products manufactured by the 'top-down' method, for example nano zinc oxide particles used in UV filter creams, and bacteriocidal additives such as silver nanoparticles;
produse elaborate prin metoda "top-down”, de exemplu nanoparticule de oxid de zinc folosite în componenţa cremelor cu filtru UV şi aditivi bactericizi cum ar fi nanoparticulele de argint;