Variable Non-Gaussian Transport of Nanoplastic on Supported Lipid Bilayers in Saline Conditions.
J Phys Chem Lett
; 15(20): 5428-5435, 2024 May 23.
Article
em En
| MEDLINE
| ID: mdl-38743920
ABSTRACT
Nanoplastic-lipid interaction is vital to understanding the nanoscale mechanism of plastic adsorption and aggregation on a lipid membrane surface. However, a single-particle mechanistic picture of the nanoplastic transport process on a lipid surface remains unclear. Here, we report a salt-dependent non-Gaussian transport mechanism of polystyrene particles on a supported 1-palmitoyl-2-oleoyl-glycero-3-phosphocholine (POPC) lipid bilayer surface. Particle stickiness on the POPC surface increases with salt concentration, where the particles stay longer at the surface and diffuse to shorter distances. Additionally, a non-Gaussian diffusion state dominates the transport process at high salt concentrations. Our current study provides insight into the transport mechanism of polystyrene (PS) particles on supported lipid membranes, which is essential to understanding fundamental questions regarding the adsorption mechanisms of nanoplastics on lipid surfaces.
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1
Base de dados:
MEDLINE
Assunto principal:
Fosfatidilcolinas
/
Poliestirenos
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Cloreto de Sódio
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Bicamadas Lipídicas
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article