Adhesion characteristics ofStaphylococcus aureusbacterial cells on funnel-shaped palladium–cobalt alloy nanostructures

Abstract

The adhesion properties of Staphylococcus aureus on palladiumÀcobalt (PdÀCo) alloy nanostructures with various cross-sectional geometries have been characterised. They include solid core, hollow, c-shaped, and xshaped pillars. These pillars have unique funnel-shaped geometric features on the top surfaces with average included angles between »142 o and »149 o . The success rates of cell attachment on these pillar tops were quantified by using field emission scanning electron microscopy techniques. Results show the Staphylococcus aureus attachment rates of PdÀCo solid core, hollow, and x-shaped pillars are statistically indistinguishable with success rate up to 82%. X-shaped pillars have the lowest attachment rate among the four geometries of 46 § 5%.

The Role of Anatase Nanoparticles on the Mechanical Properties and the Bacterial Adhesion to Acrylonitrile-Butadiene-Styrene Terpolymer

“…These typically include the use of biocides, antibacterial metallic ions [4][5][6] , highly reactive species produced by the photocatalysts 2,7 , and recently the use of superhydrophobic surfaces [8][9][10] . However, it has been reported that the use of biocides may increase the bacterial resistance and cross-resistance to antibiotics 9,11,12 . Also, the use of metallic ions such as Ag + may have potential implications for human health and environment 7,13,14 .…”