Modulating Surface Energy and Surface Roughness for Inhibiting Microbial Growth

Surface Modification of Pure Zinc by Acid Etching: Accelerating the Corrosion Rate and Enhancing Biocompatibility and Antibacterial Characteristics

“…The rough surface morphology and the increased surface area of the Zn1m may induce a faster Zn 2+ release contributing to antibacterial efficiency . Moreover, a roughened surface of Zn1m with lower surface energy might decrease the interface contact area and adhesion force with bacteria resulting in a reduction in bacterial adhesion . The antibacterial activity effects of acid-etched Zn1m was further identified by the XTT, crystal violet, and live/dead staining assay of the cultured biofilm on the surface of the substrates.…”

“…67 Moreover, a roughened surface of Zn1m with lower surface energy might decrease the interface contact area and adhesion force with bacteria resulting in a reduction in bacterial adhesion. 68 The antibacterial activity effects of acid-etched Zn1m was further identified by the XTT, crystal violet, and live/dead staining assay of the cultured biofilm on the surface of the substrates. Biofilm metabolic activity was significantly lower on the Zn0m and Zn1m surfaces than on Ti surfaces (Figure 10c).…”

Aspect ratio of nano/microstructures determines Staphylococcus aureus adhesion on PET and titanium surfaces

“…It has been described previously that differently scaled topographies can reduce the biofilm formation and the adhesion of pathogens (Scardino et al, 2009;Scardino and de Nys, 2011;Bixler and Bhushan, 2012;Crawford et al, 2012;Jafar Hasan and Chatterjee, 2015;Nir and Reches, 2016;Elbourne et al, 2017). In this context, Majhi et al demonstrated that laser patterning of surfaces represents an appropriate technology to reduce bacterial adhesion, since it affects the surface morphology as well as its wettability (Majhi and Mishra, 2020). Majhi et al showed that the capability of S. aureus for the binding on a surface is dependent on the surface wettability and the average surface roughness which was tested with nanopillars with a size of 0.8 µm to 1.3 µm (Majhi and Mishra, 2020).…”

“…In this context, Majhi et al demonstrated that laser patterning of surfaces represents an appropriate technology to reduce bacterial adhesion, since it affects the surface morphology as well as its wettability (Majhi and Mishra, 2020). Majhi et al showed that the capability of S. aureus for the binding on a surface is dependent on the surface wettability and the average surface roughness which was tested with nanopillars with a size of 0.8 µm to 1.3 µm (Majhi and Mishra, 2020). According to Lam et al sharp nanostructures are able to break the cell wall of pathogens and can kill them immediately (Lam et al, 2016).…”

Laser Surface Texturing For Antiviral Surfaces?

“…Antifouling characteristics are commonly influenced by surface chemistry, wettability, topography, and roughness. Besides, bacteria cell characteristics such as shape, size, hydrophobicity, gram stain of the cell, and extracellular polymeric substance (EPS) production influence the adhesion behavior of the bacteria with the contact surface [5,16].…”