Dr. Helen Gika is an associate professor of Bioanalysis at the School of Medicine, Aristotle University, Thessaloniki. She studied Chemistry (2000) and received her Ph.D. (2004) in Analytical Chemistry from the Department of Chemistry at Aristotle University. She has worked in food analysis and quality control (Athens, Greece), on the development of metabonomic tools for biomarker discovery research at AstraZeneca (Alderley Park, UK), and as a post-doctoral researcher through an EU FP7 individual fellowship on biomarker discovery at Aristotle University. She then worked at FEM-IASMA on the development of metabolomics methods. She started as a lecturer at the Dept. of Chemical Engineering at Aristotle University (2011) before moving to the Dept. of Medicine (2015). She was promoted to assistant professor in 2018. Her research focuses on analytical separations and mass spectrometry (HPLC, LC-MS, and GC-MS) and their application in life sciences, with a special interest in disease biomarker discovery.