Keywords: 60Co; Cobalt-60; 137Cs; Cesium-137; AuNPs; gold nanoparticles; β-CDC6; Amphiphilic β-cyclodextrin; Cu/LDPE; Copper/low-density polyethylene; DLS; dynamic light scattering; e-beam; electron beam; EO; Ethylene oxide; EDS; Energy-dispersive spectroscopy; E