Xavier de Mollerat du Jeu, Ph.D. is a Director of R&D transfection group at Thermo Fisher Scientific, working on creating and improving new nucleic acids delivery for both research and therapeutic applications. Xavier identified new DNA delivery approaches for hard to transfect cell lines and primary/stem cells and he is the inventor of Lipofectamine® 3000. Xavier's team is also focusing on new delivery solutions for CRISPR delivery, new scalable lentiviral production systems, mechanical delivery approaches for primary T cells and in vivo delivery of RNAi/mRNA for research and therapeutic application. He studied molecular biology and plant physiology at the University of Montpellier II in France, and received his Ph.D. in human genetics in 2003 from Clemson University in South Carolina. His thesis work involved identifying the gene(s) responsible for Split Hand/Split Foot Malformation 3 (SHFM 3). His post-doctoral fellowship research was in the laboratory of Dr. Michael G. Rosenfeld at UCSD, where he studied the roles of microRNAs in pituitary gland development. He joined Thermo Fisher in 2005.