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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >A new anti-biofilm strategy of enabling arbitrary surfaces of materials and devices with robust bacterial anti-adhesion via a spraying modified microsphere method
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A new anti-biofilm strategy of enabling arbitrary surfaces of materials and devices with robust bacterial anti-adhesion via a spraying modified microsphere method

机译：一种新的抗生物膜策略，通过喷涂改性微球法使具有鲁棒的细菌抗粘附性的材料和器件的任意表面和装置

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摘要

Despite adopting diverse strategies and fabrication methods to prevent biofilm formation, the existing sophisticated fabrication methods for sole wettable or smart surfaces and their unsatisfactory anti-adhesive durability need to be improved for their practical applications. In this study, a new anti-biofilm strategy via spraying bacterially-anti-adhesive modified polystyrene (MPS)/Ag microspheres was proposed to construct two kinds of bacterially-anti-adhesive surfaces with tunable wettability to meet different requirements in various fields. These surfaces could be constructed on arbitrary surfaces of materials and devices by this facile spray-coating method. A hydrophilic-type surface was demonstrated to possess superior antibacterial and bacterially-anti-adhesive capabilities. More importantly, its bacterially-anti-adhesive mechanism was first illustrated by molecular dynamics (MD) simulations of the resisting effect of the hydrated layer. These surfaces could be easily converted to hydrophobic-type surfaces with significantly enhanced bacterially-anti-adhesive properties. It is worth noting that underwater oleophobicity was first deemed to be a vital factor for bacterial anti-adhesion due to the lotus-like repelling effect, in addition to the outstanding self-cleaning properties and repellency of surfaces for various bacterial media. The contact/release-killing synergistic antibacterial model and resisting and repelling bacterially-anti-adhesive model were, thus, substantially elucidated. Importantly, these surfaces demonstrated an outstanding durable and robust resistance to mechanical damage and chemical attack. This fabrication method is expected to be flexibly applied to arbitrary substrates in practical fields.
机译：尽管采用各种策略和制造方法来防止生物膜形成，但唯一可润湿或智能表面的现有精密制造方法及其不令人满意的防粘连耐久性需要改善其实际应用。在该研究中，提出了一种通过喷涂细菌 - 抗粘合改性聚苯乙烯（MPS）/ Ag微球的新的抗生物膜策略，以构建两种细菌 - 抗粘合表面，可调节润湿性，以满足各个领域的不同要求。这些表面可以通过这种容易的喷涂方法在材料和装置的任意表面上构造。对亲水型表面进行了证明具有优异的抗菌和细菌 - 抗粘合能力。更重要的是，首先通过水合层的抗蚀作用的分子动力学（MD）模拟来说明其细菌抗粘合机构。这些表面可以容易地转化为具有显着增强的细菌 - 抗粘性特性的疏水式表面。值得注意的是，由于各种细菌介质的表面的出色的自清洁性能和表面的泄漏，因此首先被认为是细菌抗粘连的重要因素。因此，基本上阐明了接触/剥离杀灭协同抗菌模型和抗性和排斥的细菌抗粘合模型。重要的是，这些表面展示了对机械损伤和化学侵蚀的出色和稳健的抵抗力。该制造方法预计将灵活地应用于实际领域的任意基板。

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    Hu Jietao; Lin Jing; Zhang Yayu; Lin Zekai; Qiao Zhiwei; Liu Zili; Yang Wei; Liu Xiaoguo; Dong Mengyao; Guo Zhanhu;

  • 作者单位

    Guangzhou Univ Sch Chem &

    Chem Engn Guangzhou 510006 Peoples R China;

    Guangzhou Univ Sch Chem &

    Chem Engn Guangzhou 510006 Peoples R China;

    Guangzhou Univ Sch Chem &

    Chem Engn Guangzhou 510006 Peoples R China;

    Guangzhou Univ Sch Chem &

    Chem Engn Guangzhou 510006 Peoples R China;

    South China Univ Technol Sch Chem &

    Chem Engn Guangzhou 510640 Peoples R China;

    Guangzhou Univ Sch Chem &

    Chem Engn Guangzhou 510006 Peoples R China;

    Guangzhou Univ Sch Chem &

    Chem Engn Guangzhou 510006 Peoples R China;

    Guangzhou Univ Sch Chem &

    Chem Engn Guangzhou 510006 Peoples R China;

    Univ Tennessee Dept Chem &

    Biomol Engn ICL Knoxville TN 37996 USA;

    Univ Tennessee Dept Chem &

    Biomol Engn ICL Knoxville TN 37996 USA;

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  • 正文语种 eng
  • 中图分类 工程材料学;
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