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Structural and electrochemical characterization of Zr–C–N–Ag coatings deposited...

ZrCN coatings with incorporated silver were deposited on 316L stainless steel by dual reactive magnetron sputtering to evaluate the silver influence on the structural properties and corrosion resistance of the films. Samples composition was assessed by electron probe microanalysis. Glow discharge optical emission spectroscopy was used to determine the distribution of silver in the films. Structural characteriza...

Influence of albumin on the tribological behavior of Ag-Ti (C, N) thin films fo...

With the increase of elderly population and the health problems arising nowadays, such as cancer, knee and hip joint prostheses are widely used worldwide. It is estimated that 20% of hip replacement surgeries simply fail after 5 years, due to wear loosening, instability and infection. In this paper it is reported the study of advanced materials with the ability to overcome some of these drawbacks. The developme...

Influence of surface features on the adhesion of Staphylococcus epidermidis to ...

Staphylococcus epidermidis has emerged as one of the major nosocomial pathogens associated with infections of implanted medical devices. The initial adhesion of these organisms to the surface of biomaterials is assumed to be an important stage in their colonization. The main objective of this work is to assess the influence of surface features on the adhesion of S. epidermidis to Ag–TiCN coatings deposited by d...

Influence of medium composition on the characteristics of a denitrifying biofil...

The influence of the ratio carbon/nitrogen and phosphorus concentration on the performance of a biofilm fluidised bed reactor used for denitrification and on the properties of the biofilm was studied. Although the removal efficiencies of C and N reached steady-state values, the thickness of the biofilm steadily increased. The dry density of the biofilm did not seem to be dependent on the loading conditions, alt...

Characteristics of a denitrifying biofilms in a fluidized bed reactor

Influence of the C/N/P ratio on nitrate removal in a denitrifying biofilm fluid...

IV Iberian Congress on Biotechnology; I Ibero-American Meeting on Biotechnology

Effect of hydrodynamic conditions and bulk substrate concentration on biofilm e...

Water and wastewater biofilm reactors work under quite different substrate concentrations and hydrodynamic conditions. It is important to analyse how these factors can affect the activity of biofilms. The work reported here presents results obtained with biofilms formed by Pseudomonas fluorescens suspensions carried out at different conditions: low and high fluid velocities; low and high bulk substrate concentr...