english: Now, if you look at biology, there's many structures like DNA, antibodies, proteins and ribosomes you've heard about, that are nanostructured -- nature already gives us really exquisite structures on the nano scale.
non_english: Sada, ako pogledate biologiju, videćete mnoge strukture poput DNK i antitela i proteina i ribozoma za koje ste čuli, a koji su već nano strukturirani. Dakle, priroda nam već daje zaista izvrsne strukture na nano skali.