Graphene represents a conceptually new class of materials that are only one atom thick. Its unusual properties have already attracted considerable interest of many electrochemists and paved the way for creating new and powerful electrochemical devices. The rapid emergence of graphene has thus opened new horizons for the application of this important nanomaterial in electroanalytical chemistry. Several attractive graphene-based electrode materials, with an attractive electrochemical behavior, have thus been described over the past 3 years. As with all new electrode materials, graphene-related nanomaterials - used for the preparation or modification of new electrodes - require detailed characterization to properly interpret the observed improvements.
The present Special Issue of Electroanalysis sheds useful insights into the fundamental electrochemical properties of graphene and reflects the latest advances and current trends in using this exciting form of carbon in electrochemical sensors and biosensors, and in electroanalysis, in general. Given the promising properties of graphene, the studies reported in this Special Issue are just the beginning of a fantastic topic. I would like to thank all the authors who contributed to this issue.