Study on antibacterial mechanism of copper-bearing austenitic antibacterial stainless steel by atomic force microscopy

  title={Study on antibacterial mechanism of copper-bearing austenitic antibacterial stainless steel by atomic force microscopy},
  author={Li Nan and Yongqian Liu and Man-qi L{\"u} and Ke Yang},
  journal={Journal of Materials Science: Materials in Medicine},
  • L. Nan, Yongqian Liu, Ke Yang
  • Published 5 April 2008
  • Materials Science
  • Journal of Materials Science: Materials in Medicine
A study was made on the antibacterial mechanism of copper-bearing austenitic antibacterial stainless steel by a series of methods such as atomic force microscopy (AFM) observation, force–distance curves and inductively coupled plasma mass spectrometer test. It was observed by AFM that the structure of the outer cell membrane responsible for the cell permeability was substantially changed for the bacteria after contacting with the antibacterial stainless steel, showing that cell walls were… 
Effect of Cu addition on antibacterial property of type 200 stainless steel
Effect of Cu addition (1·45–3·57 wt-%) on the antibacterial property of a type 200 austenitic stainless steel was investigated by ways of direct plate counting, epifluorescence microscope and
Improvement of Antibacterial Properties of Stainless Steel by Combining Plasma Cu and Thermal Diffusion
The duplex treatment consisting of plasma surface alloyed with copper followed by thermal diffusion under the bombardment of glow was carried out on AISI 304 stainless steel in order to improve its
Effect of aging on antibacterial performance of Cu-bearing martensitic stainless steel
Abstract A preliminary study was made on the antibacterial performance and hardness of a type 420 Cu-bearing martensitic stainless steel (420-Cu) by antibacterial test, Vickers hardness measurement
Study of antibacterial performance of a type 304 Cu bearing stainless steel against airborne bacteria in real life environments
Abstract A type 304 Cu bearing stainless steel (304-Cu SS) possesses broad spectrum antibacterial properties in the laboratory environment. However, multiple bacterial species exist in real life
Antibacterial properties and corrosion resistance of AISI 420 stainless steels implanted by silver and copper ions
Silver or copper ions are often chosen as antibacterial agents. But a few reports are concerned with these two antibacterial agents for preparation of antibacterial stainless steel (SS). The
Effect of copper addition on mechanical properties, corrosion resistance and antibacterial property of 316L stainless steel.
  • Tong Xi, M. Shahzad, Ke Yang
  • Materials Science
    Materials science & engineering. C, Materials for biological applications
  • 2017


Study of Antibacterial Composite Cu/SiO2 Thin Coatings
In the present work, composite copper containing silicate thin coatings (Cu/SiO2) were prepared on glass substrates by the sol-gel route. The preparation process included hydrolysis and subsequent
Adhesion Forces between E. c oli Bacteria and Biomaterial Surfaces
It is shown that bacterial adhesion is indeed enhanced by the surface hydrophobicity of the substrate.
Molecular determinants of bacterial adhesion monitored by atomic force microscopy.
Atomic force microscopy can be used to analyze the initial events in bacterial adhesion with unprecedented resolution and a method for determining whether bacteria are attracted or repelled by virtually any biomaterial of interest is developed.
On relations between microscopic and macroscopic physicochemical properties of bacterial cell surfaces: An AFM study on Streptococcus mitis strains
Detailed analysis of the interaction forces between a silicon nitride AFM tip and the surface of nine different oral bacterial strains, Streptococcus mitis, found that microscopic features of force-distance curves could be amalgamated in such a way that relations between microscopic cell surface properties and macroscopiccell surface properties were obtained, even though these relations were not fully understood.
High-Resolution Atomic Force Microscopy Studies of the Escherichia coli Outer Membrane: Structural Basis for Permeability
The structural basis of the outer membrane permeability for the bacterium Escherichia coli is studied by atomic force microscopy (AFM) in conjunction with biochemical treatment and analysis and reveals that the LPS layer provides an effective permeability barrier for the Gram-negative bacteria.