Skip to main content
padlock icon - secure page this page is secure

Open Access Microstructure characteristics of copper single layer and copper/titanium multilayer coatings: Nanomechanical properties and bactericidal activities

Download Article:
 Download
(PDF 23,795.3 kb)
 
The bacterial infections associated with metallic surfaces in the clinical environments obviously lead to vulnerable diseases. A protective layer on these surfaces is imperative, so as to reduce the risk of infections due to microbes. From this perspective, the Cu based single layer and multilayer coatings were grown on 316L stainless steel (SS) and titanium substrates by the DC magnetron sputtering technique. These coatings were characterized by the X-ray diffraction (XRD), scanning electron microscope (SEM), field emission scanning electron microscope (FE-SEM), atomic force microscope (AFM) and energy dispersive X-ray analysis (EDX). The evaluation of nanomechanical properties, surface wettability and antimicrobial efficacy of the coatings was also carried out in detail. The antimicrobial properties of the coatings were studied against Gram-positive bacteria (S. aureus) by two methods: disc diffusion method and fluorescence staining. The single layer Cu coating at 200 ?C and [Cu/Ti]25 multilayer coatings on both substrates exhibited enhanced antimicrobial activity. However, the nanomechanical properties were found to be four times higher for the multilayers than for the single layer coatings.

34 References.

No Supplementary Data.
No Article Media
No Metrics

Keywords: ELECTRON MICROSCOPY; MECHANICAL PROPERTIES; MULTILAYERS; SPUTTERING; SURFACE PROPERTIES

Document Type: Research Article

Publication date: December 1, 2014

More about this publication?
  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more