The escalating threat of antimicrobial resistance and the global burden of cancer necessitate the development of innovative, multifunctional therapeutics. Silver–copper (Ag–Cu) based nanoparticles (NPs) have emerged as promising dual-action agents with potent antimicrobial and anticancer activities. Recent progress in green, chemical, and physical synthesis methods has enhanced the structural control and functional performance of Ag–Cu NPs, facilitating their biomedical applicability. The physic