Kredl Jana, Kolb Juergen F, Schnabel Uta, Polak Martin, Weltmann Klaus-Dieter, Fricke Katja
Leibniz Institute for Plasma Science and Technology (INP Greifswald e.V.), Felix-Hausdorff-Str. 2, Greifswald 17489, Germany.
Materials (Basel). 2016 Apr 7;9(4):274. doi: 10.3390/ma9040274.
Inanimate surfaces serve as a permanent reservoir for infectious microorganisms, which is a growing problem in areas in everyday life. Coating of surfaces with inorganic antimicrobials, such as copper, can contribute to reduce the adherence and growth of microorganisms. The use of a DC operated air plasma jet for the deposition of copper thin films on acrylonitrile butadiene styrene (ABS) substrates is reported. ABS is a widespread material used in consumer applications, including hospitals. The influence of gas flow rate and input current on thin film characteristics and its bactericidal effect have been studied. Results from X-ray photoelectron spectroscopy (XPS) and atomic force microscopy confirmed the presence of thin copper layers on plasma-exposed ABS and the formation of copper particles with a size in the range from 20 to 100 nm, respectively. The bactericidal properties of the copper-coated surfaces were tested against . A reduction in growth by 93% compared with the attachment of bacteria on untreated samples was observed for coverage of the surface with 7 at. % copper.
无生命表面是传染性微生物的永久储存库，这在日常生活区域中是一个日益严重的问题。用无机抗菌剂（如铜）涂覆表面有助于减少微生物的附着和生长。本文报道了使用直流操作的空气等离子体射流在丙烯腈-丁二烯-苯乙烯（ABS）基材上沉积铜薄膜。ABS是一种广泛应用于消费领域（包括医院）的材料。研究了气体流速和输入电流对薄膜特性及其杀菌效果的影响。X射线光电子能谱（XPS）和原子力显微镜的结果证实，在等离子体处理过的ABS上存在薄铜层，并且分别形成了尺寸在20至100nm范围内的铜颗粒。测试了铜涂层表面对……的杀菌性能。对于表面覆盖率为7原子%的铜，观察到与未处理样品上细菌附着相比，生长减少了93%。
