Nanites

Nanites are a Hardmode crafting material used solely for crafting the Flask of Nanites and Nano Bullets, whose purpose is to inflict the Confused debuff with melee and ranged weapons, respectively. Nanites are purchased from the Cyborg for each.

Trivia

 *  is an informal term for a, a microscopic mechanism that could hypothetically be injected into living organisms to mend or control them.