A new nano-coating was developed in Russia to curb the growth of bacteria and fungi, a breakthrough reported by the press service of NUST MISIS where the research originated. The team describes coatings formed from boron nitride nanoparticles interspersed with ultrafine silver or iron oxide particles. These composite coatings show strong antimicrobial action, notably suppressing Escherichia coli, Staphylococcus aureus, and pneumococci. In tests, coatings with even tiny amounts of silver achieve complete inactivation of bacteria, signaling potential for practical medical and industrial use. (Source: NUST MISIS press service)
The antimicrobial effect arises when metal ions penetrate microbial shells. Zinc and copper oxides are known for their robust microbe-killing properties and are already used in deodorants and to coat medical instruments. Russian researchers have found a cost-effective route to produce coatings with high antimicrobial activity by leveraging needle-like boron nitride particles, which interact more effectively with cell membranes. Iron and silver nanoparticles further amplify these properties, creating a synergistic blend that enhances bacterial disruption without demanding large metal ion concentrations. (Source: NUST MISIS press service)
Remarkably, even at low metal ion loadings—12 to 72 micrograms per square centimeter—the coatings demonstrated about 99% protection against a broad range of microbes in laboratory assessments. Looking ahead, the research team plans to develop a dressing material based on this technology and to test its effectiveness against pathogens such as cholera-causing bacteria and coronaviruses. The focus remains on practical applications that could improve sterilization, wound care, and instrument coating in healthcare settings. (Source: NUST MISIS press service)
These developments reflect ongoing efforts by epidemiologists and material scientists to explore alternative antimicrobial strategies in response to rising concerns about resistant strains and surface-contamination risks. While the findings are promising, researchers emphasize the need for comprehensive clinical testing and regulatory evaluation before widespread adoption. The goal is to translate laboratory success into safe, scalable products that can protect public health in real-world environments. (Source: NUST MISIS press service)