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. 2017 May 23;34(8):1693–1706. doi: 10.1007/s11095-017-2177-4

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© The Author(s) 2017

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 3 — Characterization of LB-MSN-OVA. (a) Hydrodynamic diameter of LB-MSN-OVA determined by DLS. (b) CryoTEM image of AEP-MSNs, and (c) LB-MSN-OVA, revealing a lipid bilayer thickness of ~4 nm (indicated by white arrows), scale bar = 100 nm. (d-f) colloidal stability of OVA-loaded AEP-MSNs and LB-MSN-OVA over one week: (d) hydrodynamic diameter, (e) polydispersity index and (f) zeta potential).