Marystela Ferreira obtained her BSc in Chemistry in 1993, MSc and PhD in Physical Chemistry in 1996 and 2000, respectively, at the Universidade de São Paulo, São Carlos, Brazil. Her main fields of interest are preparation and characterization of nanostructured thin films for sensing, and Layer-by-Layer and Langmuir-Blodgett films of polymers for sensing different analytes in environmental and biological samples. She is a lecturer at the Universidade Federal de São Carlos, Sorocaba, Brazil, since 2007.