October 3, 2025The Journal of Physical Chemistry B

Diffusion of Submicron Particles on Biological Surfactant Monolayers Governed by the Viscoelasticity and Interfacial Dynamics

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Submicron particles exhibit anomalous diffusion behaviors influenced by viscoelastic properties of surfactant monolayers.
Diffusion of smaller particles is governed by hydrodynamic wave drag, while larger particles show slow-decaying oscillations due to contact-line dynamics.
Langevin dynamics simulations confirm the oscillation period aligns with particle motion along the interface, revealing strong dynamic coupling.
The diffusion characteristics remain non-Gaussian, indicating the structural heterogeneity of the surfactant monolayer affects particle behavior.

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This analysis uncovers how viscoelastic effects and interfacial dynamics influence submicron particle diffusion on biological surfactants, pointing to distinct behavior in smaller and larger particles.

Cite This Study

Liu et al. (2025) studied this question.

synapsesocial.com/papers/68e040f3a99c246f578b3782 https://doi.org/10.1021/acs.jpcb.5c04851

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Diffusion of Submicron Particles on Biological Surfactant Monolayers Governed by the Viscoelasticity and Interfacial Dynamics

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Discussion

Implication

Cite This Study

Diffusion of Submicron Particles on Biological Surfactant Monolayers Governed by the Viscoelasticity and Interfacial Dynamics

Key Points

Discussion

Implication

Cite This Study

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