'Fussy' molecules prefer one direction over the other, chiral copolymer study finds

Despite their identical composition, molecules that are mirror images can interact differently with light and electrical current depending on their "handedness," which is called chirality. In a study published in Chemical Communications, a research team from Osaka University has produced spin-coated chiral copolymer films that display strong spin polarization, which enables the films to act as "spin filters" that behave differently toward currents with opposite polarization directions.