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Front Cover: Can Nanoplastics Alter Cell Membranes? (ChemPhysChem 1/2020)
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This journal cover image illustrates research showing how nanoplastics can insert themselves into lipid bilayer membranes — the basic structural component of all cells — by forming polymer chains that thread through the hydrophobic membrane core. If nanoplastics can penetrate cell membranes, this has significant implications for their ability to disrupt cellular function.
The Front Cover 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. More information can be found in the Communication by O. Hollóczki and S. Gehrke on page 9 in Issue 1, 2020 (DOI: 10.1002/cphc.201900481).
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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.
Molecular Insights into Nanoplastic Incorporation in Lipid Bilayers: Theory, Simulation and Experiment
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Scientists used computer simulations and lab experiments to study how tiny plastic fragments (nanoplastics) get into our cells by slipping into the fatty membranes that surround them. They found that small plastic chains can easily wedge into these membranes, especially if bits of plastic "stick out" from larger nanoparticles like tiny anchors—suggesting this may be a key first step in how plastic pollution actually invades our cells and tissues. This matters because as microplastics and nanoplastics become more common in our environment, understanding exactly how they breach our cells could help scientists figure out what health risks they might pose.
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.
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.
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.
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