Due to the outbreak of infectious diseases caused by different pathogenic microorganisms and the development of antibiotic resistance, pharmaceutical companies and researchers are searching for new antibacterial agents. Infections trigger complicated issues in many fields of human life, such as environmental health, textile industries, waste treatment, marine ecosystems, and cosmetics and food preparations.

Although researchers and industries have made admirable efforts to prevent, control, and inhibit the growth and proliferation of pathogenic organisms, an effective solution to biofilms and the emergence of resistant strains has not yet been found, and the list of antibiotic-resistant strains is growing. In recent decades, nanoscale materials have emerged as novel antimicrobial agents due to their high surface area to volume ratio and unique chemical and physical properties. Some are already applied in clinical dressings and antimicrobial surfaces.

This Special Issue aims to bring together new trends and studies in antimicrobial applications of nanostructured materials in various fields. This Special Issue welcomes recent progress in synthesis (especially green/biosynthesis) and characterization of nanomaterials and their antimicrobial applications, especially against antibiotic-resistant and newly emerged infections. Original research and review articles are welcome.

Potential topics include but are not limited to the following:

• 3D antibacterial nanostructures
• Antimicrobial effects of green synthesized nanoparticles
• Mechanistic approaches of nanomaterials against infectious diseases
• Antibacterial nanostructures with reduced adverse effects for humans
• Antibacterial nanocoatings and nanocomposites
• Applications of antimicrobial nanomaterials in the clinic
• Future perspectives for antimicrobial nanomaterials