DPPE-MPEG 2000 (1,2-DPPE-MPEG(2000)) is a PEG-modified lipids. DPPE-MPEG 2000 can reduce the nonspecific adsorption of protein and prolong circulation time in vivo[1].
References
[1] Xiao H, et al. Regulation of microglia polarization via mannose receptor-mediated delivery of siRNA by ligand-functionalized DoGo LNP. RSC Adv. 2021 Oct 4;11(52):32549-32558. DOI:10.1039/d1ra04293a