Dr. Arnaldo Carrasquillo is currently working as a Professor in the Department of Chemistry, University of Puerto Rico Mayagüez, Puerto Rico. His research interests includes the role played by electrode surface composition and structure in determining and controlling the electrochemical reactivity of species present at electrode-solution interfaces. Current research projects study fundamental aspects of electrocatalysis, molecular adsorption and biosensor technologies. He /she is serving as an editorial member and reviewer of several international reputed journals. Dr. Arnaldo Carrasquillo is the member of many international affiliations. He/ She has successfully completed his Administrative responsibilities. He /she has authored of many research articles/books related to the role played by electrode surface composition and structure in determining and controlling the electrochemical reactivity of species present at electrode-solution interfaces. Current research projects study fundamental aspects of electrocatalysis, molecular adsorption and biosensor technologies.