After studying organic chemistry in Marseille (France), Guillaume Suarez came upon the fascinating world of biosensors during his research doctorate (Alcalá de Henares, Spain) dedicated to the elaboration of amperometric sensing devices using ordered (bio)molecular architectures. Since then, his research field encompasses the design, fabrication and integration of nanotechnology-enabled sensor systems for biological analysis. More recently, his research interest has focused on the development of novel biosensing tools for real-time detection of oxidative stress (e.g. International Patent Application; PCT/IB2011/055819). He joined the group Particles and Health at the IST in January 2013 with the aim of implementing advanced biosensor strategies to assess the effect of nanomaterials on exposed workers, directly at the work place.