滑滑润滑剂注入二氧化硅纳米颗粒膜处理,用于防生物污垢应用。

IF 3.1 4区 医学 Q2 BIOPHYSICS
Yuen Yee Li Sip, Annabel Jacobs, Alejandra Morales, Mengdi Sun, Luke B Roberson, Mary E Hummerick, Herve Roy, Pieter Kik, Lei Zhai
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引用次数: 0

摘要

配水系统中的微生物生物膜堆积会对人类健康和管道材料的完整性构成风险。由于与必要的更换部件和医疗资源隔离,这种影响在空间站和宇航员中更具破坏性。因此,需要在管道的内部区域涂覆涂层,以最大限度地减少生物膜的粘附和生长。注入润滑剂的表面是抗生物污垢应用中一种非常有趣的材料,在这种材料中,它们的光滑特性促进了对许多液体的排斥,从而防止细菌粘附。有纹理和多孔的薄膜是注入和含有润滑剂的合适的候选基材。然而,利用纳米颗粒薄膜作为润滑剂注入的基底材料的研究很少。纳米颗粒膜在结构内具有高孔隙率,这可以促进更大的润滑剂注入和保留。作为薄膜结构的实现有助于减少材料消耗和成本。在我们的研究中,我们使用了一种经过充分研究的纳米多孔薄膜,该薄膜通过聚阳离子和胶体二氧化硅的逐层组装,然后煅烧以获得更大的稳定性。该膜被进一步官能化以促进氟化基团并提高与氟化润滑剂的亲和力。对原始纳米多孔膜进行了表征,以确定其形态、厚度、润湿性和孔隙率。然后测试注入润滑剂的膜在各种洗涤条件下的润滑剂层稳定性,以及由于其光滑特性而抗细菌生物膜粘附的性能。总的来说,改性的二氧化硅纳米颗粒薄膜显示出作为润滑剂注入表面制造的基底基底的潜力,该基底对周围的水性溶剂具有排斥作用,并且作为抗生物污垢涂层显示出低生物膜覆盖率和集落形成单位值。进一步优化以提高润滑剂保留率或结合二级功能可以帮助开发更好的用于生物膜缓解的涂层。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Slippery lubricant-infused silica nanoparticulate film processing for anti-biofouling applications.

Microbial biofilm build-up in water distribution systems can pose a risk to human health and pipe material integrity. The impact is more devastating in space stations and to astronauts due to the isolation from necessary replacement parts and medical resources. As a result, there is a need for coatings to be implemented onto the inner region of the pipe to minimize the adherence and growth of biofilms. Lubricant-infused surfaces has been one such interesting material for anti-biofouling applications in which their slippery property promotes repellence to many liquids and thus prevents bacterial adherence. Textured and porous films are suitable substrate candidates to infuse and contain the lubricant. However, there is little investigation in utilizing a nanoparticulate thin film as the substrate material for lubricant infusion. A nanoparticulate film has high porosity within the structure which can promote greater lubricant infusion and retention. The implementation as a thin film structure aids to reduce material consumption and cost. In our study, we utilized a well-studied nanoporous thin film fabricated via layer-by-layer assembly of polycations and colloid silica and then calcination for greater stability. The film was further functionalized to promote fluorinated groups and improve affinity with a fluorinated lubricant. The pristine nanoporous film was characterized to determine its morphology, thickness, wettability, and porosity. The lubricant-infused film was then tested for its lubricant layer stability upon various washing conditions and its performance against bacterial biofilm adherence as a result of its slippery property. Overall, the modified silica nanoparticulate thin film demonstrated potential as a base substrate for lubricant-infused surface fabrication that repelled against ambient aqueous solvents and as an anti-biofouling coating that demonstrated low biofilm coverage and colony forming unit values. Further optimization to improve lubricant retention or incorporation of a secondary function can aid in developing better coatings for biofilm mitigation.

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来源期刊
Journal of Applied Biomaterials & Functional Materials
Journal of Applied Biomaterials & Functional Materials BIOPHYSICS-ENGINEERING, BIOMEDICAL
CiteScore
4.40
自引率
4.00%
发文量
36
审稿时长
>12 weeks
期刊介绍: The Journal of Applied Biomaterials & Functional Materials (JABFM) is an open access, peer-reviewed, international journal considering the publication of original contributions, reviews and editorials dealing with clinical and laboratory investigations in the fast growing field of biomaterial sciences and functional materials. The areas covered by the journal will include: • Biomaterials / Materials for biomedical applications • Functional materials • Hybrid and composite materials • Soft materials • Hydrogels • Nanomaterials • Gene delivery • Nonodevices • Metamaterials • Active coatings • Surface functionalization • Tissue engineering • Cell delivery/cell encapsulation systems • 3D printing materials • Material characterization • Biomechanics
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