Laser‐Textured Surfaces: A Way to Control Biofilm Formation?

Abstract

Bacterial biofilms pose serious problems in medical and industrial settings. One of the major societal challenges lies in the increasing resistance of bacteria against biocides used in antimicrobial treatments, e.g., via overabundant use in medicine, industry, and agriculture or cleaning and disinfection in private households. Hence, new efficient bacteria‐repellent strategies avoiding the use of biocides are strongly desired. One promising route to achieve bacteria‐repellent surfaces lies in the contactless and aseptic large‐area laser‐processing of technical surfaces. Tailored surface textures, enabled by different laser‐processing strategies that result in topographic scales ranging from nanometers to micrometers may provide a solution to this challenge. This article presents a current state‐of‐the‐art review of laser‐surface subtractive texturing approaches for controlling the biofilm formation for different bacterial strains and in different environments. Based on specific properties of bacteria and laser‐processed surfaces, the challenges of anti‐microbial surface designs are discussed, and future directions will be outlined.

Laser–Chemical Surface Treatment for Enhanced Anti-Corrosion and Antibacterial Properties of Magnesium Alloy

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Nanotubular Arrayed LIPSS Achieved with Femtosecond Bessel Beam on Silver Surface for SERS-Based Multiple Explosive Sensing

“…Numerous techniques are available for creating nanostructured surfaces, encompassing sputtering, chemical and plasma etching, chemical vapor deposition, , self-assembly, nanoimprint, optical, electron beam, and physical lithography, , and more . However, ultrashort laser irradiation has emerged as a robust and efficient alternative for producing diverse nanotextured surfaces, notably laser-induced periodic surface structures (LIPSS). − LIPSS represents a captivating realm of research, presenting promising applications spanning hydrogen evolution, photochemical water splitting, , solar-thermal conversion, data storage, surface chemistry, photodetectors, and biomedical applications. − This burgeoning field of nanopatterning serves as the cornerstone of fields such as the semiconductor industry, microelectronics, and photocatalysis . Furthermore, within the realm of nanosystems, there has been an intriguing surge in advancements, particularly in optical, chemical, and photocatalytic properties.…”

Antifouling nanoplatform for controlled attachment of E. coli

“…Besides, in most cases, the fabricated nanostructures are not freestanding structures and need to be attached to or coated on substrates. Laser ablation offers a chemical-free alternative, enabling sterile, contactless nanomaterial production fast and efficiently, and allows the creation of diverse surface structures [33,34]. Previous studies using laser ablation have mostly focused on bacterial adhesion on metallic [35][36][37] and polymeric [38][39][40] micro-and nanostructures and often still require subsequent chemical treatments that may introduce contaminants.…”