Insights into gold nanoparticles Prof. Dr. Eladia M. Peña-Méndez Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Chemistry, University of La Laguna, 38071 La Laguna, Tenerife, Spain Gold nanoparticles represent very active area of research due to their unique and fascinating properties, and because their innovative applications in fields such as environmental science, agriculture, chemistry, electronics, biomedicine, etc. The lecture aims to present a detailed focus on the analysis and characterization of gold-based nanomaterials produced by different methods (engineered and natural).