Adsorption of active polymers on attractive nanoparticles

Shen, Yi-Fan; Hu, Han-Xian; Luo, Meng-Bo

doi:10.1039/d3sm01380d

Soft Matter

2024

DOI: 10.1039/d3sm01380d

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Adsorption of active polymers on attractive nanoparticles

Yi-Fan Shen,

Han-Xian Hu,

Meng-Bo Luo

Abstract: The critical attraction strength for the adsorption of active polymers on nanoparticles increases with the active force. It becomes more sensitive to the length of the polymers under the action of active force.

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Cited by 2 publications

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Conformation and Dynamics of a Long Active Polymer Chain Confined in a Circular Cavity

Yang,

Zhou,

Zhao

et al. 2024

Chin J Polym Sci

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Conformation and Dynamics of a Long Active Polymer Chain Confined in a Circular Cavity

Yang,

Zhou,

Zhao

et al. 2024

Chin J Polym Sci

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Translocation of two-dimensional active polymers through nanopores using Langevin dynamics simulations

Hu,

Shen,

Luo

2024

The Journal of Chemical Physics

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The translocation of polymers through nanopores is a complex process influenced by various factors. In this study, the translocation behavior of a two-dimensional active polymer chain, comprised of a head active Brownian particle (ABP) and a tail passive polymer chain, through a nanopore is studied using Langevin dynamics simulations. Results show that the effect of the self-propulsion force of the ABP on the translocation differs significantly from the driving force inside the pore for traditional polymer translocations. Specifically, the translocation time τ initially increases with increasing the magnitude fs of the self-propulsion force and then decreases with a further increase in fs. A small fs lowers the potential barrier for the translocation and thus promotes slow translocations, whereas a large fs directly pulls the polymer chain through the nanopore following the scaling relation τ ∝ fs−1. Moreover, two asymptotic scaling relations between τ and polymer length N, τ ∝ Nα, are found, with the exponent α of about 2.5 for small fs or long N and the exponent α of about 1.4 for short active polymers with large fs. We discover that the slow rotation of the ABP accelerates the translocation process.

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Adsorption of active polymers on attractive nanoparticles

Abstract: The critical attraction strength for the adsorption of active polymers on nanoparticles increases with the active force. It becomes more sensitive to the length of the polymers under the action of active force.

Cited by 2 publications

References 46 publications

Conformation and Dynamics of a Long Active Polymer Chain Confined in a Circular Cavity

Conformation and Dynamics of a Long Active Polymer Chain Confined in a Circular Cavity

Translocation of two-dimensional active polymers through nanopores using Langevin dynamics simulations

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