Metal nanoparticles stabilized with cationic compounds capable of absorbing visible light

Polymer surfaces containing photoactive nanoparticles active under visible light that demonstrate high viricidal and bactericidal activity (>log4). Key advantages include effective disinfection by generating reactive radicals, decontamination of organic pollutants, self-sustainability with no power consumption, human-safe application due to nanoparticle attachment, and differentiation through visible light activation compared to solutions requiring UV radiation.