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. 2020 Aug 24;15:6295–6310. doi: 10.2147/IJN.S257269

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© 2020 Wang et al.

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(A) The nanoparticle properties including size, surface properties, and shape of nanoparticles. (B) Schematic representation illustrating the biochemical and physiological barriers of oral drug delivery. (C) The relationship of the nanoparticle properties, oral bioavailability, and barriers in oral delivery.