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首页> 外文期刊>Journal of Applied Polymer Science >Plasma-enhanced deposition of silver nanoparticles onto polymer and metal surfaces for the generation of antimicrobial characteristics
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Plasma-enhanced deposition of silver nanoparticles onto polymer and metal surfaces for the generation of antimicrobial characteristics

机译：银纳米粒子在聚合物和金属表面上的等离子体增强沉积，以产生抗菌特性

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Silver nanoparticle thin layers were deposited onto formaldehyde-radio frequency (RF)-plasma-functionalized medical- and food-grade silicone rubber, stainless steel, and paper surfaces. The silver deposition was carried out under ex situ plasma conditions using the Tollen's reaction. Results from survey and high-resolution electron spectroscopy for chemical analysis, scanning electron microscopy (SEM), atomic force microscopy (AFM), and energy dispersive X-ray spectroscopy investigations confirmed the presence of thin silver layers on the plasma-exposed and subsequently modified substrate surfaces. In addition, SEM and AFM demonstrated the nanoparticle-based morphology of the deposited layers. Our results showed that thin macromolecular layers bearing aldehyde functionalities can be deposited onto silicone rubber, stainless steel, and paper surfaces. The bactericidal properties of the silver-coated surfaces were demonstrated by exposing them to Listeria monocytogenes. No viable bacteria were detected after 12 to 18 h on silver-coated silicone rubber surfaces. (C) 2004 Wiley Periodicals, Inc.
机译：银纳米颗粒薄层沉积在甲醛-射频（RF）-等离子功能化的医用和食品级硅橡胶，不锈钢和纸张表面上。使用Tollen反应在非原位等离子体条件下进行银沉积。来自用于化学分析，扫描电子显微镜（SEM），原子力显微镜（AFM）和能量色散X射线光谱学的调查和高分辨率电子光谱研究的结果证实，经过等离子曝光后经过修饰的薄银层存在基材表面。另外，SEM和AFM证明了沉积层的基于纳米颗粒的形态。我们的结果表明，带有醛官能团的大分子薄层可以沉积在硅橡胶，不锈钢和纸张表面上。通过将银涂层表面暴露于单核细胞增生李斯特菌中来证明其杀菌性能。 12至18小时后，在涂银的硅橡胶表面上未检测到活菌。 （C）2004年Wiley Periodicals，Inc.

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