The effective components of the mRNA vaccine are all encapsulated in lipid nanoparticles (LNPs), which protect the mRNA from degradation and can also efficiently complete the intracellular delivery of mRNA. Lipid nanoparticles mainly contain four components: ionizable lipids, neutral auxiliary lipids, cholesterol, and PEGylated lipids. PEG can enhance the stability and life of LNPs. SINOPEG has taken the lead in realizing the commercial production of LNP delivery materials in China.
