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<p>This article presents, to the best of our knowledge, a novel simulation model for bacterial adhesion on rough surfaces, combining the SPH method with the LJ potential. A <i>Staphylococcus aureus</i>-like spherical bacterial cell is modeled as a rigid body in a fluid simulated with PySPH. The rough surface is characterized by shear force microscopy (ShFM), with bacteria–surface interactions described by the LJ potential. Surface–fluid interactions are modeled using WCSPH, and bacterial–fluid coupling is addressed through SPH, overcoming limitations of previous models. This model offers a powerful tool for studying bacterial adhesion and surface interactions in fluid environments.</p>

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Simulation of bacterial adhesion on a rough surface based on smoothed particle hydrodynamics (SPH)

  • 期刊论文

  • 发表日期：

    2025年3月12日

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  • Rita de Cássia Jerônimo da Silva,
  • Silvio de Barros Melo,
  • Daniel de Souza Queiroga,
  • Vitor Mergulhão Torres da Paz,
  • Thiago de Aguiar Leal Domingues

摘要

This article presents, to the best of our knowledge, a novel simulation model for bacterial adhesion on rough surfaces, combining the SPH method with the LJ potential. A Staphylococcus aureus-like spherical bacterial cell is modeled as a rigid body in a fluid simulated with PySPH. The rough surface is characterized by shear force microscopy (ShFM), with bacteria–surface interactions described by the LJ potential. Surface–fluid interactions are modeled using WCSPH, and bacterial–fluid coupling is addressed through SPH, overcoming limitations of previous models. This model offers a powerful tool for studying bacterial adhesion and surface interactions in fluid environments.