydrophobic core of the membrane. Read the full text of the Communication at 10.1002/cphc.201900481 .
More Papers Like This
Can Nanoplastics Alter Cell Membranes?
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Researchers used molecular dynamics simulations to show that polyethylene nanoplastics dissolve into the hydrophobic core of lipid bilayers as disentangled polymer chains, inducing structural and dynamic changes that alter vital cell membrane functions and may result in cell death.
Perturbation of Nanoplastics on Biomembranes: Molecular Insights from Neutron Scattering
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Scientists found that tiny plastic particles called nanoplastics can seriously damage cell membranes, which are the protective barriers around our cells. The plastic particles caused membranes to break apart and get thinner, though some natural cell types were more resistant to damage than others. This research helps us understand why the growing amount of plastic pollution in our environment and food could pose health risks to humans.
Interaction of polyethylene nanoplastics with the plasma, endoplasmic reticulum, Golgi apparatus, lysosome and endosome membranes: A molecular dynamics study
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Researchers used computer simulations to study how polyethylene nanoplastics interact with five types of cell membranes in the human body, finding that the plastic particles spontaneously insert themselves into the fatty inner layer of membranes and disrupt normal membrane flexibility. These atomic-level findings help explain how nanoplastics may cause cell damage from the inside.
Cellular responses to micro- and nanoplastics exposure: mechanisms and pathophysiological implications
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This review summarizes existing research on how tiny plastic particles interact with cells in lab and animal studies, finding repeated signs of cell stress, including damage to cell structures and inflammation. Studies also detected plastic material in human blood and tissue samples, but the review states this does not prove the particles cause specific diseases.
Effects of polyethylene microplastics on cell membranes: A combined study of experiments and molecular dynamics simulations
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Researchers combined laboratory experiments with molecular dynamics simulations to study how polyethylene microplastics interact with cell membranes. They found that nanoscale plastic particles can penetrate and disrupt cell membrane structure, causing leakage and potentially leading to cell damage. The study provides a detailed molecular-level understanding of one of the fundamental ways microplastics may harm living cells.
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