Influence of surface topography on bacterial adhesion: A review (Review)

Abstract

Bacterial adhesion and biofilm formation are ubiquitous undesirable phenomena in the marine industry and the medical industry, usually causing economic losses and serious health problems. Numerous efforts have been made to reduce bacterial adhesion and subsequent biofilm formation, most of which are based on the release of toxic biocides from coatings or substrates. In recent years, surface topography has been found to substantially influence the interaction between bacteria and surfaces. This review summarizes previous work dedicated in searching for the relationship between bacterial adhesion and surface topography in the last eight years, as well as the proposed mechanisms by which surface topographic features interact with bacterial cells. Next, various natural and artificial surfaces with bactericidal surface topography along with their bactericidal mechanisms and efficiency are introduced. Finally, the technologies for constructing antibacterial surfaces are briefly summarized.

Fabrication of PVA polymer films with improved antibacterial activity by fine-tuning via organic acids for food packaging applications

“…•− ) radicals, hydroxyl radical (OH •− ), and hydrogen peroxide (H 2 O 2 ), and (2) the deposition of carboxyl groups on the surface of the bacteria (Wu et al 2018). Similar results are observed with LA-cross-linked films, which show good bacteriostatic properties against the pathogenic bacterial species S. aureus could be utilized in medical applications and protective packaging (Avrămescu et al 2018).…”

Antibacterial Coatings for Improving the Performance of Biomaterials

“…Generally, superhydrophobicity is a result of the combination of a hierarchical topography in the micrometer/submicrometer scale, and a chemical composition that enables a low energy surface [36]. This combination is inspired from nature and is known as the Lotus leaf effect in which water droplets do not wet and rolls off easily [64]. This is a consequence of a dual topography on a low-energy surface constituted of epicuticular wax crystalloids with nanometric dimensions uniformly covering a regular microrelief of about 1-5 µm in height.…”

Antibacterial Films Based on PVA and PVA–Chitosan Modified with Poly(Hexamethylene Guanidine)

“…The application of different polymeric films in the industry (as a packaging material) or in medicine (as a wound dressing material and implants) is strongly dependent on biological fouling. Biofouling is regarded as an adhesion of different biological substances, like microorganisms, plants or animals (i.e., bacteria) to the analyzed surface, thus leading to the deterioration of surface properties or to damage [41]. The first step of biofilm formation is the adhesion of bacteria.…”

“…Polymeric films that are classified as having antibacterial surfaces can be divided into two types: anti-adhesion surfaces and bactericidal surfaces [41,42]. The first type of surface is characterized by an unfavorable topography, impeding the process of bacterial cells affixing themselves to the material's outer layer [43].…”