O faagaau tu'ufa'atasi o se ituaiga o fa'agaau e faia e ala i ituaiga polymeric mea fa'amalosia fa'apapa, fa'amaufa'ailoga ma fafo fa'aanti-ofu ma fa'amasani matua apa, e aofia ai totonu ma fafo helix uaea lagolago fa'amau.