The aim of this project is to develop new typologies of inhibitors of Aspergillus proliferation and particularly of aflatoxins production, harmless to the environment and to human health. In this study, substances such as thiosemicarbazones and hydrazones will be used. These substances are known for their significant biological activity,7 and in particular their metal complexes have often shown improved biological properties. We will also aim at developing a practical screening procedure to identify the most effective and safe compounds. The main objectives of the project are: i) the synthesis of new bioactive molecules, obtained by complexing metal ions with molecules of natural origin, in order to reduce the risk of food contamination by aflatoxin; ii) the synthesis of new bioactive molecules with antifungal activity and harmless for environment and human health; iii) the development of simple, inexpensive and high-throughput methods for detecting mycelia growth inhibition and mycotoxin production; iv) the development of approach to assess toxicity, genotoxicity and epi-genotoxicity of the new compounds, before their diffusion in environment; v) a database correlating chemical structures and biological/toxicological activitiese.