My research focuses on biomolecular systems (DNA, peptides, proteins, antibiotics...) in the gas phase, and I currently study the following: 1) processes induced by direct interaction with ionizing radiation such as UV, VUV or X-ray photon, ion or electron beams; 2) geometrical structure and non-covalent interactions. I use a range of sources of neutral or charged atoms or molecules in the gas phase, mass spectrometry techniques as well as quantum chemical calculations methods.