Abstract As a result of frequent outbreaks occurring due to poor hygiene and improper sanitation of processing environments, there has been an increasing demand for the development of food-contact surface materials that intrinsically inhibit and reduce likelihood of potential microbial adherence and biofilm formation. Herein, we report the synergistic utilization of surface nanotexturing and chemical modifications with nonpolar functional groups on aluminum surfaces to produce coatings having bacterial super-repellant and mud anti-fouling characteristics. Using these coatings, the attachment of Salmonella Typhimurium LT2 and Listeria innocua as pathogen surrogates was reduced more than 99.0%, compared to the bare aluminum surfaces. In addition, the coating strongly resisted the adhesion of mud, showing a 10-fold reduction in the area of mud adhesion upon submerging in mud solution. Moreover, this method is both versatile and scalable, involving inert and biocompatible building blocks. Overall, this study contributes to the field of food safety through the design and development of novel coatings for achieving improved food safety and hygiene.

中文翻译：

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具有超疏水纳米纹理的铝表面改性，以提高食品安全和卫生

摘要 由于加工环境卫生条件差和卫生不当导致频繁爆发，因此对开发食品接触表面材料的需求不断增加，这些材料从本质上抑制并减少潜在微生物粘附和生物膜形成的可能性。在此，我们报告了铝表面上具有非极性官能团的表面纳米纹理和化学改性的协同利用，以生产具有细菌超级排斥和泥浆防污特性的涂层。使用这些涂层，与裸铝表面相比，作为病原体替代物的鼠伤寒沙门氏菌 LT2 和无害李斯特菌的附着减少了 99.0% 以上。此外，涂层对泥浆的附着有很强的抵抗力，显示在浸入泥浆溶液中后泥浆粘附面积减少了 10 倍。此外，这种方法既通用又可扩展，涉及惰性和生物相容性构建块。总体而言，这项研究通过设计和开发新型涂层来改善食品安全和卫生，从而为食品安全领域做出贡献。