Like our hands, molecules can come in right- and left-handed configurations. As most biomolecules like proteins or sugars appear in our bodies only in one of these possible configurations, determining molecular handedness is key in biochemistry and the pharmaceutical industry. Circular dichroism is a technique that uses polarized light to this end. Vibrational circular dichroism is a version of this method that looks at molecular vibrations using infrared light to fingerprint their chemical composition and conformation. However, current limitations in sensitivity at low concentrations or volumes hinder its application. This project will use nanostructures made of materials like silicon to amplify the interaction between chiral molecules and infrared light. By designing lattices of such resonators into so-called metasurfaces, researchers aim to boost the sensitivity of vibrational circular dichroism. This capability will enable a more accurate quantification of the purity of the handed chemicals used in medicines, perfumes, or food, with benefits for their effectiveness and safety.