Chiral molecules are those that have two versions that are mirror images, like our right and left hands. These molecules have the same structure but different properties when they interact with other molecules, including those inside our bodies. This is important for example in drug molecules, where only the right- or left-handed version may have the desired effect.
Click here for original story, A new way to identify chiral molecules with light could vastly improve detection efficiency
Source: Phys.org