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Active Light-Powered Antibiofilm ZnO Micromotors with Chemically Programmable Properties

机译：具有化学可编程性质的活性光源抗血栓ZnO微量运动器

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摘要

Bacterial biofilms are multicellular communities firmly attached to solid extracellular substrates. They are considered the primary cause of huge economic losses, from medicine due to medical implants' failure to large infrastructure due to enhanced pipe corrosion. Therefore, their eradication is highly desirable. Here, the preparation of ZnO self-propelled micromotors is reported, programming their morphology and motion properties through Ag doping. The ZnO:Ag micromotors actively move upon light irradiation via a self-electrophoretic mechanism, showing excellent light-controlled on/off switching motion. At the same time, the rapid and effective removal of both gram-positive and gram-negative bacteria biofilms from the solid surface is demonstrated, exploiting the well-known antibacterial activity of both Ag and ZnO as well as the enhanced diffusion of the micromotors. The new concept for the low-cost and scalable preparation of chemically programmable Ag-doped ZnO micromotors here illustrated opens a new route toward the formulation of a new class of light-driven semiconducting self-propelled micromotors for environmental applications.
机译：细菌生物膜是多细胞群落牢固地连接到固体细胞外底物。他们被认为是由于管道腐蚀增强，医学植入物由于医疗植入物而因大型基础设施而导致的巨大经济损失的主要原因。因此，他们的根除是非常可取的。这里，报告了通过Ag掺杂编程了ZnO自推进式微量运动器的制备，编程了它们的形态和运动性能。 ZnO：AG微电机通过自电泳机构在光照照射时积极地移动，显示出优异的轻控制开/关开关。同时，对革兰氏阳性和革兰氏阴性细菌生物膜的快速有效去除来自固体表面，利用Ag和ZnO的众所周知的抗菌活性以及微多体的增强扩散。这里的低成本和可扩展制备的新概念在此示出了朝向环境应用的新型轻型驱动半导体自推进式微动机的配方开辟了新的途径。

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  • 来源
    《Advanced Functional Materials》 |2021年第27期|2101178.1-2101178.10|共10页
  • 作者

    Ussia Martina; Urso Mario; Dolezelikova Kristyna; Michalkova Hana; Adam Vojtech; Pumera Martin;

  • 作者单位

    Brno Univ Technol Cent European Inst Technol Future Energy & Innovat Lab Purkynova 656-123 Brno 61200 Czech Republic;

    Brno Univ Technol Cent European Inst Technol Future Energy & Innovat Lab Purkynova 656-123 Brno 61200 Czech Republic;

    Mendel Univ Brno Dept Chem & Biochem Zemedelska 1-1665 Brno 61300 Czech Republic|Univ Vet & Pharmaceut Sci Cent European Inst Technol CEITEC Ctr Zoonot Dis Palackeho 1946-1 Brno 61242 Czech Republic;

    Mendel Univ Brno Dept Chem & Biochem Zemedelska 1-1665 Brno 61300 Czech Republic;

    Mendel Univ Brno Dept Chem & Biochem Zemedelska 1-1665 Brno 61300 Czech Republic|Brno Univ Technol Cent European Inst Technol Purkynova 123 CZ-61200 Brno Czech Republic;

    Brno Univ Technol Cent European Inst Technol Future Energy & Innovat Lab Purkynova 656-123 Brno 61200 Czech Republic|Mendel Univ Brno Ctr Nanorobot & Machine Intelligence Dept Chem & Biochem Zemedelska 1 CZ-61300 Brno Czech Republic|Yonsei Univ Dept Chem & Biomol Engn 50 Yonsei Ro Seoul 03722 South Korea|China Med Univ China Med Univ Hosp Dept Med Res 91 Hsueh Shih Rd Taichung 40402 Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    biofilm eradication; doping; light-powered; robotics; silver; zinc oxide;

    机译：生物膜消除;掺杂;光源;机器人;银;氧化锌;

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