Ludwig-Maximilians-Universitaet Muenchen (LMU) Jan 16 2026 Novel hybrid polymer nanocarriers enable effective vaccine delivery in the lungs and the targeted activation of immune cells. An LMU research team led by Professor Olivia M. Merkel, Chair of Drug Delivery at LMU, have developed a new delivery system for inhalable mRNA vaccines. Published in the journal Cell Biomaterials , the study presents a novel combination of poly(lactic-co-glycolic acid) (PLGA) and poly(β-amino esters) (PBAEs)