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Lipid nanoparticles(LNs)have been widely investigated in oral drug delivery,displaying dramatic advantages in colloidal stability,biocompability and scaling-up.However,how to further elevate the ability of LNs to conquer multiple barriers(ie.mucus and epithelium barrier)in the gastrointestinal(GI)tract is still challenging due to the contradictory requirement of NP surface properties in the two processes.