Professor Maria Vallet-Regi is a Spanish chemist, scientist and Professor at Universidad Complutense de Madrid, Spain. She is recognized as a pioneer in the field of ceramic materials applied to medicine. She was the pioneer who suggested introducing drugs into the pores of mesoporous silica materials, which inspired thousands of publications worldwide involving mesoporous silica nanoparticles for drug delivery. She is a Highly Cited Researcher 2018 (Clarivate Analytics). Her publications have been cited over 47.000 times and her h-index is 102. Prof. Vallet-Regi has been awarded many important International prizes. She has an ERC Advanced Grant entitled Polyvalent mesoporous nanosystem for bone diseases