Sanofi 1 article published in JoVE Bioengineering Formulating and Characterizing Lipid Nanoparticles for Gene Delivery using a Microfluidic Mixing Platform Christina M. Bailey-Hytholt*1, Paroma Ghosh*1, Julia Dugas1, Isidro E. Zarraga1, Amey Bandekar1 1Biologics Drug Product Development & Manufacturing, Sanofi, Framingham, Massachusetts Lipid nanoparticles are developed using a microfluidic mixing platform approach for mRNA and DNA encapsulation.