Assessing cytotoxic and antibacterial effects of high dispersion-stable sub-5 nm silver particles fabricated by ionic liquid-mediated electrochemical synthesis

was as low as 2 μg/mL. The minimum bactericidal concentration of Ag-NPs against three types of bacteria was 8 μg/mL. The long-term colloidal stability, acceptable cytotoxicity, and broad-spectrum bactericidal activity of Ag-NPs were demonstrated. These ultra-small nanoscale metal particles hold great potential for antibacterial applications like wound care and antibacterial coating.