Molecular mirror images assigned: Safer drugs thanks to a new solution to a 150-year-old chemistry problem?

Just like gloves, molecules come in so-called left-handed and right-handed versions. Until now, however, it could be determined only with great difficulty whether a certain molecule is right-handed or left-handed. Scientists now report a new solution to this 150-year old problem. In medicine, this would be a big step forward because, for example, the unwanted side effects of drugs could be avoided.