Live30 webinars pack the latest innovations and applications into a data-rich 30-minute session.
Lipid nanoparticles (LNPs) have emerged as the leading platform for mRNA delivery, yet their biological performance depends sensitively on the structural and compositional features of the formulation. A major challenge lies in the use of PEG-lipids, which, despite their stabilizing function, are associated with adverse immunological effects such as accelerated blood clearance and hypersensitivity. In this talk, we will discuss polysarcosine-based lipids as a promising alternative to PEG for the stabilization of mRNA-loaded LNPs. By combining design-of-experiments methodologies with predictive modeling, we used Sunscreen to systematically assess how variations in polymer architecture and lipid structure influence nanoparticle properties and delivery efficiency. This approach enabled the identification of quantitative structure–activity relationships and provided a framework for the rational optimization of LNP formulations. These findings illustrate the value of data-driven strategies in the development of improved nucleic acid delivery systems.